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wmemcmp(3p) — Linux manual page

WMEMCMP(3P)             POSIX Programmer's ManualWMEMCMP(3P)

PROLOG        top

       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.

NAME        top

       wmemcmp — compare wide characters in memory

SYNOPSIS        top

       #include <wchar.h>       int wmemcmp(const wchar_t *ws1, const wchar_t *ws2, size_tn);

DESCRIPTION        top

       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.1‐2017 defers to the ISO C standard.       Thewmemcmp() function shall compare the firstn wide characters       of the object pointed to byws1 to the firstn wide characters of       the object pointed to byws2.  This function shall not be affected       by locale and allwchar_tvalues shall be treated identically. The       null wide character andwchar_tvalues not corresponding to valid       characters shall not be treated specially.       Ifn is zero, the application shall ensure thatws1 andws2 are       valid pointers, and the function shall behave as if the two       objects compare equal.

RETURN VALUE        top

       Thewmemcmp() function shall return an integer greater than, equal       to, or less than zero, respectively, as the object pointed to byws1 is greater than, equal to, or less than the object pointed to       byws2.

ERRORS        top

       No errors are defined.The following sections are informative.

EXAMPLES        top

       None.

APPLICATION USAGE        top

       None.

RATIONALE        top

       None.

FUTURE DIRECTIONS        top

       None.

SEE ALSO        top

wmemchr(3p),wmemcpy(3p),wmemmove(3p),wmemset(3p)       The Base Definitions volume of POSIX.1‐2017,wchar.h(0p)

COPYRIGHT        top

       Portions of this text are reprinted and reproduced in electronic       form from IEEE Std 1003.1-2017, Standard for Information       Technology -- Portable Operating System Interface (POSIX), The       Open Group Base Specifications Issue 7, 2018 Edition, Copyright       (C) 2018 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 athttp://www.opengroup.org/unix/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, seehttps://www.kernel.org/doc/man-pages/reporting_bugs.html .IEEE/The Open Group                2017WMEMCMP(3P)

Pages that refer to this page:wchar.h(0p), wmemchr(3p), wmemcpy(3p), wmemmove(3p), wmemset(3p)

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