_sys_errlist

Remonter à errno.h - Index

Header File

errno.h

Syntax

extern char * _sys_errlist[ ];

Description

_sys_errlist is used by perror to print error messages when certain library routines fail to accomplish their appointed tasks.

To provide more control over message formatting, the array of message strings is provided in _sys_errlist. You can use errno as an index into the array to find the string corresponding to the error number. The string does not include any newline character.

Example

printf("%s\n", _sys_errlist[ENOPATH]);

This code statement that uses the Mnemonic ENOPATH will output the string "Path not found".

The following table gives mnemonics and their meanings for the values stored in _sys_errlist. The list is alphabetically ordered for ease your reading convenience. For the numerical ordering, see the header file errno.h.

Mnemonic	Description
E2BIG	Arg list too long
EACCES	Permission denied
EBADF	Bad file number
ECHILD	No child process
ECONTR	Memory blocks destroyed
ECURDIR	Attempt to remove CurDir
EDEADLOCK	Locking violation
EDOM	Math argument
EEXIST	File already exists
EFAULT	Unknown error
EINTR	Interrupted function call
EINVACC	Invalid access code
EINVAL	Invalid argument
EINVDAT	Invalid data
EINVDRV	Invalid drive specified
EINVENV	Invalid environment
EINVFMT	Invalid format
EINVFNC	Invalid function number
EINVMEM	Invalid memory block address
EIO	input/output error
EMFILE	Too many open files
ENAMETOOLONG	ENAMETOOLONG
ENFILE	Too many open files
ENMFILE	No more files
ENODEV	No such device
ENOENT	No such file or directory
ENOEXEC	Exec format error
ENOFILE	File not found
ENOMEM	Not enough core
ENOPATH	Path not found
ENOSPC	No space left on device
ENOTSAM	Not same device
ENXIO	No such device or address
EPERM	Operation not permitted
EPIPE	Broken pipe
ERANGE	Result too large
EROFS	Read-only file system
ESPIPE	Illegal seek
EXDEV	Cross-device link
EZERO	Error 0

Example

#include <errno.h>
#include <stdio.h>


int main()
{
   int i = 0;

   // Global value _sys_nerr also defined in errno.h
   while(i < _sys_nerr) {
        printf("%s\n", _sys_errlist[i]);
        i++;
   }
   return 0;
}