perror(3p) [suse man page]

PERROR(3P)						     POSIX Programmer's Manual							PERROR(3P)

PROLOG

       This  manual page is part of the POSIX Programmer's Manual.  The Linux implementation of this interface may differ (consult the correspond-
       ing Linux manual page for details of Linux behavior), or the interface may not be implemented on Linux.

NAME

       perror - write error messages to standard error

SYNOPSIS

       #include <stdio.h>

       void perror(const char *s);

DESCRIPTION

       The perror() function shall map the error number accessed through the symbol errno to a language-dependent error message,  which  shall	be
       written to the standard error stream as follows:

	* First  (if  s  is  not  a null pointer and the character pointed to by s is not the null byte), the string pointed to by s followed by a
	  colon and a <space>.

	* Then an error message string followed by a <newline>.

       The contents of the error message strings shall be the same as those returned by strerror() with argument errno.

       The perror() function shall mark the file associated with the standard error stream as having been written (st_ctime, st_mtime  marked  for
       update) at some time between its successful completion and exit(), abort(), or the completion of fflush() or fclose() on stderr.

       The perror() function shall not change the orientation of the standard error stream.

RETURN VALUE

       The perror() function shall not return a value.

ERRORS

       No errors are defined.

       The following sections are informative.

EXAMPLES

   Printing an Error Message for a Function
       The  following example replaces bufptr with a buffer that is the necessary size. If an error occurs, the perror() function prints a message
       and the program exits.

	      #include <stdio.h>
	      #include <stdlib.h>
	      ...
	      char *bufptr;
	      size_t szbuf;
	      ...
	      if ((bufptr = malloc(szbuf)) == NULL) {
		  perror("malloc"); exit(2);
	      }
	      ...

APPLICATION USAGE

       None.

RATIONALE

       None.

FUTURE DIRECTIONS

       None.

SEE ALSO

       strerror(), the Base Definitions volume of IEEE Std 1003.1-2001, <stdio.h>

COPYRIGHT

       Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2003 Edition, Standard for Information Technol-
       ogy -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of
       Electrical and Electronics Engineers, Inc and The Open Group. In the event of any discrepancy between this version and  the  original  IEEE
       and  The  Open Group Standard, the original IEEE and The Open Group Standard is the referee document. The original Standard can be obtained
       online at http://www.opengroup.org/unix/online.html .

IEEE
/The Open Group						       2003								PERROR(3P)

Check Out this Related Man Page

FPUTWS(3P)						     POSIX Programmer's Manual							FPUTWS(3P)

PROLOG

       This  manual page is part of the POSIX Programmer's Manual.  The Linux implementation of this interface may differ (consult the correspond-
       ing Linux manual page for details of Linux behavior), or the interface may not be implemented on Linux.

NAME

       fputws - put a wide-character string on a stream

SYNOPSIS

       #include <stdio.h>
       #include <wchar.h>

       int fputws(const wchar_t *restrict ws, FILE *restrict stream);

DESCRIPTION

       The fputws() function shall write a character string corresponding to the (null-terminated) wide-character string pointed to by ws  to  the
       stream pointed to by stream. No character corresponding to the terminating null wide-character code shall be written.

       The  st_ctime and st_mtime fields of the file shall be marked for update between the successful execution of fputws() and the next success-
       ful completion of a call to fflush() or fclose() on the same stream or a call to exit() or abort().

RETURN VALUE

       Upon successful completion, fputws() shall return a non-negative number. Otherwise, it shall return -1, set  an	error  indicator  for  the
       stream,	and set errno to indicate the error.

ERRORS

       Refer to fputwc().

       The following sections are informative.

EXAMPLES

       None.

APPLICATION USAGE

       The fputws() function does not append a <newline>.

RATIONALE

       None.

FUTURE DIRECTIONS

       None.

SEE ALSO

       fopen(), the Base Definitions volume of IEEE Std 1003.1-2001, <stdio.h>, <wchar.h>

COPYRIGHT

       Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2003 Edition, Standard for Information Technol-
       ogy -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of
       Electrical  and	Electronics  Engineers, Inc and The Open Group. In the event of any discrepancy between this version and the original IEEE
       and The Open Group Standard, the original IEEE and The Open Group Standard is the referee document. The original Standard can  be  obtained
       online at http://www.opengroup.org/unix/online.html .

IEEE
/The Open Group						       2003								FPUTWS(3P)

Linux and UNIX Man Pages

perror(3p) [suse man page]

Check Out this Related Man Page