сравнить широкие символы в памяти (compare wide characters in memory)
Пролог (Prolog)
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.
Имя (Name)
wmemcmp — compare wide characters in memory
Синопсис (Synopsis)
#include <wchar.h>
int wmemcmp(const wchar_t *ws1, const wchar_t *ws2, size_t n);
Описание (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.1‐2017 defers to the ISO C standard.
The wmemcmp() function shall compare the first n wide characters
of the object pointed to by ws1 to the first n wide characters of
the object pointed to by ws2. This function shall not be
affected by locale and all wchar_t values shall be treated
identically. The null wide character and wchar_t values not
corresponding to valid characters shall not be treated specially.
If n is zero, the application shall ensure that ws1 and ws2 are
valid pointers, and the function shall behave as if the two
objects compare equal.
Возвращаемое значение (Return value)
The wmemcmp() function shall return an integer greater than,
equal to, or less than zero, respectively, as the object pointed
to by ws1 is greater than, equal to, or less than the object
pointed to by ws2.
Ошибки (Error)
No errors are defined.
The following sections are informative.
Примеры (Examples)
None.
Использование в приложениях (Application usage)
None.
Обоснование (Rationale)
None.
Будущие направления (Future directions)
None.
Смотри также (See also)
wmemchr(3p), wmemcpy(3p), wmemmove(3p), wmemset(3p)
The Base Definitions volume of POSIX.1‐2017, wchar.h(0p)
