wcsdup - duplicate a wide-character string
wchar_t *wcsdup(const wchar_t *s);
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
Since glibc 2.10: _XOPEN_SOURCE >= 700 || _POSIX_C_SOURCE >= 200809L Before glibc 2.10: _GNU_SOURCE
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).
The wcsdup() function returns a pointer to the new wide-character string, or NULL if sufficient memory was not available.
ENOMEM Insufficient memory available to allocate duplicate string.
POSIX.1-2008. This function is not specified in POSIX.1-2001, and is not widely available on other systems.
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