imaxabs man page


This manual page is part of the POSIX Programmer's Manual. The Linux implementation of this interface may differ (consult the corresponding Linux manual page for details of Linux behavior), or the interface may not be implemented on Linux.

imaxabs — return absolute value


#include <inttypes.h>

intmax_t imaxabs(intmax_t j);


The functionality described on this reference page is aligned with the ISO C standard. Any conflict between the requirements described here and the ISO C standard is unintentional. This volume of POSIX.1‐2008 defers to the ISO C standard.

The imaxabs() function shall compute the absolute value of an integer j. If the result cannot be represented, the behavior is undefined.

Return Value

The imaxabs() function shall return the absolute value.


No errors are defined.

The following sections are informative.

Application Usage

The absolute value of the most negative number cannot be represented in two's complement.

See Also


The Base Definitions volume of POSIX.1‐2008, <inttypes.h>


2013 IEEE/The Open Group POSIX Programmer's Manual