C floor() Prototype
double floor(double arg)
The floor() function takes a single argument and returns adouble type value.
It is defined in <math.h> header file.
For Example:
If 2.3 is passed to floor(), it will return 2.
The function prototypes for the long double and float versions of the floor() function are:
long double floorl(long double arg); float floorf(float arg);
Example: C floor() Function
#include <stdio.h>
#include <math.h>
int main() {
double num = -8.33;
double result = floor(num);
printf("Floor integer of %.2f = %.0f", num, result);
return 0;
}
Output
Floor integer of -8.33 = -9