posix man page for strncat

STRNCAT(3P)						     POSIX Programmer's Manual						       STRNCAT(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
       strncat -- concatenate a string with part of another

SYNOPSIS
       #include <string.h>

       char *strncat(char *restrict s1, const char *restrict s2, size_t n);

DESCRIPTION
       The functionality described on this reference page is aligned with the ISO C standard. Any conflict between the requirements described here
       and the ISO C standard is unintentional. This volume of POSIX.1-2008 defers to the ISO C standard.

       The  strncat()  function  shall	append	not  more  than n bytes (a NUL character and bytes that follow it are not appended) from the array
       pointed to by s2 to the end of the string pointed to by s1.  The initial byte of s2 overwrites the NUL character at the end of s1.  A  ter-
       minating NUL character is always appended to the result. If copying takes place between objects that overlap, the behavior is undefined.

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

ERRORS
       No errors are defined.

       The following sections are informative.

EXAMPLES
       None.

APPLICATION USAGE
       None.

RATIONALE
       None.

FUTURE DIRECTIONS
       None.

SEE ALSO
       strcat()

       The Base Definitions volume of POSIX.1-2008, <string.h>

COPYRIGHT
       Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2013 Edition, Standard for Information Technol-
       ogy -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 7, Copyright (C)  2013  by	the  Institute	of
       Electrical and Electronics Engineers, Inc and The Open Group.  (This is POSIX.1-2008 with the 2013 Technical Corrigendum 1 applied.) 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 Stan-
       dard is the referee document. The original Standard can be obtained online at http://www.unix.org/online.html .

       Any typographical or formatting errors that appear in this page are most likely to have been introduced during the conversion of the source
       files to man page format. To report such errors, see https://www.kernel.org/doc/man-pages/reporting_bugs.html .

IEEE
/The Open Group						       2013							       STRNCAT(3P)