wcsdup

Section: C Library Functions (3)
Updated: 2022-12-15
Index Return to Main Contents
 

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).
InterfaceAttributeValue
wcsdup() Thread safetyMT-Safe

 

STANDARDS

POSIX.1-2008. This function is not specified in POSIX.1-2001, and is not widely available on other systems.  

SEE ALSO

strdup(3), wcscpy(3)

 

Index

NAME
LIBRARY
SYNOPSIS
DESCRIPTION
RETURN VALUE
ERRORS
ATTRIBUTES
STANDARDS
SEE ALSO
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Time: 12:16:01 GMT, May 09, 2024