diff options
Diffstat (limited to 'wcsmbs/wmemrtombs.c')
| -rw-r--r-- | wcsmbs/wmemrtombs.c | 126 |
1 files changed, 0 insertions, 126 deletions
diff --git a/wcsmbs/wmemrtombs.c b/wcsmbs/wmemrtombs.c deleted file mode 100644 index 5b8e39c..0000000 --- a/wcsmbs/wmemrtombs.c +++ /dev/null @@ -1,126 +0,0 @@ -/* Copyright (C) 1997 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Ulrich Drepper <drepper@gnu.org>, 1997. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Library General Public License as - published by the Free Software Foundation; either version 2 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Library General Public License for more details. - - You should have received a copy of the GNU Library General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#include <errno.h> -#include <wchar.h> - -#ifndef EILSEQ -#define EILSEQ EINVAL -#endif - - -static const wchar_t encoding_mask[] = -{ - ~0x7ff, ~0xffff, ~0x1fffff, ~0x3ffffff -}; - -static const unsigned char encoding_byte[] = -{ - 0xc0, 0xe0, 0xf0, 0xf8, 0xfc -}; - -/* We don't need the state really because we don't have shift states - to maintain between calls to this function. */ -static mbstate_t internal; - -/* This is a non-standard function but it is very useful in the - implementation of stdio because we have to deal with unterminated - buffers. At most NWC wide character will be converted. */ -size_t -__wmemrtombs (dst, src, nwc, len, ps) - char *dst; - const wchar_t **src; - size_t nwc; - size_t len; - mbstate_t *ps; -{ - size_t written = 0; - const wchar_t *run = *src; - - if (ps == NULL) - ps = &internal; - - if (dst == NULL) - /* The LEN parameter has to be ignored if we don't actually write - anything. */ - len = ~0; - - while (written < len && nwc-- > 0) - { - wchar_t wc; - - /* Store position of first unprocessed word. */ - *src = run; - - wc = *run++; - - if (wc < 0 || wc > 0x7fffffff) - { - /* This is no correct ISO 10646 character. */ - __set_errno (EILSEQ); - return (size_t) -1; - } - - if (wc < 0x80) - { - /* It's an one byte sequence. */ - if (dst != NULL) - *dst++ = (char) wc; - ++written; - } - else - { - size_t step; - - for (step = 2; step < 6; ++step) - if ((wc & encoding_mask[step - 2]) == 0) - break; - - if (written + step >= len) - /* Too long. */ - break; - - if (dst != NULL) - { - size_t cnt = step; - - dst[0] = encoding_byte[cnt - 2]; - - --cnt; - do - { - dst[cnt] = 0x80 | (wc & 0x3f); - wc >>= 6; - } - while (--cnt > 0); - dst[0] |= wc; - - dst += step; - } - - written += step; - } - } - - /* Store position of first unprocessed word. */ - *src = run; - - return written; -} -weak_alias (__wmemrtombs, wmemrtombs) |