дублировать строку широких символов (duplicate a wide-character string)
Имя (Name)
wcsdup - duplicate a wide-character string
Синопсис (Synopsis)
#include <wchar.h>
wchar_t *wcsdup(const wchar_t *s);
Feature Test Macro Requirements for glibc (see
feature_test_macros(7)):
wcsdup():
Since glibc 2.10:
_POSIX_C_SOURCE >= 200809L
Before glibc 2.10:
_GNU_SOURCE
Описание (Description)
The wcsdup() function is the wide-character equivalent of the
strdup(3) function. It allocates and returns a new wide-
character string whose initial contents is a duplicate of the
wide-character string pointed to by s.
Memory for the new wide-character string is obtained with
malloc(3), and should be freed with free(3).
Возвращаемое значение (Return value)
On success, wcsdup() returns a pointer to the new wide-character
string. On error, it returns NULL, with errno set to indicate
the error.
Ошибки (Error)
ENOMEM Insufficient memory available to allocate duplicate
string.
Атрибуты (Attributes)
For an explanation of the terms used in this section, see
attributes(7).
┌──────────────────────────────────────┬───────────────┬─────────┐
│Interface │ Attribute │ Value │
├──────────────────────────────────────┼───────────────┼─────────┤
│wcsdup() │ Thread safety │ MT-Safe │
└──────────────────────────────────────┴───────────────┴─────────┘
Стандарты (Conforming to)
POSIX.1-2008. This function is not specified in POSIX.1-2001,
and is not widely available on other systems.
Смотри также (See also)
strdup(3), wcscpy(3)
