Manpage of PERROR
PERROR
Section: NEWLIB (3)
Updated: 2005 Feb 23
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NAME
3.30 `perror'--print an error message on standard error
SYNOPSIS
#include <stdio.h>
void perror(char *PREFIX);
void _perror_r(struct _reent *REENT, char *PREFIX);
DESCRIPTION
Use `perror' to print (on standard error) an error message
corresponding to the current value of the global variable `errno'.
Unless you use `NULL' as the value of the argument PREFIX, the error
message will begin with the string at PREFIX, followed by a colon and a
space (`: '). The remainder of the error message is one of the strings
described for `strerror'.
The alternate function `_perror_r' is a reentrant version. The
extra argument REENT is a pointer to a reentrancy structure.
RETURNS
`perror' returns no result.
PORTABILITY
ANSI C requires `perror', but the strings issued vary from one
implementation to another.
Supporting OS subroutines required: `close', `fstat', `isatty',
`lseek', `read', `sbrk', `write'.
SEE ALSO
perror
is part of the
libc
library.
The full documentation for
libc
is maintained as a Texinfo manual. If
info
and
libc
are properly installed at your site, the command
-
info libc
will give you access to the complete manual.
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- RETURNS
-
- PORTABILITY
-
- SEE ALSO
-
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