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   abs.3p    ( 3 )

вернуть целочисленное абсолютное значение (return an integer absolute value)

Пролог (Prolog)

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.

Имя (Name)

abs — return an integer absolute value

Синопсис (Synopsis)

#include <stdlib.h>

int abs(int i);


Описание (Description)

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.1‐2017 defers to the ISO C standard.

The abs() function shall compute the absolute value of its integer operand, i. If the result cannot be represented, the behavior is undefined.


Возвращаемое значение (Return value)

The abs() function shall return the absolute value of its integer
       operand.

Ошибки (Error)

No errors are defined.

The following sections are informative.


Примеры (Examples)

None.

Использование в приложениях (Application usage)

In two's-complement representation, the absolute value of the
       negative integer with largest magnitude {INT_MIN} might not be
       representable.

Обоснование (Rationale)

None.

Будущие направления (Future directions)

None.

Смотри также (See also)

fabs(3p), labs(3p)

The Base Definitions volume of POSIX.1‐2017, stdlib.h(0p)