C modf() Function
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C modf() Function
The modf() function breaks the given argument into two parts, one is integer and the other one is fractional.
Integer part is stored in the memory address pointed by the pointer which is passed as second argument in the function and the fractional part is returned by the function.
This function is defined in <math.h> header file.
Example
C Compiler
#include <stdio.h>
#include <math.h>
int main() {
double x, fractpart, intpart;
x = 619.5432;
fractpart = modf(x, &intpart);
printf("Integral part = %lf\n", intpart);
printf("Fraction Part = %lf \n", fractpart);
return 0;
}
Output
Integral part = 619.000000
Fraction Part = 0.543200
Syntax
double modf(double x, double *intpart)
Parameter Values
| Value | Type | Explanation |
|---|---|---|
| x | Required | Specifies the floating point value. |
| intpart | Required | Specifies the pointer to an object where the integral part is to be stored. |
Return Value
| Value | Explanation |
|---|---|
| Number | Returns the fraction component and sets integer to the integer component. |
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