WCSNCMP(3)                 POSIX Programmer's Manual                WCSNCMP(3)



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


NNAAMMEE
       wcsncmp -- compare part of two wide-character strings

SSYYNNOOPPSSIISS
       #include <wchar.h>

       int wcsncmp(const wchar_t *_w_s_1, const wchar_t *_w_s_2, size_t _n);

DDEESSCCRRIIPPTTIIOONN
       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 _w_c_s_n_c_m_p() 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 _w_s_1 to the array pointed to
       by _w_s_2.

       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 being compared.

RREETTUURRNN VVAALLUUEE
       Upon successful completion, _w_c_s_n_c_m_p() shall return an integer greater
       than, equal to, or less than 0, if the possibly null-terminated array
       pointed to by _w_s_1 is greater than, equal to, or less than the possibly
       null-terminated array pointed to by _w_s_2, respectively.

EERRRROORRSS
       No errors are defined.

       _T_h_e _f_o_l_l_o_w_i_n_g _s_e_c_t_i_o_n_s _a_r_e _i_n_f_o_r_m_a_t_i_v_e_.

EEXXAAMMPPLLEESS
       None.

AAPPPPLLIICCAATTIIOONN UUSSAAGGEE
       None.

RRAATTIIOONNAALLEE
       None.

FFUUTTUURREE DDIIRREECCTTIIOONNSS
       None.

SSEEEE AALLSSOO
       _w_c_s_c_a_s_e_c_m_p(), _w_c_s_c_m_p()

       The Base Definitions volume of POSIX.1-2008, <<wwcchhaarr..hh>>

CCOOPPYYRRIIGGHHTT
       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                           WCSNCMP(3)
