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wcsdup(3) | Library Functions Manual | wcsdup(3) |
NAME¶
wcsdup - duplicate a wide-character string
LIBRARY¶
Standard C library (libc, -lc)
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
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).
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.
ERRORS¶
- ENOMEM
- Insufficient memory available to allocate duplicate string.
ATTRIBUTES¶
For an explanation of the terms used in this section, see attributes(7).
Interface | Attribute | Value |
wcsdup () | Thread safety | MT-Safe |
STANDARDS¶
POSIX.1-2008.
HISTORY¶
libc5, glibc 2.0.
SEE ALSO¶
2023-03-30 | Linux man-pages 6.04 |