Calculates the absolute value of a long integer.
#include <stdlib.h> | Required only for function declarations | |
#include <math.h> |
long labs( long n );
n | Long-integer value |
The labs function produces the absolute value of its long-integer argument n.
The labs function returns the absolute value of its argument. There is no error return.
Standards:ANSI
16-Bit:DOS, QWIN, WIN, WIN DLL
32-Bit:DOS32X
/* ABS.C: This program computes and displays the absolute values of
* several numbers.
*/
#include <stdio.h>
#include <math.h>
#include <stdlib.h>
void main( void )
{
int ix = -4, iy;
long lx = -41567L, ly;
double dx = -3.141593, dy;
iy = abs( ix );
printf( "The absolute value of %d is %d\n", ix, iy);
ly = labs( lx );
printf( "The absolute value of %ld is %ld\n", lx, ly);
dy = fabs( dx );
printf( "The absolute value of %f is %f\n", dx, dy );
}
The absolute value of -4 is 4
The absolute value of -41567 is 41567
The absolute value of -3.141593 is 3.141593