diff options
Diffstat (limited to 'MSVC/iconv/ucs2swapped.h')
-rw-r--r-- | MSVC/iconv/ucs2swapped.h | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/MSVC/iconv/ucs2swapped.h b/MSVC/iconv/ucs2swapped.h new file mode 100644 index 0000000..da564ef --- /dev/null +++ b/MSVC/iconv/ucs2swapped.h @@ -0,0 +1,60 @@ +/* + * Copyright (C) 1999-2001 Free Software Foundation, Inc. + * This file is part of the GNU LIBICONV Library. + * + * The GNU LIBICONV 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 LIBICONV 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 LIBICONV 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. + */ + +/* + * UCS-2-SWAPPED = UCS-2-INTERNAL with inverted endianness + */ + +static int +ucs2swapped_mbtowc (conv_t conv, ucs4_t *pwc, const unsigned char *s, int n) +{ + /* This function assumes that 'unsigned short' has exactly 16 bits. */ + if (sizeof(unsigned short) != 2) abort(); + + if (n >= 2) { + unsigned short x = *(const unsigned short *)s; + x = (x >> 8) | (x << 8); + if (x >= 0xd800 && x < 0xe000) { + return RET_ILSEQ; + } else { + *pwc = x; + return 2; + } + } + return RET_TOOFEW(0); +} + +static int +ucs2swapped_wctomb (conv_t conv, unsigned char *r, ucs4_t wc, int n) +{ + /* This function assumes that 'unsigned short' has exactly 16 bits. */ + if (sizeof(unsigned short) != 2) abort(); + + if (wc < 0x10000 && !(wc >= 0xd800 && wc < 0xe000)) { + if (n >= 2) { + unsigned short x = wc; + x = (x >> 8) | (x << 8); + *(unsigned short *)r = x; + return 2; + } else + return RET_TOOSMALL; + } else + return RET_ILUNI; +} |