cdrtools/libschily/wcsdup.c

52 lines
1.2 KiB
C
Raw Permalink Normal View History

2025-06-15 04:19:58 +08:00
/* @(#)wcsdup.c 1.7 10/08/21 Copyright 2003-2010 J. Schilling */
#include <schily/mconfig.h>
#ifndef lint
static UConst char sccsid[] =
"@(#)wcsdup.c 1.7 10/08/21 Copyright 2003-2010 J. Schilling";
#endif
/*
* wcsdup() to be used if missing in libc
*
* Copyright (c) 2003-2010 J. Schilling
*/
/*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* See the file CDDL.Schily.txt in this distribution for details.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file CDDL.Schily.txt from this distribution.
*/
#include <schily/standard.h>
#include <schily/stdlib.h>
#include <schily/unistd.h>
#include <schily/wchar.h>
#include <schily/schily.h>
#ifndef HAVE_WCSDUP
EXPORT wchar_t *
wcsdup(s)
const wchar_t *s;
{
unsigned i = wcslen(s) + 1;
wchar_t *res = malloc(i * sizeof (wchar_t));
if (res == NULL)
return (NULL);
if (i > 16) {
movebytes(s, res, (int)(i * sizeof (wchar_t)));
} else {
wchar_t *s2 = res;
while ((*s2++ = *s++) != '\0')
;
}
return (res);
}
#endif /* HAVE_WCSDUP */