- NAME
-
modf - extract signed integral and fractional values from floating-point number.
- SYNOPSIS
#include <math.h>
double modf(double x, double *iptr);- DESCRIPTION
-
The modf() function breaks the argument x into an integral part and a fractional part, each of which has the same sign as x. The integral part is stored in iptr.
|
Warning
|
You’ll also need to link the program against the math library (see example below) using the -lm compile/link option.
|
- RETURN VALUE
-
The modf() function returns the fractional part of x.
- SEE ALSO
-
ldexp, frexp
- EXAMPLE
link:src/modf.c[role=include]- OUTPUT
$ gcc -Wall -lm modf.c $ ./a.out 3.141593 = 3.000000 + 0.141593