diff options
Diffstat (limited to 'wcsmbs/wmemrtowcs.c')
| -rw-r--r-- | wcsmbs/wmemrtowcs.c | 157 |
1 files changed, 0 insertions, 157 deletions
diff --git a/wcsmbs/wmemrtowcs.c b/wcsmbs/wmemrtowcs.c deleted file mode 100644 index 4efdd72d2e..0000000000 --- a/wcsmbs/wmemrtowcs.c +++ /dev/null @@ -1,157 +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 - - -/* 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 NMC bytes will be converted. */ -size_t -__wmemrtowcs (dst, src, nmc, len, ps) - wchar_t *dst; - const char **src; - size_t nmc; - size_t len; - mbstate_t *ps; -{ - size_t written = 0; - const char *run = *src; - const char *last = run + nmc; - wchar_t value; - size_t count; - - if (ps == NULL) - ps = &internal; - - /* Get information from last use of this state. */ - count = ps->count; - value = ps->value; - - if (dst == NULL) - /* The LEN parameter has to be ignored if we don't actually write - anything. */ - len = ~0; - - /* Copy all words. */ - while (written < len && run < last) - { - unsigned char byte; - - /* Store address of next byte to process. */ - *src = run; - - /* Start reading a new character only if we are in the initial - state. */ - if (count == 0) - { - byte = *run++; - - /* We expect a start of a new multibyte character. */ - if (byte < 0x80) - { - /* One byte sequence. */ - count = 0; - value = byte; - } - else if ((byte & 0xe0) == 0xc0) - { - count = 1; - value = byte & 0x1f; - } - else if ((byte & 0xf0) == 0xe0) - { - /* We expect three bytes. */ - count = 2; - value = byte & 0x0f; - } - else if ((byte & 0xf8) == 0xf0) - { - /* We expect four bytes. */ - count = 3; - value = byte & 0x07; - } - else if ((byte & 0xfc) == 0xf8) - { - /* We expect five bytes. */ - count = 4; - value = byte & 0x03; - } - else if ((byte & 0xfe) == 0xfc) - { - /* We expect six bytes. */ - count = 5; - value = byte & 0x01; - } - else - { - /* This is an illegal encoding. */ - __set_errno (EILSEQ); - return (size_t) -1; - } - } - - /* Read the possible remaining bytes. */ - while (run < last && count > 0) - { - byte = *run++; - --count; - - if ((byte & 0xc0) != 0x80) - { - /* This is an illegal encoding. */ - __set_errno (EILSEQ); - return (size_t) -1; - } - - value <<= 6; - value |= byte & 0x3f; - } - - /* If this character is only partially available remember this. */ - if (run == last && count != 0) - { - ps->count = count; - ps->value = value; - break; - } - - /* Store value is required. */ - if (dst != NULL) - *dst++ = value; - - /* Increment counter of produced words. */ - ++written; - } - - /* Store address of next byte to process. */ - *src = run; - - return written; -} -weak_alias (__wmemrtowcs, wmemrtowcs) |