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PERROR(3)	       FreeBSD Library Functions Manual		     PERROR(3)

NAME
     perror -- write error messages to standard	error

SYNOPSIS
     #include <stdio.h>

     void
     perror(const char *string);

DESCRIPTION
     The perror() function looks up the	error message string affiliated	with
     an	error number and writes	it, followed by	a new-line, to the standard
     error stream.

     If	the argument string is not the NULL pointer and	is not zero length, it
     is	prepended to the message string	and separated from it by a colon and a
     space (`: ').  Otherwise, only the	error message string is	printed.

     The contents of the error message string are the same as those returned
     by	strerror() with	argument errno.

SEE ALSO
     intro(2), psignal(3), setlocale(3), strerror(3)

STANDARDS
     The perror() function conforms to ANSI X3.159-1989	("ANSI C89").

HISTORY
     The perror() function first appeared in Version 4 AT&T UNIX.

CAVEATS
     On	systems	other than OpenBSD, the	LC_MESSAGES locale(1) category can
     cause different strings to	be printed instead of the normal error mes-
     sages; see	CAVEATS	in setlocale(3)	for details.

FreeBSD	13.0			 May 16, 2019			  FreeBSD 13.0

NAME | SYNOPSIS | DESCRIPTION | SEE ALSO | STANDARDS | HISTORY | CAVEATS

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