perror(3) - NetBSD Manual Pages

PERROR(3)                 NetBSD Programmer's Manual                 PERROR(3)


NAME

     perror - write error messages to standard error


LIBRARY

     Standard C Library (libc, -lc)


SYNOPSIS

     #include <stdio.h>

     void
     perror(const char *string);


DESCRIPTION

     The perror() function looks up the language-dependent 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 non-NULL it is prepended to the message string
     and separated from it by a colon and a space (`: ').  If string is NULL
     only the error message string is printed.

     The contents of the error message string is 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 C'').

NetBSD 1.5                       June 29, 1991                               1