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#include <math.h>
/* or */
#include <stdlib.h>

long labs (
  long val);     /* number to take absolute value of */

The labs function determines the absolute value of the long integer val.

Return Value

The labs function returns the absolute value of val.

See Also

abs, fabs

#include <math.h>
#include <stdio.h> /* for printf */

void tst_labs (void) {
  long x;
  long y;

  x = -1234567L;
  y = labs (x);

  printf ("LABS(%ld) = %ld\n", x, y);
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