source: trunk/libs/newlib/src/newlib/libc/string/wcsdup.c @ 577

/*
FUNCTION
        <<wcsdup>>---wide character string duplicate
        
INDEX
        wcsdup
INDEX
        _wcsdup_r

SYNOPSIS
        #include <wchar.h>
        wchar_t *wcsdup(const wchar_t *<[str]>);

        #include <wchar.h>
        wchar_t *_wcsdup_r(struct _reent *<[ptr]>, const wchar_t *<[str]>);

DESCRIPTION
        <<wcsdup>> allocates a new wide character string using <<malloc>>,
        and copies the content of the argument <[str]> into the newly
        allocated string, thus making a copy of <[str]>.

RETURNS 
        <<wcsdup>> returns a pointer to the copy of <[str]> if enough
        memory for the copy was available.  Otherwise it returns NULL
        and errno is set to ENOMEM.

PORTABILITY
POSIX-1.2008

QUICKREF
        wcsdup 
*/

#include <reent.h>
#include <stdlib.h>
#include <wchar.h>

wchar_t *
_wcsdup_r (struct _reent *p, const wchar_t *str)
{
  size_t len = wcslen (str) + 1;
  wchar_t *copy = _malloc_r (p, len * sizeof (wchar_t));
  if (copy)
    wmemcpy (copy, str, len);
  return copy;
}

#ifndef _REENT_ONLY

wchar_t *
wcsdup (const wchar_t *str)
{
  return _wcsdup_r (_REENT, str);
}

#endif /* !_REENT_ONLY */