Content-type: text/html Man page of perror

perror

Section: C Library Functions (3)
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NAME

perror - Writes a message explaining the current setting of errno  

LIBRARY

Standard C Library (libc.a, libc.so)  

SYNOPSIS

#include <stdio.h>

void perror(
        const char *string);  

STANDARDS

Interfaces documented on this reference page conform to industry standards as follows:

perror():  ISO C, POSIX.1, XPG4, XPG4-UNIX

Refer to the standards(5) reference page for more information about industry standards and associated tags.  

PARAMETERS

Points to a string containing the name of the program that caused the error.  

DESCRIPTION

The perror() function writes a message on the standard error stream that describes the current setting of the external variable errno. The error message includes the string pointed to by the string parameter, followed by a : (colon), a blank, the system message string, and a newline character. The string parameter string should point to the name of the program that caused the error.

To get the system error message string for use by a program, as opposed to displaying it on standard error, use the strerror() function. For more information, see strerror(3).  

RELATED INFORMATION

Routines: printf(3), strerror(3)

Standards: standards(5) delim off


 

Index

NAME
LIBRARY
SYNOPSIS
STANDARDS
PARAMETERS
DESCRIPTION
RELATED INFORMATION

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Time: 02:42:06 GMT, October 02, 2010