Subversion Repositories openrisc_2011-10-31

/*

FUNCTION

        <<wcsdup>>---wide character string duplicate

INDEX

        wcsdup

INDEX

        _wcsdup_r

ANSI_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]>);

TRAD_SYNOPSIS

        #include <wchar.h>

        wchar_t *wcsdup(<[ptr]>, <[str]>)

        struct _reent *<[ptr]>;

        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 */