Microchip Technology XC8 Standard Compiler (Workstation) SW006021-1 SW006021-1 ユーザーズマニュアル
製品コード
SW006021-1
MPLAB
®
XC8 C Compiler User’s Guide
DS52053B-page 340
2012 Microchip Technology Inc.
Return Value
This routine returns a copy of the buffer into which the result is written.
LABS
Synopsis
#include <stdlib.h>
int labs (long int j)
Description
The
labs()
function returns the absolute value of long value
j
.
Example
#include <stdio.h>
#include <stdlib.h>
void
main (void)
{
long int a = -5;
printf("The absolute value of %ld is %ld\n", a, labs(a));
}
See Also
abs()
Return Value
The absolute value of
j
.
LDEXP
Synopsis
#include <math.h>
double ldexp (double f, int i)
Description
The
ldexp()
function performs the inverse of frexp() operation; the integer
i
is
added to the exponent of the floating-point
f
and the resultant returned.
Example
#include <math.h>
#include <stdio.h>
void
main (void)
{
double f;
f = ldexp(1.0, 10);
printf("1.0 * 2^10 = %f\n", f);
}
See Also
frexp()