User manual

MPLAB
®
XC8 C Compiler User’s Guide
DS52053B-page 332  2012 Microchip Technology Inc.
FABS
Synopsis
#include <math.h>
double fabs (double f)
Description
This routine returns the absolute value of its double argument.
Example
#include <stdio.h>
#include <math.h>
void
main (void)
{
printf("%f %f\n", fabs(1.5), fabs(-1.5));
}
See Also
abs(), labs()
FLASH ROUTINES
Description
These functions are now supplied in the peripheral library. See the peripheral library
documentation for full information on this library function.
FLOOR
Synopsis
#include <math.h>
double floor (double f)
Description
This routine returns the largest whole number not greater than f.
Example
#include <stdio.h>
#include <math.h>
void
main (void)
{
printf("%f\n", floor( 1.5 ));
printf("%f\n", floor( -1.5));
}