Aspects

vs

Double

Double is a primitive data type used to store fractional numbers that holds a double-precision floating-point (often 64 bits).

Int

A data type that represents an integer

Range larger smaller

Example

"A double variable can hold larger values than an int and is able to store an approximation of the value 4000000000"

from question

Int to Double casting issue

"It would really depend on the processor and the range of the int which is better and using double would resolve most of the range issues"

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Rounding integers routine

"Clearly calling int x on a double is asking for trouble since double can store bigger numbers than int"

from question

Compare two doubles with different number of decimal places in C#

"Extra arguments to variatic functions with types smaller than int are promoted to int and passed as such and floating point types smaller than double are promoted to double and passed as such"

from question

I am unable to figure out how the below code produce output as ffffffaa please help me understand?

"In vararg functions such as printf int smaller than int are promoted to int and floats smaller than double are promoted to double"

from question

C++ union to represent data memory vs C scalar variable type

"In the third case double precision loss is much smaller than the int and you get something like"

from question

Why can't I divide integers correctly within reduce in Swift?

"This imply that result of pow x y converted to int will be truncated because of double arithmetic and exponentiation that will return double value slightly smaller than int"

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Sieve of eratosthenes in c

"You could try to add some value to the double to make sure it s bigger or smaller than an int can be"

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How to not convert double to int C#?

"These conversions promote float to double and anything smaller than int to int or unsigned int"

from question

C datatype : Between Short and Int

"That means a float will be a double and anything smaller than an int will be an int"

from question

Why does printf("%f",0); give undefined behavior?

"And since float is typically promoted to double with varargs calls if your int is smaller than your double this will break"

from question

Printf function in c

"Read your bytes into an int which is always 32 bits in java then use this;you need double not float because single precision floating point won t necessarily be long enough to hold your 32 bit fixed point number"

from question

How to read binary 32-bit fixed-point number in Java

"That being said if you work with double values instead of int you ll likely see the results you are expecting;the pow function works with float and double not integers"

from question

Strange pow(x, y); behaviour

"So use a float constant 1000000000000000000000f or 1e+21f instead of an int constant 1000000000000000000000;or if you re really using double which is usually a better idea than float use 1000000000000000000000.0 or 1e+21"

from question

Integral constant too large C# when converting number

"Operations on float and especially double cost more than on int"

from question

Super fast median of matrix in opencv (as fast as matlab)

"Fails as expected since 9223372036854775807.0 is 2 63 these numbers are way out of the range where all int are exactly representable as double"

from question

SQLite - float granularity breaking unique contraint?

"I wanted to check if a double value is bigger than maximum int value but because converting function does not return an optional value i am not be able to check by using optional binding"

from question

Why converting Double to Int doesn't return optional Int in Swift?

"The result might not fit into an int or a long;the range of a double is much greater"

from question

Why doesn't Math.Round/Floor/Ceiling return long or int?

"A long or any int value cannot handle decimal points so if you have a number 0 x 1 when the decimal is chopped off you re left with 0;you re using unsigned long when you should be using float or double to do division"

from question

Outputting an equation in C

"Because double can contain larger numbers than int or long"

from question

Why Math.Ceiling returns double?

"If this operation overflows this operation means the range of double is smaller than the range of int and we can use dbl_max -dbl_max as max_double_to_int and min_double_to_int respectively"

from question

Can a conversion from double to int be written in portable C

"Also given that double has a wider range what would one return for those out of range int values"

from question

Why Math.Ceiling returns double?

"Xsd int not a derived type of xsd double;what is important in datatypes is the value 100 xsd int and 100 xsd double are the same value"

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Do xsd datatypes for literals have subclasses?

"If you wrap a c type as an nsnumber and then unwrap it as above could the type change due to argument promotion which means that int types smaller than int get passed as int values float values as double in c"

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How to transfer objective-c language (`va_list`,`va_start `,`va_end ` ) to swift language？

"In the variable-length portion of the argument list all integral arguments smaller than int are promoted to int and float is promoted to double"

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Why char specified as integer in printf gets printed correctly

"As pow returns a double which has a much larger range than either int or long long int you could have"

from question

Catching overflow during exponentation of int or long long int

"1 int range is much smaller than double and for pow 2 100 that fails"

from question

Pow function not working properly in Code::Blocks IDE

"Types bigger than double and int are 64-bits"

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Confused about K&R c explanation on type conversions

"The second issue that you should take into account is your ans array you try to initialize account with values that are much more bigger than int or double capable to hold values that are bigger than 2 64"

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INOI 2015 - Periodic Strings

"You can convert your object into double and then into int but you should take care as double value is much bigger than int"

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Excel.Office.Interop is returning double even when it is an integer

"If you tell it the top of the stack has a double and double is bigger than int you ve now just told it to take extra bytes off of the stack which is terrible"

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Strange output for function with variable number parameters of type double

"You could try using double which is bigger than a long and use only the int part"

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Need a larger primitive type for integers

"Many processors and or compilers implement long double types larger than any int type regardless of name and there are processors with 32 byte pointers"

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For each scalar `T`, is there any guarantee an integer of the same size exists?

"When the result of math.pow i j a double is larger than integer.max_value and you cast to an int then the result is integer.max_value"

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Why is my program not giving the expected output?

"Double is larger than an int hence the overflow"

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Overflow Exception Error

"Because a double is larger than an int this accesses the 4 bytes of the original int and an extra 4 bytes on the stack"

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Void pointer = int pointer = float pointer

"A double is 1 typically larger than an int and 2 has some internal structure"

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Type Casting in C++

"For platforms where int is larger than double it s obviously false"

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Are all integer values perfectly represented as doubles?

"If you are not storing infinity nowhere and use it just for comparison you can use double infinity which is larger than int and long max value"

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Interpret infinity in a knapsack task

"Because a double which f expects probably is larger than an int on your platform"

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Printing int variable in float format

"The largest double value is also larger than the largest int so it would have to be a long"

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Why does Math.floor return a double?

"Can be false when int range is wider than double uncommon and dx is a rounded value whose next higher representable value to 2 greater"

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Casting between int, float and double in C

"The range of double is wider than int"

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Why can't I implicitly convert a double to an int?

"It is not exact on rare platforms where the range of int is wider than the range of a double s exactly representable whole numbers"

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Casting between int, float and double in C

"Double has a greater value range than int"

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Why Math.Ceiling returns double?

"I know that there s another way to check if a double number is bigger than maximum int value but i m curious as why it s happening this way"

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Why converting Double to Int doesn't return optional Int in Swift?

"So if i try to convert a double number bigger than maximum int it crashes instead of returning nil"

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Why converting Double to Int doesn't return optional Int in Swift?

"The int type is smaller than the float type;in general byte short and chars int long float double"

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Integer division java returns a double? What is going on?

"Note that when float values are passed to printf float values are automatically converted to double just as numeric types shorter than int are promoted to int"

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How to use float.h macros to enhance the floating point precision

"As here as i mention double is higher type it stores int float values as per you expected"

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How to Return Different data types in Abstract class of java

"This will work as long as the double is not bigger than what can fit in an int;you are adding an int to a double so the result is a double which cannot be used with the operator"

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Trouble generating random numbers?

"Don t forget that the range of int is much smaller than the range of double"

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Convert double to int

"A float double isn t built like an int type;int s are straight-forward binary numbers maybe with a sign"

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Double Calculator in C

"Aside from the fact that you re comparing a double and an int and have no idea which one will be casted to the other s type you re comparing floating point numbers with the operator;comparing floats and double doesn t work like this because"

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Math functions in thread returning wrong values, with android ndk

"A double has a range that can be greater than any int type"

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Why is the return type of the "ceil()" function "double" instead of some integer type?

"You should be using math.ceiling which will return the smallest int value that is greater than the double passed in"

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Simple question on Math.Round in C#

"Today i noticed that when i cast a double that is greater than the maximum possible int to an int i get -2147483648"

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Handling overflow when casting doubles to integers in C

"The conversion from float to long double is no better than the conversion from float to int since they are both not promotions"

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No really, when does floating point promotion actually happen?

"The range of exact representation of integers by the double type is wider since the value occupies 64 bits and there are 53 bits reserved for the mantissa"

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C++ I've just read that floats are inexact and do not store exact integer values. What does this mean?

"Keep in mind that double variables can hold numbers of much greater magnitude than int variables so the loss of data may be considerable"

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Function prototypes and argument coercion

"Indirect some processors may have a limited range for the immediate value for example 8-bits and anything larger such as int or double would require indirect access an addition word for the pointer address"

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Example for when use of a constant yields smaller code than a #define

"You really might need to up cast everything into a double and then check to see if the result is greater than or less than an int"

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Determine if integer overflow is over or under bounds

"If a value in the double array is less than the int value at the same position of the two dimensional array then in that part of the boolean array the value would is true"

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Create two dimensional boolean array from two other arrays

"And if the value of your double is higher than the range of an int then this can produce undefined behavior"

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How can you legally perform the mod operator on a rounded double?

"If your resulting double has higher int value then simple int math sometimes stops working"

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Log of unsigned long long int argument

"So instead of using double and allowing for invalid inputs you should be using long instead which has a greater range than int"

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Cumulative Binomial Probability C#

"And the second calculation 33 5.0 the result is actually promoted to double which has greater precision than int and resulted to decimal"

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Why does this basic java code yield different outputs?

"Recall that the int type may have greater precision than double"

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Can a conversion from double to int be written in portable C

"I guess that your input_arg should be defined as a matlab int type not as a double;it seems that you cannot use a double which is a floating point type as a representation of an address in memory which is inherently an integer value"

from question

Explicitly setting the value of a pointer

"You do explicit type casting to get your result in int because double is a larger data-type than int"

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Convert Double to specific form

"I am trying to round a large double larger than int allow so it will print without decimal places to the e13 power but i don t know how"

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How do I remove decimal places from large doubles and get them to print as a number instead of 2.13837537957E14?

"1 if your data are int or some data form that takes less space than a double float"

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Work with very large arrays in matlab

"Double is a different data type and generally much slower than int"

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One Thread slower than another even they do the same thing

"If a double is larger than the maximal int value converting it to int will give you the maximal int value"

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Why isn't explicit type casting for Math.pow() causing integer overflow?

"4 + 4 since int is smaller size compared to double padding of double size is done"

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"Num is a of type const int which is of lower rank when compared to the type of z which is double"

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Warning when converting to `int' from `double'

"Your upccode int is larger than the long data type so i tried your upccode int with double which is a float but works"

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Javascript converted to Excel VB Function Produces #NUM! error

"The math.round double a method returns a long which is a larger type than int"

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Why is (int) required in return (int) java.lang.Math.round?

"These consist only of promoting int types smaller than int to int or unsigned int and promoting float s to double"

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Explicit Type Casting in C

"Int can hold a smaller range than double"

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Explicitly rounding numbers to more than 7 decimal places in C++

"Int or int32 has a much smaller range than double"

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When cast NaN to int, why does the value change depending on whether it is assigned to a variable or not?

"In other words instead of throwing a runtimeexception your compiler converts the int that takes less size to the type that takes more size which is in your case a double"

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Why does this method return an output?

"The double has a bigger mantissa the int bits of the real number"

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What is the difference between float and double?

"A big reason double ceil double does not return an int type is because that limited functionality is rarely needed;int types have or almost always have a more limited range that double"

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Why is the return type of the "ceil()" function "double" instead of some integer type?

"Another option would be to add a cast not recommended due to the same loss of information the error warns you about - the fractional part will simply be removed from the value and double can hold way larger and smaller values than int"

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Incompatible types: possible lossy conversion from double to int with switch case

"Int types narrower than int are converted to int and float values to double"

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What are the semantics of function pointers with empty parentheses in each C standard?

"Int arguments narrower than int are promoted to int or to unsigned int if the type is unsigned and the type maximum value exceeds int_max and arguments of type float are promoted to double"

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Convert a char with va_arg

"Note it s not a good idea to cast it into int value because max double value is greater than max int value"

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Value of null in double should print 0

"You need to use 2 even if the number of bits in your int type is larger than the precision of a double since the number of used bits in the most significant value might only be 1"

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Conversion Big Integer <-> double in C++

"The range of double is much wider than the range of int or long"

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Why does Math.Floor(Double) return a value of type Double?

"Indeed fact is limited by the range of type unsigned int which is much less than the precision of type long double"

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Implementation of sine function in C not working

"Double s being floating point values and having a range larger than int s cannot guarantee no loss in data so c# requires an explicit conversion usually termed explicit cast via the explicit operator to indicate to the compiler that we re okay with losing data"

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What's the C# equivalent to C++'s dynamic_cast?

"With float x the conversion is commonly inexact on many platforms over the range of int as float has not more range than double and is commonly narrower"

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Casting between int, float and double in C

"If those are smaller than dbl_max_10_exp the range of double is greater than the range of int and we can cast int_max and int_min to double"

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Can a conversion from double to int be written in portable C

"The int and short are equal because upgrading a short to an int will not change its value;the reason the float and double are not equal is because their values differ slightly"

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C# Value Comparison

"Since sizeof int is very probably smaller than sizeof double this is going to lead to horror"

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Access violation writing location 0x011CF000

"An int key is simpler to implement and easier to use and understand;an int key s also smaller 4 bytes vs 16 bytes so indexes will fit about double the number of entries per io page meaning better performance"

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Pros and cons of using MD5 Hash as the primary key vs. use a int identity as the primary key in SQL Server

"Int values will be represented exactly as double numbers so long;as the absolute value of the int is less than 2 m the length of"

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When should integers be explicitly specified?

"The method should return a double not an int;when you do 1 a and you do not explicitly cast it to float double the default result will be an int this is the default type of a arithmetic operation in java between integral operands if not explicitly cast to something else"

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With given k, find the geometric sum using recursion

"Define a precision for which you decide whether a double value is an int or not;test whether the rounded value of the double you have is a correct result"

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Calculating nth root in Java using power method

"But a double is much larger so printf only gets a bunch of zeros"

from question

Wrong output from printf of a number

"Another reason is that the range of double is far greater than that of int"

from question

Does casting to an int after std::floor guarantee the right result?

"This doesn t change the binary value so the number displayed is the binary representation of a float or a double;the actual cast from float to int is much more complex in the generated assembly"

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How is conversion of float/double to int handled in printf?

"Because a double is typically larger than an int and because the struct is packed the field b is not properly aligned when the smaller field appears first"

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Get rid of IAR compile warning Pa039 ? "use of address of unaligned structure member"

"All larger int can not be represented exactly by a float therefore the calculation with numbers having 8 or more digits using float cannot be exact;double precision floating point numbers can represent numbers up to 2 53 9007199254740992 exactly"

from question

Succesion of numbers passed into a label coming up with weird results

"The range of double is way greater than the range of 32 or 64 bit int which is why std floor returns a double"

from question

Does casting to an int after std::floor guarantee the right result?

"Typically a double is 64-bit ieee floating point with roughly 52 bits precision and with range much larger than 64-bit int so magnitude is no problem"

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How to convert int64-fixed-point to double?

"Int is a 16-bit signed int type that can easily fit into a double which is much larger than 16 bits"

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Basic VBA Questions (Integer)

"If one of the operands is a double the result of the multiplication would be a double which allows for a much larger range than an int"

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The effect of assigning parameter types on integer overflow

"If you must use binary floating point double is usually a better choice than float unless you are dealing with a lot of numbers and know float has enough precision"

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Fix for float precision issue without BigDecimal

"A solution using int only calculations should be quicker than float double calculations is"

from question

C# convert YUV 4:2:2 to RGB?

Precision precise problems

Example

"Int arithmetic is far more precise and predictable;lastly you can always use a high precision library though i think double or long long will be good enough for you"

from question

Answer is rounding when it shouldn't C++

"This is important because if the int needs more precsion than 52-bits the precision is too low for a double"

from question

What happens when I change int 8 to int 16

"You used the double to calculate an int result the double is more precise than the int so you lost precision"

from question

Double and Int dr. java

"So if you have a int and a double the double is higher precision so the result will have that form"

from question

What is the data type of output if i get the product of integer and double?

"Double doesn t have infinite precision and you can t gain more precision than a double has by converting a double to a bigdecimal like you can t gain more precision with an int when you do which is 0.0 because it widens an int to a double"

from question

Java DecimalFormat losing precision while formatting double

"Double can hold more precision than int"

from question

Unable to store Bigint data to mysql database using send_long_data

"Not really considering that a double can be a much higher magnitude than an int"

from question

Why does C# Math.Floor() return Double instead of Int

"You probably need arrays of int which makes some sense since it probably wants more precision than an int can give to be double or floats"

from question

Can't differentiate wrt numpy arrays of dtype int64?

"Double is better than int though as it will help you keep precision"

from question

Which Data Structure to use for getting the desired result

"Since int is less precise than double i thought i needed to cast it when parsing it into a method"

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Parse different data type Java

"There are few problems with your code is not applicable to as double doesn t extend int"

from question

Generics compliation error. Can't fix it

"Further the precision of double may be less than int introducing other problems"

from question

* (no title is found for this review)

" and y are added as double and casting to int will saturate to the range;this is not as suitable for long s as precision of double is less than that of long but if the precision is not as important the precision will suffice"

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Saturated addition of two signed Java 'long' values

Faster slower machine

Example

"Using and at the same time to check equality on a int results in slower code because it takes two comparisons instead of one taking the double amount of time"

from question

When comparing for equality is it okay to use `==`?

"Incrementing the value might be a special case but it s possible that on your machine incrementing double is slower than incrementing int"

from question

One Thread slower than another even they do the same thing

"Even dividing int is slower than multiplying floats or double in some cases"

from question

Java date calucation truncates decimal place at result

"With it is nub on and comparing big int is slower than comparing double"

from question

Exponent operator performance

"Also after the first coercion from a side effect of a benchmark as noted above r will operate on double s and that contains slower manipulations than on int s"

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Discrepancies in Benchmark and Processing Time Results

"In addition to having different semantics from double int arithmetic is generally faster and the smaller size 32 bits vs"

from question

Difference between int and double

"Using double multiplication is shorter because the compiler uses the processor s floating point opcodes which probably run faster but actually i don t know than not using t for the same operation"

from question

Should I use multiplication or division?

"Int represents a double performance hit listarray with iterator is 3x slower than int"

from question

Array or List in Java. Which is faster?

"The difference is that int are still faster than double because it takes very few clock cycles to do arithmetic operations on int"

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Algorithm speed with double and int?

"Maybe division between double and int is faster than it between double"

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Efficiency of summing images using MATLAB and OpenCV

"Int multiplications however are only 1.5 times faster than double multiplications"

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Int vs float arithmetic efficiency in Java

"On my machine the double swap loop completes 11 times faster than the int swap loop"

from question

Performance swapping integers vs double

"Int subtractions are 2.5 times faster than double subtractions on my machine"

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Int vs float arithmetic efficiency in Java

"So i asked myself can a double be faster than a int"

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Numerical optimization

"Often using int math is faster than double"

from question

Faster input output of floating numbers in c

"Similarly when i cast a double that is less than the minimum possible int i also get -2147483648"

from question

Handling overflow when casting doubles to integers in C

"This can t help performance either since pow double int is significantly faster than pow double double in general"

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How to raise double to array powers in Eigen

"Converting it in php between int and double will be slower than storing double in the database"

from question

How to store average rating in MySQL?

"Double is much slower than int"

from question

Subsetting in data.table

Part literal checking

Example

"However if you have large enough number the limit checking does not work because 64bit double precision has less bits usually 54 but this is not defined in standard for the fractions part than a 64bit int"

from question

Converting strings to integers the right way

"The double literal 99.9999999999999 can be represented as a double which is less than 100 so the cast to int truncates the decimal part and 99 is the result"

from question

How the explicit cast from double to int rounds in Java?

Exact wall accurate

Example

"The int value is less likely to with double since double is more precise and can represent many more exact numbers"

from question

What happens in C++ when an integer type is cast to a floating point type or vice-versa?

"Instead use biginteger which uses an arbitrary number of bits to represent an exact int limited only by memory;double doesn t have enough bits 52 to exactly hold 65 17"

from question

Computation in Java doesn't equals to expected result

"I figured out this was happening because i was storing the wall coordinates in double and although double are certainly more accurate than int they still aren t exact"

from question

Java Game Engine: Raycasted walls are hollow, broken, and look like fecal matter

Example

"The problem is that a positive double very slightly less than an int casts to the next int down but rounds to the closest int"

from question

If the result of a double is divisible by another double is accurate?

"Or math.ceil double which returns the closest int that is more than the double"

from question

Have a better solution for this math computing? (Java)

F can not

Example

"Since your to is 1 of type int you get overload version 4 with a return type of double;now it s entirely possible that given a float f float nextafter double f 1 is exactly equal to the original f it s rather likely that the next representable number in type double cannot be represented in float and that the conversion back to float rounds down"

from question

How to loop over exact representations of floating point numbers?

"F int is visible within the definition context but not f double so overload resolution resolves to f int for both calls;f double cannot be found by adl because built-in types have no associated classes or namespaces"

from question

Point of instantiation and name binding

"List list int is cast to list seq int and then its map has the proper type for intseqtoint;your problem is that double is not a subclass of number"

from question

Scala define mapper of superclass

Example

"Since an int is representing by a non-decimal number 1 and a double is represented by a decimal-number with precision 32 bytes more than that of a float 1.0 we can say that int s are less than or smaller than double s and by that logic int s can be promoted to double s and double s can be demoted to int s"

from question

Varargs Java Ambiguous Call

"You can work around this issue if you ll advance to big int floating point numbers that store more bits than a double precision number"

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Flash: Math.pow calculates wrong answers for larger numbers

Performance version better

Example

"I m writing a c# class to perform 2d separable convolution using int to obtain better performance than double counterpart"

from question

Integer vs double arithmetic performance?

"Well in multithread the performance of the int version is 2.6 times better than the double precision"

from question

Intel SIMD instructions speedup

"The versions using diff are especially impacted ave_diff with int constants is about 2.5 times faster than the double contants version"

from question

How to return the last value in a vector that met a certain condition

Better function bullet

Example

"Short int is an int type so bullet #2 kicks in and causes generation of a wrapper which calls double abs double and this wrapper is a better match than int abs int"

from question

Why did GCC break code that calls abs function with short argument?

"Because according to the rules of overload resolution void function int y int w is a better match than void function float y float w and therefore there is no ambiguity;calls function 1.2 2 and function 1 2.2 both have one argument that is an int and is the exact match with one of the arguments of void function int y int w and so only one type conversion is required double to int"

from question

"The problem is that the precision of the data type int is smaller as the precision of double the function pow returns double therefore the value of binarychar i will be implizit converted to double and so on."

from question

Conversion from binary string to decimal?

"This example is exactly the situation described in the second bullet so the function returning double is clearly better than the other two;here s where it gets weird by a very literal reading operator int is also better than the template specialization because of the third bullet"

from question

"In java you can tell the compiler what kind of numbers do you have if you look at the signatures you have public static void foo int i long s public static void foo long i int d you have an overload of the method that s ok but now when you use the methods you have diferent types as arguments of foo you can do this in several ways or just foo 10 100l the l means your number is of type long the same can be done with 10.02f meaning float or 10.05d meaning double is better to use capitalized letter so the is no missunderstanding between 1l looks like eleven and 1l 1 long"

from question

I am getting method ambigous error for below code

Specific void argument

Example

"We could check that void mymethod int i is more specific than void mymethod double a if any invocation handled by the first method can be passed on to the other one without a compile-time type error"

from question

When passing arguments to methods become ambiguous in Java?

"I thought when i pass 1 as the argument java would have picked the first argument because int is more specific than double"

from question

Why is Java picking this overload over the other

"This behaviour is due to the fact that int is more specific than double while there is no such comparison between int and boolean"

from question

"With argument int it works perfect;sometimes reading the exception helps a lot - my rowindex was double not int"

from question

How to delete a row from a JDBC recordset (XPages with relational extlib)

"By contrast void doitagain int is more specific than void doitagain double because int is a subtype of double according the the jls"

from question

"This is java detecting what you are doing and thinking it may be a mistake on your part - int s are less specific than double s"

from question

Double and Int dr. java

"So overloadedsingleparam double a is less specific than void overloadedsingleparam int a when an int value is passed as argument"

from question

"An implicit conversion from byte to int is indeed more specific than an implicit conversion from byte to double according to widening primitive conversions rules"

from question

When passing arguments to methods become ambiguous in Java?

"I m trying to parse a rdd seq string to dataframe. although it s a seq of strings they could have a more specific type as int boolean double string an so on. for example a line could be hello 1 bye 1.1 hello1 11 bye1 2.1 ... another execution could have a different number of columns"

from question

How to parse RDD to Dataframe

"Int is more specific than double because there s an implicit conversion from int to double but no conversion from double to int"

from question

Order of implicit conversions in c#

"And i get an error that says lossy conversion between double and int"

from question

Get specific element from array in Java

Memory largest storage

Example

"It implicitly converts an int to a double gets the double form of largest int that is less or equal to that double and converts that back to an int"

from question

Generating function arguments in java

"Int storage may require less memory than double on some systems here only half the memory is required"

from question

Change date to the end day of the month by data.table

"Int needs less memory comparing to double numbers"

from question

Big data memory issue in R

"Typically an int will use less memory than a double that is why one doesn t just use the largest possible datatype"

from question

Why should I use Integers when I could just use floats or doubles in C#?

"That case is highly probable that representing small maps by an array of pairs of int double is more efficient both in terms of memory and in terms of cpu time"

from question

What is are the advantages of a custom data structure?

Better match second

Example

"Why does f double is a better match than f long int 0 for f long"

from question

Why does f(double) is a better match than f(long, int=0) for f(long)?

from question

C# adding dynamic variables in loop

"With gcc 4.9 it prints error because the second overload isn t discarded and int is a better match than double"

from question

G++4.9 and g++5 different behaviour when narrowing in initializing list

"On glibc 2.21 it is an int;the manual says that using double is a better idea"

from question

What’s the correct way to use printf to print a clock_t?

"F double;although f int is a better"

from question

Beginning of class definition

"Note that long would be better than double since long can represent all int up to 2 63 - 1 precisely"

from question

Dealing with innaccuracy from double arithmetic?

"Except that double is much better than int for storing the join_angle in radians"

from question

Create arrow class

"So your compiler picks the double constructor as a better fit than the int one"

from question

Why is long casted to double in Java?

Possible size value

Example

"If the number is revised 1519490351963 this exceeds the greater value of an int 2147483647 so there is no conversion to whole a possible solution is to convert it to double another possible solution is to convert it to qvariant and then use tolonglong to use qlonglong which is a type of int that supports more bits"

from question

QJsonValue gets empty

"Except it is theoretically possible that int is wider than uint64_t in which case the arithmetic would be done with int but that is still satisfactory performing a cast guarantees the arithmetic will be done with at least that width for real numbers the usual arithmetic conversions are largely if either operand is long double the other is converted to long double"

from question

Data size definition in C programming while using mathematical expressions

"Since the value of the string is not an int but a floating point number we have to parse it as a double first;but to convert a string to the primitive double is not possible so we have to use the wrapper class double for this"

from question

Equation program - Error seems to point to the wrong line

"The conversion from double to an int type changes the value by design think to 3.141592654 converted to an int;the conversion from long int to int instead may or work or may be undefined behavior depending on the platform and on the value the only guarantee is that an int is not bigger than a long int but they may be the same size"

from question

Why doesn't clang warn about implicit conversion from double to int, but do it when from long to int?

"In contrast accessing the bits of a double as an int is usually in-practice safe even though it s formally ub because 1 an int is typically smaller or equal in size to double and 2 an int usually does not have any invalid bit patterns"

from question

Type Casting in C++

Precision type integer.parseint

Example

"I would recommend using int type keys long long for the map in first place and trim int type keys for double representation using a fixed precision for division"

from question

Ways around using a double as a key in a std set/map

"Note that pow here takes an int not another bigdecimal;the double type in java is a ieee double and has only 53 bits of precision"

from question

Java: Dealing with Exponentiation

"You can assign the int s returned from integer.parseint string s to your double variables because double s are higher precision than int s and so type conversion happens automatically without the need for an explicit cast"

from question

Arrays, Doubles, IF/Else

64-bit ieee-754 52-bit

Example

"There are 2 32 int values therefore at least one int value doesn t have an exact float representation;i m assuming that by float you mean a 32-bit ieee-754 binary floating point value by double you mean a 64-bit ieee-754 binary floating point value and by int you mean a 32-bit integer"

from question

Why does a cast from int to float round the value?

"If a 64-bit long is written as an int and is greater than 2 53 ieee double has a 52-bit mantissa then reading it as a double will lose precision"

from question

How to read a number using minimal-json

Narrower 32-bit function

Example

"But there was this legacy thing dating all the way back to k r c called default argument promotion that essentially says the compiler will implicitly convert all int types narrower than int to int if necessary to match a function signature and all floating point types narrower than double to double ditto"

from question

C++ ambiguous call to overloaded function with unsigned int

"I believe the following works as a sort comparison function for positive int provided the int type used is substantially narrower than the double type 32-bit int and 64-bit double and the log10 routine used returns exactly correct results for exact powers of 10 which a good implementation does"

from question

Sort array of integers lexicographically C++

"The int portions of the logarithms of 31 and 310 use different numbers of bits so there are different numbers of bits left for the significand so they end up being rounded to slightly different values. as long as the int type is substantially narrower than the double type the calculated limit will be much larger than the error in log10"

from question

Sort array of integers lexicographically C++

"0 is a 32-bit int you want 0d for 64-bit double s;you want to define transformtree for double not for an arbitrary type bound to type variable called double"

from question

Weird scala errors. found: scala.Double required Double

Error hard smarter

Example

"Edit as hans passant pointed out you can get an overflow error in case both int add up to more than a int can handle - so casting at least one of them to double is the smarter move return double a + b 2"

from question

How would I create my own test case to figure out why this code returns the correct answer half of the time?

"Is simply a hard error because f int is a better match than f double even though the f int overload causes a hard error further on"

from question

Why do static member functions need to have an implicit object parameter according to §13.3.1/4?

Floating-point fractions argument

Example

"Int is not fractions there are int division functions div and quot and their remainder counterparts mod and rem but that s not what you want here because you want a fractions result;the solution is to convert the int argument to a fractions type such as double using fromintegral"

from question

Trying to multiply lists together in haskell

"So no arguments after the 1st one get automatically converted except as defined by default argument conversions basically any int type with a rank lower than int to int and any floating-point type with a rank lower than double to double thank you pascal cuoq"

from question

Printing an integer as a Floaing point number

"Therefore ieee 754 single precision floating-point format has 23-bits fractions and int type has 32 bits so if the int is larger than 2 24-1 the float type can t represent it exactly;but double floating-point format can since it has 52-bit fractions"

from question

Is this x==(int)(float)x always true?

Space members outofmemory

Example

"Since the double takes more space than an int it occupies two of the members of the struct at the same time this may depend"

from question

C++ - Generic struct's members give wrong values when assigning doubles (but works fine with integers)

"Int takes less space than double on ram"

from question

A Quiz In Java (Average Guesses Made)

"Int would take up less space than a double"

from question

SQlite3 efficiency

"I don t understand how an int 63823 takes up less space than a double 1.0"

from question

Why is a double always 8 bytes and an int always 4 bytes, even if the int has more digits?

"You re getting the outofmemory because if you declare int 1000 the memory is allocated immediately additionally double take up more space than ints-an int representation will also save you space"

from question

Representing a 100K X 100K matrix in Java

General most-specific type

Example

"But this isn t true because double is more general than int and therefore int is the most-specific option in this case"

from question

Boxing to Object type to avoid compilation failure

"Double is more widened type than int"

from question

Why do I need to cast from double to int, but not vice versa?

"Double can in a way be seen as a more general type than int"

from question

Java - what's the difference between 2 little codes

Example

"Using an int to represent the address of a double stored somewhere and attempting to cast an int to a is undefined behaviour in c++;an int might not even be large enough to hold a pointer address"

from question

C++ pointer syntax problems

"The answer should be because 10000000000 is int and 10000000000 is int can not be stored because 10000000000 is int is more than 2 147 483 647 that is why you are getting the error int number too large to fix the issue make the issue double by appending d"

from question

Why does java give a int too large error despite the type of the variable being declared as a double?

Values strong idiomatic

Example

"When you load the double and int values into the array the double and int values lose identity as double or ints--the double and int values are autoboxed and stored as instances of the abstract number class"

from question

Not correctly casting back from generic type

"2 unless you have a strong reason to use int it is more idiomatic to use double for spreadsheet values"

from question

Excel macro VBA code to calculate average of a string of numbers

Object oggplayer iplay

Example

"Well int is assignable from object so i can export as with no problem;however if i exported an and instead it will fail because double is not assignable to int"

from question

MEF with open generic type

"Your oggplayer is an iplay double not an iplay int;you can t cast an iplay int to an iplay object or an iplay double to an iplay int like that"

from question

Casting Problem within generic types but the same types

Efficient modulus use

Example

"Because all int s can be upcast to a double without loss and the pow function on a double is no less efficient that that on an int"

from question

Why is math.pow not natively able to deal with ints? (floor/ceil, too)

"If you want the modulus use as it gives an int and would be more efficient than double arithmetic"

from question

Difference in Java, if any, between the % operator and the IEEEremainder() method?

Trickier easy infinities

Example

"The int cases are easy;the double case is trickier until you remember about infinities"

from question

How to determine if a number is positive or negative?

"Note that the double is much trickier than the int s"

from question

How to serialize this class?

Float significand types

Example

"This can also be applied to any implementations where long double has more than 63 bits of significand like powerpc or sparc there s a related question about calculating int arithmetic add 1 to uint_max and divide by n without overflow with also clever solutions"

from question

How to compute 2⁶⁴/n in C?

"X86 data types formats include much more than just int signed 2 s complement and unsigned binary int ieee float and double with sse and sse2 and x87 memory operands"

from question

Can we say that an x86 CPU has data types?

"Subtyping section where the the supertype relation is specified as the reflexive and transitive closure of the direct supertype relation 1 and the latter includes for primitive types double 1 float long 1 int so the method test int float is more specific than test long double because int is a subtype of long and float is a subtype of double"

from question

"But general 32-bit int multiply has worse throughput than packed- float multiply;because the simd alus optimized for float double only need 24x24-bit significand multipliers per 32 bits of vector element"

from question

Can we store a floating point in a regular register?

"If instead of the double i pass an int not much changes but that significantly;i have looked at the generated code for many variations of types and count of arguments passed to printf and consistently the first double or promoted float arguments are passed in xmmn and the integer int chars long regardless of signedness are passed in esi edx ecx r8d r9d and then the stack"

from question

Why does printf print random value with float and integer format specifier

Hardware penalty for

Example

"But if the int part is larger than the maximum 64-bit int the int part s not that simple and you need to convert biginteger to float double which hardware doesn t support"

from question

How to input and output real numbers in assembly language

"For most modern since the end of the last century linux-compatible architecture there is mostly no penalty for smaller int types;for float types there might be architectures only supporting float not double by hardware or double takes longer to process"

from question

Should I prefer to use small types of int (int8 and int16) in C++ code?

Long size_t zu

Example

"What is not stated is what happens to other larger types such as long long and long double and possibly long if it is longer than an int on the compiler"

from question

A question on C style ellipses and what the printf family argument size specifications actually means

"D takes an int not a size_t should be zu;g takes a double not a long double should be lg"

from question

LDBL_MIN returns 0, LDBL_MAX returns #QNAN in C

"In general casting from long to int is simpler than from double to int"

from question

Time to loop using long and double

Greater parameter area

Example

"This causes a referencing to a memory area that was not completely initialized with value passed as parameter to the printf because double size memory buffer area is greater than int size"

from question

Why does printf("%f",0); give undefined behavior?

"You re building up your total in a double and then doing this which is as radiodef said if temp s value is greater than integer.max_value int temp will be integer.max_value 2147483647 which when divided by 1000 with int division is ."

from question

Division by integer in Java yields incorrect value of 2147483

Number hashes expensive

Example

"In other words int is a number double is a number but int is not a double;you are trying to cast an instance of int to a reference double which cannot happen"

from question

Why does this cause a ClassCastException?

"While both double comparisons and hashes are more expensive than int s the number of comparisons is theta n log n while the number of hashes is o n"

from question

Remove smallest non-unique value from vector

Longer w

Example

"If they are double it takes much longer until w w 2 is 0 than with int"

from question

Big O notation (The complexity) of the following code?

"0.5 is not int is longer int try to convert to double"

from question

* (no title is found for this review)

Others

Example

Int is an integral type while double is not;from the comments it seems like op is asking for standard quote which defines const int as a compile-time constant but const double as not

from question

Constexpr vs const vs constexpr const

For any application-side date-time-values use an int unsigned a bigint signed a double signed or a decimal n p to simply store unix-epoch-deltas. make sure to show the resolution in a column name suffix if it is not seconds;examples mysql_row_created_at timestamp 3 default current_timestamp mysql_row_updated_at timestamp 3 default current_timestamp on update current_timestamp epoch int unsigned not null epoch_ms bigint not null epoch_us bigint not null epoch double not null epoch6 decimal 16 6 treat your database as much as dumb storage as possible

from question

Inserting NULL into MySQL timestamp

The modulo operator is meant to work with int not double;remember double numbers are floating-point numbers so there s always room for numerical error if you use them

from question

Checking text length is divisible by 2

Firstly need to call out in scala everything is an object there is no primitive type for your code it s int not like in java but scala need to compile to java bytecode to run in jvm since object consume more memory than primitive type so scala has specialized to solve this it means generate the primitive types parameter method when annotated with specialized with types;so for your code it s tuple2 and it s specialized for int long double chars boolean

from question

Weird behavior accessing tuple from Java

This is defined by the standard but it will in no way do what you are trying to convert an int to a string you need something like snprintf this is an example;also fabs returns double not int so you risk an overflow if you assign the value to an int

from question

Memory exception while trying to append char pointer to a fixed string

A double is a more precise type than an int in a general manner of speaking

from question

Why am I getting these errors in C#?

The assembly s that or generated code be it the fact that you can fit less 64-bit int in a sse register or round a double to a 64-bit int is slower

from question

Speed comparison with Project Euler: C vs Python vs Erlang vs Haskell

This is why the short overflew but the int did not;the first three outputs from both int and short are easy to explain -2147483648 your method returns an int so overflows 2.147483648e9 math.pow returns a double so formatted like this 2147483648 double casted to a long 2147483648 inside the possible range for long 32768 your method returns an int 32768 is inside the possible range for int 32768.0 math.pow returns a double so formatted like this 32768 double casted to an int 32768 is inside the possible range for int the hard to explain bit is the fourth result

from question

Byte is an object but his behaviour is different form int long and double you cannot use it for basic arithmetic operations;and even if you can assign an int number to a byte object like this

from question

Using Different Data types

Double is much bigger than int

from question

How to parse Int with a value more than 2147483647 from JSON in Swift

The reason you re seeing similar initial output from nextdouble given similar seeds is that because the computation of the next int only involves a multiplication and addition the magnitude of the next int is not much affected by differences in the lower bits;calculation of the next double involves computing a large int based on the seed and dividing it by another constant large int and the magnitude of the result is mostly affected by the magnitude of the int

from question

Why are initial random numbers similar when using similar seeds?

So to fix this either make min and max be double or leave them be int decreasing accuracy and print them as what there are namely int printf minimum d nmaximum d n min max;printing an int using a conversion specifier for double is not a good idea but invokes the infamous undefined behaviour

from question

How to find max&min in while loop - c

The problem is not that you can t convert a double to an int round accomplishes that just fine it s that you re trying to do division on an int padlength - length string;the error message is just telling you that int is not an instance of fractional the typeclass for numbers that can be divided

from question

Roughly speaking the default argument promotions are the default declaration narrower than an int are converted to int and float values are converted to double

from question

Can Function declaration or function prototype affects the working of the program

Suppose that int is 64 bits and double is an ieee double;then there are int not representable as double such as 2 53 +1 making the proposition false

from question

Is `N.0 == N && (int)N.0 == N` true where `N` is an integer literal in the range of int?

The f is because there s no need for the operation to be done in double -- i expect there s more chance of an implementation where 1.0 i would be significantly slower for no benefit software float emulation indifferent optimization than one where 1.0f is significantly slower for no benefit if double is faster than float that s because you have fp hardware so conversion between the two will be very fast so not introduce significant slowdown

from question

What is the significance of 0.0f when initializing (in C)?

For floats and double it s more difficult as with plain int as these may or not may be in the host machines byte-order

from question

How can I reorder the bytes of an integer?

And it shouldnt be too surprising that copying a double 3 strings and an int takes more time than copying a single double

from question

C++ sort vector<double> vs vector<Object> keyed on double member variable

Double s length is way more than int that s why you should be checking int first

from question

You can t convert a double to int because the double has more information than the int

from question

Binary Search with Primitive Types

The reason is simple double has different handling than new - mql4.56789 float the more than int et al

from question

Why is an information in my printf() function incorrect in MQL4?

I am guessing this is because modifying a double is a more complex operation than modifying an int

from question

Why is there no overload of Interlocked.Add that accepts Doubles as parameters?

As soon as the int needs more than 29 bits the atom is changed by the vm into a number type which is really represented as a 29 bit pointer to the actual 64 bit double precision float

from question

In Actionscript 3, why is the dynamic type of large int values Number?

A double has a higher maximum and presumably lower minimum than an int so there s no conversion necessary so you shouldn t experience any side effects of assigning a double an int so there s no need for an error

from question

Enable compiler warnings for implicit conversions (C#)

This is the reason for which if you use printf to print floats you don t need to say lf int the format strings and f is enough lf is needed for scanf however because that function stores a result and a float can be smaller than a double

from question

What is going on with bitwise operators and integer promotion?

It doesn t matter if second member would be int short or whatever - as long as it is smaller than double sizeof struct will be 16

from question

Structure size issue, claiming unrquired memory?

On many systems int is smaller than double so if that s the case on yours this is very likely to be the cause of your crash

from question

Why this realloc inside a function fails to execute with Intel compiler?

Bear in mind that if the double returned is larger or smaller than that which can be held in an int then the program behaviour is undefined

from question

What happens when storing a function's return type in a variable of a different type?

I understand that the compiler isn t happy because a double might be larger than an int can hold but this particular control is guaranteed to be a value from 1 to 10 so i know that it will be okay

from question

Casting from double to int - Warning in Visual C++/CLI

So on an 8 bit chars system if the sizeof int is 4 the maximum int is not necessarily 2 31-1 because the specification allows some of those bits to be used as padding. thus the only way to know for sure is to use limits.h;float double are also implementation defined although double is always bigger than a float

from question

Guarantateed minimum size/range of C data types

Its also worth noting that because num3 is an int when you divide it by 45 you will get an int not a percentage;to fix this issue make num3 a double or cast either num3 or 45 to a double before computing the division

from question

Calculate percentage and display in a texview android studio

Because a double is higher a double is higher will merge the int into the 0.0

from question

Sqrt(int_value + 0.0) -- Does it have a purpose?

On a 32-bit machine doing addition and comparison on 64-bit int types takes more instructions than doing the equivalent on double s

from question

Cause of comparing long slower than comparing double

If we use float data type in java we have to add f at the end of floating point literal as java assumes it to be double data type and gives an error why not do the same for short and byte as both have lower ranges than int

from question

Why do we use `f` for float datatypes but not for byte and short?

The prototype for main without arguments is int main void;the computation of pi 180 is performed as double which is less precise than long double

from question

Implementation of sine function in C not working

You will get 24 if pow 10 2 returns a double that is little less than 100 99.9999999998765 which when cast to int would be truncated resulting in 99 and thus you get

from question

Undesired output with modulo operator and ' pow '

Since double has more mantissa bits than int can have significant bits comparisions between double and int are precise in that regard

from question

Accuracy of double equality boolean when cast from Integer/int/Long/long

There is also the wrinkle that typically a double consists of more bits than an int does - so by printing in this way your code is interpreting random memory to the right of x as data

from question

Conversion from a base type to other pointers

Long long int is for large int cannot contain decimals;long double is for large double can contain decimals

from question

Whats the difference between long long int and long double?

This is because we are outside the range where adjacent int are exactly representible in double;of course a 64-bit double cannot represent all 64-bit int

from question

Overflow after an implicit cast

3 one way is rounding your double value before you use this int initalizer from this double will be passed for int initializer to one decimal place and then round result by following rule for this purpose you can use rounded method with floatingpointroundingrule .tonearestorawayfromzero which is default value for this parameter also you can use failable initalizer since if double is bigger then int can be code crashes

from question

How to cast from Double to Int?

Result summary numeric 5 million loops int 1.08 sec 20 faster than variant long 1.09 sec single 1.29 sec variant 1.34 sec double 1.37 sec numeric 25 million loops variant 6.16 sec variant is 9 faster than string string 6.76 sec numbers stored as text 5 million loops int 5.45 sec variant is 32 faster than int variant 7.99 sec therefore it it true arrays of non-variant data types are handled up to 20 faster than an array of variants

from question

What type of variable would be best for array?

Returning int as a double is the right thing to do here because int offers a much wider usefull number-range than a int could

from question

Why does Math.floor return a double?

A double will move farther then an int so you will get more interations with an int pointer anyway

from question

For-loop optimization using pointer

There is an implicit conversion from int to double but not the other way around;hence the implicit conversion from b to int is considered better and wins

from question

Conversion rules for overloaded conversion operators

Or a value for int a that is 6 less than double c

from question

Calling a method from the main to output a phrase in java

Your nummines calculation will always return 0 because when you cast a double that is less than 1 to an int it will be set to 0 which means that the statement in your while loop will only be run a single time hence only a single mine being placed

from question

Java Loops and Random numbers

That wouldn t work on platforms where a double is less than 64 bits but it would work on many platforms without 64-bit int

from question

How do I use two 32-bit integers as a 64-bit in C?

I should point out previously in the code the double is less than 1 i.e 0.987 and is then multiplied by the number of decimal places to make it a real positive int though it s stored as a double still at that point

from question

Value changing when converting from double to int

As far as i m aware so long as the spacing between two double is less than 2 then int values stored as double should be exact - and though 10 14 is pushing it this should be an exact int since 10 14 2 46.507 2 53

from question

Exp10 different to pow(10)

It seems to be that double is much more flexible than int

from question

Difference between int and double

Int comparison -eq is equal to -ne is not equal to -gt is greater than -ge is greater than or equal to -lt is less than -le is less than or equal to is less than within double parentheses is less than or equal to within double parentheses is greater than within double parentheses is greater than or equal to within double parentheses string comparison is equal to caution note the whitespace framing the

from question

Why "[ 1 > 2 ]" evaluates to True?

With the cast that bad stuff is undefined behavior most likely double is bigger than int and it overruns the memory for i

from question

Why does this define macro perform a cast?

One of long long and double is bigger than 3 int and a multiple of 8

from question

Specifying 64-bit alignment

A double is bigger than an int

from question

Creat random number in double format, eclipse stop working

A double is also probably bigger than an int

from question

Can methodSignatureForSelector: create a "catch-all" method signature?

Edit actually my solution does not work because double can be very big much bigger than int and also very small like fractions

from question

C++: how can I test if a number is power of ten?

A normal 3 will be treated as int but in the test function you are retrieving double which are bigger than an int on most platforms and you might end up reading wrong locations which inturn leads to exc_bad_access run time signal being generated

from question

Weird variable arguments issue in C

This is exactly like the decision table above except the command is the one with an interface and subclasses - you don t need to do the switch because the command action subclass already has that logic for you for example if you need to make different decisions based on which command at multiple points int your code you might even want something as fancy as double dispatch which i won t go into here

from question

Is there any way to avoid a conditional structure in this case?

The i cannot be converted to double and the d cannot be converted to int

from question

What is the difference between double? and int? for .Equals comparisons?

According to official flutter website only primitive types can be used int double bool string and stringlist so if you want to store binary data you should consider using sqlflite which is a self-contained implementation of the famous sqllite database for flutter

from question

Persisting Explicit Data vs Binary Data (Performance) in Shared Preferences

When you compare a double to a 64-bit int however there will be potential roundoff error if 32-bit int double is greater than 2 52

from question

What gets converted to what when comparing a double to an integer for identity?

F the int is 0 then the two double are equal;if the int is less than 0 then val1 is less than val2 and if if the int is greater than 0 val1 is greater than val2

from question

Java comparing double values - bigger number

A proposal can be compilation and execution as you can see i name the variable from their behavior making the code more clear contrarily to a b and c the right type for an index is size_t i do not use a literal int but i use sizeof in the for to follow the size of the array even if it is changed i use infinity to initialize min because any valid double is lower that it and -infinity to initialize max because any valid double is greater that it in case of an invalid input on scanf i flush all the line before to redo you can also just read a word if you prefer in the printf you do not need the l because printf cannot receive a float whose are transformed to double but the l is necessary in scanf to read a double

from question

Problem with finding minimum and maximum values in C

Don t use int32 it s generally best-practice to use int in this case;though for your situation double is more appropriate

from question

Variable Always Ending up to equal 0 C#

The value of an int chars constant containing more than one chars ab or containing a chars or escape sequence that does not map to a single-byte execution chars is implementation-defined;single and double quotes aren t interchangeable in c as they may be in some other languages

from question

C Char Switch inside a switch statement returns case expression not constant

I can t work with int or double and use numberformatter because input could be more than int or double max values

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How to add comma repeatedly in string after every third element

The number of base 6 digits shouldn t be more than double the number of digits of a base 10 number and a 32-bit int has at most 10 decimal digits so just define your array to have 25 elements

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Elements of a 1D array in C not showing after certain index

Even with a tighter bound you still need to handle more than int and double

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Can we combine two methods that differ largely based on type?

Alternatively if fieldsize is equal to sizeof double and sizeof double is greater than sizeof int then you are writing off the end of d_buffer and then something is corrupting your data

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C - Error with read() of a file, storage in an array, and printing output properly

The undefined behaviour as identified in other answers is explained on my intel platform with vc as that the f format specifier expects a double on the stack which is larger than an int so when the f format specifier retrieves the value the f format specifier retrieves more bytes than of an int and now assumes the next parameter at a diferent position on the stack causing z to be printed wrong it is not z that is printed

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Unusual behaviour in case of nested scope variables

Note how i cast the result to int which is better suited for years than the double precision returned by extract

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Condition on a timestamp column to select data for a year

The addition is performed using floating point arithmetic. with your particular values a s exact int value and the addition result s exact int value are not representable exactly with double and therefore the result is inexact

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C++ precision errors when adding double to long long

For example if coercing an int to a string box the int into an int and apply the rule for coercing an int to a string;or if coercing a string to a double apply the rule for coercing a string to a double then unbox the resulting double making sure the resulting double isn t actually null

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Websphere 7 JSF

So in your smartadder interface the method with signature add double a double b does not override the method add int a int b of your adder interface because double is wider than int

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Concept of functional interface

The most urgent one that comes to mind is that a double is wider than an int on your platform and garbage memory is read

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Memcpy with floats in C++

This conversion is legal because double are wider than int

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Do while loop, InputMismatchException

The widths are positive int not wider than the double significand 53 bits

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How to weigh up calculation error

Here is a function which takes in an int tries to subtracts 21 from it and returns the difference if the int is less than or equal to 21 or double the difference if it is greater than 21

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Int object not callable in condional function

If such a hardware unit is present floats double can be faster than int unless there is also hardware int support

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Float or Double?

Note that replacing elements of lists and double vectors is faster using rcpp while for int vectors base r solutions are preferred benchmark 1

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Is it legitimate to use Rcpp to speed up replacing elements of lists and vectors in iterative algorithm?

Also int are more appropriate than double numerics for this case of logical coercion

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Preserve names when coercing vector from binary to `as.numeric`?

You are doing linear programming on int which is more troublesome than with reals double

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Optimizing A Loan Portfolio On Weighted Average Criteria

Since double is greater that int and long int and long will be turned into double in double long and int double

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Unexpected result in long/int division

From significant digits and largest int by length for sas variables under windows | length | largest int | exponential | bytes | represented exactly | notation +---------+-----------------------+------------ | 3 | 8 192 | 2 13 | 4 | 2 097 152 | 2 21 | 5 | 536 870 912 | 2 29 | 6 | 137 438 953 472 | 2 37 | 7 | 35 184 372 088 832 | 2 45 | 8 | 9 007 199 254 740 992 | 2 53 so while all 16-digit hex values in c can fit distinctly in a 64-bit int not all such can distinctly fit in sas numeric those;the 64-bit double however is ieee standard and can deal with numbers up to 10 51 albeit with some loss of precision

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Convert hexadecimal characters (more than 16 bytes) to decimal number in SAS

Your are comparing them as string so by alphabetical order 1xx is before 9xx you need to compare then as double or int so use comparator.comparing double valueof or int valueof

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Find maximum and minimum double value in a list

Find the closest 32bit unsigned int that is larger than x;i use this to double the size of arrays the high-water mark

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The most useful user-made C-macros (in GCC, also C99)?

As for the last question floating point arithmetic particularly double precision is much more complex than int arithmetic so on a reasonably modern pipelined processor each instruction will take longer to execute

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G++, doubles, optimization and a big WTF

Double self.max int.min -9 223 372 036 854 775 808 float int.min -9 223 372 036 854 780 000 lower than int.min by 4096 thus not representable by int float int.min .nextup -9 223 371 487 098 960 000 greater than int.min by 549 755 820 032 thus representable by int int.max +9 223 372 036 854 775 807 float int.max +9 223 372 036 854 780 000 greater than int.max by 4096 thus not representable by int float int.max .nextdown +9 223 371 487 098 960 000 lower than int.max by 549 755 820 032 thus representable by int here s what that looks like in action which prints double nan as int nil double nan as int nil double nan as int nil double nan as int nil double + as int nil double +9 223 372 036 854 780 000 as int nil double +9 223 372 036 854 770 000 as int optional 9223372036854774784 double +1 as int optional 1 double +0.6 as int optional 0 double +0.5 as int optional 0 double +0.4 as int optional 0 double +0 as int optional 0 double +0 as int optional 0 double -0.4 as int optional 0 double -0.5 as int optional 0 double -0.6 as int optional 0 double -1 as int optional -1 double -1.5 as int optional -1 double -9 223 372 036 854 770 000 as int optional -9223372036854774784 double -9 223 372 036 854 780 000 as int nil double - as int nil

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Safe conversion of Float to Int?

Stick to consistent quoting and you should be ok create table trade prodid int references product productid transid int references transaction transactionid quantitypurchased int not null primary key transid prodid -- here ----- ------- -- ------;using double quotes makes an identifier in this case a column name case-sensitive

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M:N Relation SQL Error 00904 Invalid Identifier when Create Table

There is at least one argument for which the match is better than the match provided by any other viable function so when compiler checks first argument by first parameter of viable function it chooses that foo double double is the best match but when it checks the second argument it finds that foo int int is a better match

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Why does this overloaded functions is ambiguous?

The clash between int and double is even more drastic than between short int and int

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Wrong values inside of array

To ensure this the compiler uses the following rules if an operand is an int that is narrower than an int it undergoes integral promotion as described above to int or unsigned int. if the operands still do not match then the compiler finds the highest priority operand and implicitly converts the other operand to match. the priority of operands is as follows long double highest double float unsigned long long long long unsigned long long unsigned int int lowest in your case on of operands has type int and another one type size_t so max was promoted to type size_t and bit representation of -1 is the biggest possible size_t

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Longest string in an array of strings in C++

If you were to use an int on an older 8086 or on a 16 bit processor microcontroller an int might be 16 bits;a double is a little more standard

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How is the data type and size stored in memory?

On some real-world architectures double has stricter alignment requirements than int

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LLVM, unions, pointer casts and undefined behavior

I have a decent understanding on why there is an error because of how double has a higher precedence than int and how an int cant necessarily store a double value

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Type casting int to double java?

The way functions without prototypes are called is the arguments are promoted lesser than int int types to int and float s to double s and passed to the function in an implementation-defined way

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Passing parameters to function in different file (gcc)

X is of type chars chars to int is a better conversion than chars to;use double quotes to create a string literal

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Ambigious type conversion in constructor call

As stated by ed heal in the comments you should however use int to store dollars amount in cents or according to the smallest of your currency but multiply all amount by 100 to do accurate calculations;float and double are not totally precise because of their binary representation

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C++ beginner: Returning a single value. Issue: my amount is rounding and I don't want it to

Code should use abs with int or narrower fabs with double fabsf with float labs x with long etc

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Absolute value calculation

Xamples with floating point include some cray supercomputers which natively support double precision floating point aka double in c++ and all operations on single precision aka float in c++ are emulated in software;some older 32-bit x86 cpus also worked internally with 32-bit int and operations on 16-bit int required more clock cycles due to translation to from 32-bit this is not true with more modern 32-bit or 64bit x86 processors as they allow copying 16-bit int to from 32-bit registers and operating on they with fewer such penalties

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Performance cost of passing by value vs. by reference or by pointer?

In particular i assume i have a data frame set with a double column denoted as data and an int column named censorflag 0 value if censored 1 if not prefer this over boolean type

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Spark RDD Or SQL operations to compute conditional counts

And you ll be fine as long as int do not overflow;you are unnecessarily using double s not to mention math.pow isn t the most effective and straightforward way to compute the power of 2

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Possible loss of precision when multiplying by powers?

There is never never any reason whatsoever to square-bracket an int literal it s nothing more than a rather roundabout way to turn an int literal into a double since worksheet numeric values are variant double which is much better off done with an explicit conversion debug.print typename cdbl 42 double ...or even with a gasp type hint debug.print typename 42# double

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What does it mean if a number is written in square brackets like 

In my code i can work around the problem by using double or explicitely casting int to the template type t but when i try to work with i get into trouble for the methods which compare against int literals like the _div method above

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Make C++ automatically convert int to double

After further testing i realized any double that i cast to an int that is greater than integer.max_value just makes the int equal to integer.max_value. for example after further testing i realized if you try to cast a long to an int it seems to assign the int to a seemingly random number

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The specifics of casting to int, from double and long

When you use dim dynarray this creates an array of type variant which can hold anything string double object etc.;if you explicitly declare the type dim dynarray as int then it ll only allocate enough memory to hold int which is more efficient

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Trouble with Dynamic Arrays

If you use int between -128 and 127 you will get much better results than double from -128 to 127 because the former uses caches values the later does not

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Performance of the Number class

Byte takes less memory than double and int and provides better performance than bigger datatypes especially better than double

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Byte z[] = new byte; - What does this mean?

What i need to do it iterate over a list find the first int which is greater than 3 and is even then just double it and return it

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Difference between traditional imperative style of programming and functional style of programming

There s also no guarantee how floating point types will be represented so it would be a blind shot to assume that converting int to double or even long double for comparison will solve anything;even double may not be able to represent all int values depending on how much bits does int contain

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Why does C++ promote an int to a float when a float cannot represent all int values?

When you convert 4.8657 double to int.the int value will be 4.primitive int does not store decimal numbers.so you will lose 0.8657;in your case 0.7 is a double value floating point treated as double by default unless mentioned as float-0.7f

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Java JDK - possible lossy conversion from double to int

For example an int is more specific than a double because 1 can be promoted to 1.0

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Varargs Java Ambiguous Call

Double has range more than a 64-bit int but its precision is less dues to its representation since double is 64-bit as well it can t fit more actual values

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Find max integer size that a floating point type can handle without loss of precision

Console.read return an int that represent a chars so using if the user inputs 1 you may have a different value in your length variable;your static double main doesn t return a double

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Getting data from the user via the command line

Because on most machines sizeof double is bigger than sizeof int so there s not enough room for the array elements after a while it should be

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C segfault while using fscanf to make array from datas in a file

Furthermore the representation of type double is probably larger than that of type int in your system 8-byte double s and 4-byte int s are common

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Questions on C pointers

Also from the same javadoc regarding the conversion d integral the result is formatted as a decimal int so the format specifier you need for int is d which you are correctly using however an int does not have precision;a float or a double may have precision but int does not

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Why do I get an IllegalFormatPrecisionException when I try to format a String?

My opinion would be that these two should be of the same type and i really don t think it is realistic that these values would ever exceed the capacity of a 32 bit int if not 16 bit;not too mention that float and double are only approximations

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Inserting into two tables with one query

You are trying to assign which is a floating point value a double to an int variable;a double is not an exact int so in general an int variable cannot hold a double value

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Java JDK - possible lossy conversion from double to int

Here for what it s worth is a pipes-csv variant which just compresses each parsed row into an unboxed vector of int s by hand this easier than finding double which is what this csv is really storing using readint from the bytestring package.

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If you set u.y and read u.x on a target where int is less than 64 bits wide the remaining bits of the object representation of u.x might be anything including a trap representation;or if you set u.x and read u.y the value will depend on the details of how int and double are represented

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LLVM, unions, pointer casts and undefined behavior

Since int does not have nan and both +0 and -0 will be regarded as just 0 such a method is not really needed for functionality;the compare in double has the same effect as

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How come Java's Integer class does not have compare() method?

Because the double is represented in a totally different format from the int even if you assume they have the same sizes;a double uses a floating point format whereas the int does not

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Converting a double pointer to an int pointer

The int part is less than 2 and the double part is less than 3

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What is the best mask for decimal digits?

Spel evaluation error could not compare integer1 with double 2 and there is 1 more error in the log then there was an error where i was told that adding null and int type is not possible

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* (no title is found for this review)

Define a type for the precision parameter int define a return type double;it was nearly correct use double and not float because this is the default floating point number in kotlin

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Convert php function to kotlin

Why doesn t double print the entire number in second code- why is int more precise than double in that case

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Clarification on the usage of double datatype

About the inexactness problem you should be aware that double can be more inexact than int

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Convert to long long, pros and cons in C

Iam trying to retrieve the data from the table in json format with below query in sql server iam getting json response as where field id a id are declared as int in the database now i need those values should also be displayed within double quotes is there any way that we can handle in sql server 2016 itself to make clear all the field values irrespective of datatype should be enclosed in double quotes please do need full

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All Values in json response including numeric values need to be in double quotes

There are two major differences i int require less storage space - this may be significant for larger vectors and ii when interacting with external code that has greater type discipline conversion costs may come into play;as is for coercing to a new class and double technically isn t a class but rather a storage.mode

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As(x, 'double') and as.double(x) are inconsistent

I want to force users to enter a number and i m using that and it s working fine i want to force the user to make the input just two numbers int or double does not matter and those numbers must be between 0 and 20 or 0.0 and 20.0 e.g 0 or 0.0 1 or 1.5 1.0 etc . . . 20 or 20.0

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How to set input type and format in EditText using kotlin?

Adding to that int do not give you the decimal part of numbers so a number like 3.5 will get cut down to 3 using int;to fix this double is the way to go

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Why does this C computation involving exponents produce the wrong answer?

Based on the result returned by eval i need to choose between int and long types - smallest possible that will fit the result converted to a round number as it s double

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C++ template - evaluate static inline method inside template and pass result as template type argument

This can be either a literal of type o or a binary expression containing expressions that represent more specialised number types than o int being more specialised than double

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We could therefore iterate over every point if the coordinate system is based on int and not double and check this condition;if we are faced with double then a modified technique could be used to generate a contains method that will function correctly with high probability

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Algorithms by Sedgewick & Wayne, Exercise 1.2.3

Don t use m n on float or double;int unsigned makes more sense here

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Optimize a query

This is a problem because int doesn t support division via but rather supports int division via div to avoid a certain class of bugs that crops up in languages that conflate the two;you have a two obvious choices namely convert your int s to something that does support division double or generate random double s in the first place

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Division of two functions in Haskell

Edit to clarify - bitwise operators will cast any value to a number value to 32-bit int to be specific;most likely you want to use a logical or operator which is || double pipe not | which as you ve pointed is a bitwise or operator

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Using false with the bitwise OR operator

As mantissa for the double in such a case has less bits than the int then double is able to represent less digits and a loss of precision happens

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Converting really large int to double, loss of precision on some computer

Double class a special class representing a float value this is especially useful when using capped collections where you need to ensure your values are always floats;int is a bit trickier due to the fact that javascript represents all numbers as 64 bit floats meaning that the maximum int value is at a 53 bit

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Node.js - Abstracting mongoose model from domain model

Answer int check string is int or not if yes then give you int and otherwise nil;but float or double can convert any number string to respective float or double without giving nil

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Converting String to Int with Swift

I want to return different data types to abstract class bank but i can t do that .i did refer different return types of abstract method in java without casting this question because i have less experience in java therefore i did t understand that link s solution.please anyone help me to solve the issue code error test.java 18 error union is not abstract and does not override abstract method rateofinterest in bank class union extends bank test.java 19 error rateofinterest in union cannot override rateofinterest in bank float rateofinterest return type float is not compatible with int test.java 20 error incompatible types possible lossy conversion from double to float return 9.5

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How to Return Different data types in Abstract class of java

The problem is that i need to draw some simple objects points lines especially rectangles with double float decimal precision it doesn t matter with more precision than an int on a windows form i m using visual studio but i can t find anything

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C# double precision coordinates for drawing in Windows Form

If you want to map the range -128 to 127 to 0 to 255 i suggest you use an int which is easier to work with in java;as you have 32-bit or 64-bit registers using a short local variable doesn t help you as much as you might think unless you have a lot of t and i mean millions btw the byte code only allows for two sizes of local variables one slot boolean byte short float int reference and two slot long and double note reference uses one slot even on 64-bit jvms

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How does Java casting work?

To prevent the code from overflowing the int value space you should could change the type of res to double long anything that can hold higher values than int

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How to find the largest power of 2 less than the given number

For historical reasons you can not pass an int argument of smaller rank than int or a floating type of smaller rank than double to a variadic function

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Why printf behaves differently when we try to print character as a float and as a hexadecimal?

Method java.util.arraylist.add int java.lang.object is not applicable;actual argument double cannot be converted to int by method invocation conversion

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ArrayList<Object> // Adding Doubles/Strings at specified index gives an error

To slow down actors in greenfoot you usually add a counter like this if you need a finer resolution than int multiples you can use double instead of int

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* (no title is found for this review)

In this case the conversion between int - double takes lower precedence because a user-defined implicit conversion between int - value exists

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