WCSNCMP(P) POSIX Programmer's Manual WCSNCMP(P)
wcsncmp - compare part of two wide-character strings
int wcsncmp(const wchar_t *ws1, const wchar_t *ws2, size_t n);
The wcsncmp() function shall compare not more than n wide-character codes (wide-character
codes that follow a null wide-character code are not compared) from the array pointed to
by ws1 to the array pointed to by ws2.
The sign of a non-zero return value shall be determined by the sign of the difference
between the values of the first pair of wide-character codes that differ in the objects
Upon successful completion, wcsncmp() shall return an integer greater than, equal to, or
less than 0, if the possibly null-terminated array pointed to by ws1 is greater than,
equal to, or less than the possibly null-terminated array pointed to by ws2, respectively.
No errors are defined.
The following sections are informative.
wcscmp() , the Base Definitions volume of IEEE Std 1003.1-2001, <wchar.h>
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, 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 orig-
inal Standard can be obtained online at http://www.opengroup.org/unix/online.html .
IEEE/The Open Group 2003 WCSNCMP(P)