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#include <math.h> double fmod(double x, double y); |
This function computes the remainder of x/y, which is
x - iy for some integer i such that
iy < x < (i+1)y.
The remainder of x/y. If x is Inf or
NaN, the return value is NaN and errno is set to
EDOM. If y is zero, the return value is zero (but
errno is not changed).
| ANSI/ISO C | C89; C99 |
| POSIX | 1003.2-1992; 1003.1-2001 |