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labs---long integer absolute value

Synopsis
#include <stdlib.h>
long labs(long i);

Description
labs returns the absolute value of i (also called the magnitude of i). That is, if i is negative, the result is the opposite of i, but if i is nonnegative the result is i.

The similar function abs uses and returns int rather than long values.


Returns
The result is a nonnegative long integer.


Portability
labs is ANSI.

No supporting OS subroutine calls are required.



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