fabs, fabsl
Remonter à Math.h - Index
Header File
math.h
Category
Math Routines
Prototype
double fabs(double x);
long double fabsl(long double x);
Description
Returns the absolute value of a floating-point number.
fabs calculates the absolute value of x, a double. fabsl is the long double version; it takes a long double argument and returns a long double result.
Return Value
fabs and fabsl return the absolute value of x.
Example
#include <stdio.h>
#include <math.h>
int main(void)
{
float number = -1234.0;
printf("number: %f absolute value: %f\n", number, fabs(number));
return 0;
}
Portability
POSIX | Win32 | ANSI C | ANSI C++ | |
---|---|---|---|---|
fabs |
+ |
+ |
+ |
+ |
fabsl |
+ |
+ |
+ |