floor

Name

floor, floorf, floorl
- Returns the largest integral value not greater than argument

Library

libm.lib

Synopsis

#include <math.h>

double floor (double x);

float floorf (float x);

long double floorl (long double x);

Return values

x is integral or infinite, x itself is returned.

Detailed description

The floor, floorf, and floorl functions return the largest integral value less than or equal to x, expressed as a floating-point number.

Examples

#include <math.h>
int main( void )
{
   double y;
   y = floor( 2.8 );
   printf( "The floor of 2.8 is %f\n", y );
   y = floorf( 2.8 );
   printf( "The floorf of 2.8 is %f\n", y );
   y = floorl( 2.8 );
   printf( "The floorl of 2.8 is %f\n", y );
}

Output

The floor  of 2.8 is 2.000000
The floorf of 2.8 is 2.000000
The floorl of 2.8 is 2.000000

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