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use wcstombs/mbstowcs instead of wcsrtombs/mbsrtombs

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for performance of non-C/POSIX locale.
This commit is contained in:
tnozaki 2006-10-04 14:19:16 +00:00
parent 44eb8f042e
commit dbae970b16
1 changed files with 8 additions and 12 deletions
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20
lib/libc/locale/wcsftime.c
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@ -1,4 +1,4 @@
/* $NetBSD: wcsftime.c,v 1.1 2005/03/30 03:47:12 christos Exp $ */
/* $NetBSD: wcsftime.c,v 1.2 2006/10/04 14:19:16 tnozaki Exp $ */
/*-
* Copyright (c) 2002 Tim J. Robbins
* All rights reserved.
@ -30,7 +30,7 @@
#if 0
__FBSDID("$FreeBSD: src/lib/libc/locale/wcsftime.c,v 1.4 2004/04/07 09:47:56 tjr Exp $");
#else
__RCSID("$NetBSD: wcsftime.c,v 1.1 2005/03/30 03:47:12 christos Exp $");
__RCSID("$NetBSD: wcsftime.c,v 1.2 2006/10/04 14:19:16 tnozaki Exp $");
#endif
#endif /* LIBC_SCCS and not lint */
@ -57,8 +57,6 @@ size_t
wcsftime(wchar_t *wcs, size_t maxsize,
const wchar_t *format, const struct tm *timeptr)
{
static const mbstate_t initial;
mbstate_t mbs;
char *dst, *dstp, *sformat;
size_t n, sflen;
int sverrno;
@ -69,14 +67,12 @@ wcsftime(wchar_t *wcs, size_t maxsize,
* Convert the supplied format string to a multibyte representation
* for strftime(), which only handles single-byte characters.
*/
mbs = initial;
sflen = wcsrtombs(NULL, &format, 0, &mbs);
sflen = wcstombs(NULL, format, 0);
if (sflen == (size_t)-1)
goto error;
if ((sformat = malloc(sflen + 1)) == NULL)
goto error;
mbs = initial;
wcsrtombs(sformat, &format, sflen + 1, &mbs);
wcstombs(sformat, format, sflen + 1);
/*
* Allocate memory for longest multibyte sequence that will fit
@ -89,14 +85,14 @@ wcsftime(wchar_t *wcs, size_t maxsize,
errno = EINVAL;
goto error;
}
if ((dst = malloc(maxsize * MB_CUR_MAX)) == NULL)
dst = malloc(maxsize * MB_CUR_MAX);
if (dst == NULL)
goto error;
if (strftime(dst, maxsize, sformat, timeptr) == 0)
goto error;
dstp = dst;
mbs = initial;
n = mbsrtowcs(wcs, (const char **)&dstp, maxsize, &mbs);
if (n == (size_t)-2 || n == (size_t)-1 || dstp != NULL)
n = mbstowcs(wcs, dstp, maxsize);
if (n == (size_t)-2 || n == (size_t)-1)
goto error;
free(sformat);