получить длину широкой подстроки (get the length of a wide substring)
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)
wcsspn — get the length of a wide substring
Синопсис (Synopsis)
#include <wchar.h>
size_t wcsspn(const wchar_t *ws1, const wchar_t *ws2);
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 wcsspn() function shall compute the length (in wide
characters) of the maximum initial segment of the wide-character
string pointed to by ws1 which consists entirely of wide-
character codes from the wide-character string pointed to by ws2.
Возвращаемое значение (Return value)
The wcsspn() function shall return the length of the initial
substring of ws1; no return value is reserved to indicate an
error.
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)
wcscspn(3p)
The Base Definitions volume of POSIX.1‐2017, wchar.h(0p)
