C library functions - floor ()

C standard library - <math.h>

description

C library functiondouble floor (double x) Returns the largest integer value less than or equal to x.

statement

Here is the () function declaration floor.

double floor(double x)

parameter

• x - floating-point value.

return value

This function returns the largest integer value not greater than x.

Examples

The following example demonstrates the floor () function is used.

#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);
}

Let's compile and run the above program, which will result in the following:

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

C standard library - <math.h>