| Item | Value |
| Header file | math.h |
| Declaratin | float modff(float num, float *i); double modf(double num, double *i); long double modfl(long double num, long double *i); |
| Function | decomposes num into its integer and fractional parts. |
| Return | returns the fractional portion and place the integer part in the variable pointed to by i. |
#include <math.h>
#include <stdio.h>
int main(void)
{
double i;
double f;
f = modf(10.123, &i);
printf("%f %f",i , f);
}
10.000000 0.123000
| 19.51.modf | ||||
| 19.51.1. | modf | |||