скопировать строку фиксированного размера широких символов, вернув указатель на ее конец (copy a fixed-size string of wide characters, returning a pointer to its end)
Имя (Name)
wcpncpy - copy a fixed-size string of wide characters, returning
a pointer to its end
Синопсис (Synopsis)
#include <wchar.h>
wchar_t *wcpncpy(wchar_t *restrict dest, const wchar_t *restrict src,
size_t n);
Feature Test Macro Requirements for glibc (see
feature_test_macros(7)):
wcpncpy():
Since glibc 2.10:
_POSIX_C_SOURCE >= 200809L
Before glibc 2.10:
_GNU_SOURCE
Описание (Description)
The wcpncpy() function is the wide-character equivalent of the
stpncpy(3) function. It copies at most n wide characters from
the wide-character string pointed to by src, including the
terminating null wide (L'\0'), to the array pointed to by dest.
Exactly n wide characters are written at dest. If the length
wcslen(src) is smaller than n, the remaining wide characters in
the array pointed to by dest are filled with L'\0' characters.
If the length wcslen(src) is greater than or equal to n, the
string pointed to by dest will not be L'\0' terminated.
The strings may not overlap.
The programmer must ensure that there is room for at least n wide
characters at dest.
Возвращаемое значение (Return value)
wcpncpy() returns a pointer to the last wide character written,
that is, dest+n-1.
Атрибуты (Attributes)
For an explanation of the terms used in this section, see
attributes(7).
┌──────────────────────────────────────┬───────────────┬─────────┐
│Interface │ Attribute │ Value │
├──────────────────────────────────────┼───────────────┼─────────┤
│wcpncpy() │ Thread safety │ MT-Safe │
└──────────────────────────────────────┴───────────────┴─────────┘
Стандарты (Conforming to)
POSIX.1-2008.
Смотри также (See also)
stpncpy(3), wcsncpy(3)
