fabs, fabsl
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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++ | |
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fabs |
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fabsl |
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