floor() - math.h

The C library function double floor(double x) returns the largest integer value less than or equal to x.

Syntax

double floor(double x)

Example

#include <stdio.h>
#include <math.h>

int main ()
{
   float val1, val2, val3, val4;

   val1 = 1.6;
   val2 = 1.2;
   val3 = 2.8;
   val4 = 2.3;

   printf("Value1 = %.1lf\n", floor(val1));
   printf("Value2 = %.1lf\n", floor(val2));
   printf("Value3 = %.1lf\n", floor(val3));
   printf("Value4 = %.1lf\n", floor(val4));
   
   return(0);
}

Output / Return Value

Value1 = 1.0
Value2 = 1.0
Value3 = 2.0
Value4 = 2.0

Limitations

Alternatives / See Also

Reference