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



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

NAME
       strcat - concatenate two strings

SYNOPSIS
       #include <string.h>

       char *strcat(char *restrict s1, const char *restrict s2);


DESCRIPTION
       The strcat() function shall append a copy of the string pointed to by s2 (including the terminating null byte) to the end
       of the string pointed to by s1. The initial byte of s2 overwrites the null byte at the end of s1. If copying takes  place
       between objects that overlap, the behavior is undefined.

RETURN VALUE
       The strcat() function shall return s1; no return value is reserved to indicate an error.

ERRORS
       No errors are defined.

       The following sections are informative.

EXAMPLES
       None.

APPLICATION USAGE
       This  issue is aligned with the ISO C standard; this does not affect compatibility with XPG3 applications. Reliable error
       detection by this function was never guaranteed.

RATIONALE
       None.

FUTURE DIRECTIONS
       None.

SEE ALSO
       strncat(), the Base Definitions volume of IEEE Std 1003.1-2001, <string.h>

COPYRIGHT
       Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2003  Edition,  Standard  for
       Information  Technology -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 6, Copy-
       right (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.open-
       group.org/unix/online.html .



IEEE/The Open Group                                           2003                                                    STRCAT(3P)