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man pages section 3: Library Interfaces and Headers

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Updated: Thursday, June 13, 2019
 
 

errno.h(3HEAD)

Name

errno.h, errno - system error numbers

Synopsis

#include <errno.h> 

Description

The <errno.h> header provides a declaration for errno and gives positive values for the symbolic constants listed on the Intro(2) manual page.

Usage

Values for errno are required to be distinct positive values rather than non-zero values.

Attributes

See attributes(7) for descriptions of the following attributes:

ATTRIBUTE TYPE
ATTRIBUTE VALUE
Interface Stability
Committed
Standard

See Also

Intro(2), attributes(7), standards(7)