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STRNCAT(3P) POSIX Programmer's Manual STRNCAT(3P)
This manual page is part of the POSIX Programmer's Manual. The Linux
implementation of this interface may differ (consult the
corresponding Linux manual page for details of Linux behavior), or
the interface may not be implemented on Linux.
strncat — concatenate a string with part of another
#include <string.h>
char *strncat(char *restrict s1, const char *restrict s2, size_t n);
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
terminating NUL character is always appended to the result. If
copying takes place between objects that overlap, the behavior is
undefined.
The strncat() function shall return s1; no return value shall be
reserved to indicate an error.
No errors are defined.
The following sections are informative.
None.
None.
None.
None.
strcat(3p)
The Base Definitions volume of POSIX.1‐2008, string.h(0p)
Portions of this text are reprinted and reproduced in electronic form
from IEEE Std 1003.1, 2013 Edition, Standard for Information
Technology -- 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 Standard 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)
Pages that refer to this page: string.h(0p), strcat(3p)