diff options
Diffstat (limited to 'wcsmbs/mbsncat.c')
-rw-r--r-- | wcsmbs/mbsncat.c | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/wcsmbs/mbsncat.c b/wcsmbs/mbsncat.c new file mode 100644 index 0000000..3dd4df1 --- /dev/null +++ b/wcsmbs/mbsncat.c @@ -0,0 +1,61 @@ +/* Copyright (C) 1995 Free Software Foundation, Inc. +This file is part of the GNU C Library. + +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., 675 Mass Ave, +Cambridge, MA 02139, USA. */ + +#include <mbstr.h> +#include <stdlib.h> + + +/* Append no more than N multi-byte characters from SRC onto DEST. */ +char * +mbsncat (dest, src, n) + char *dest; + const char *src; + size_t n; +{ + const char * const d = dest; + const char * const s = src; + size_t len = 0; + int clen = 0; + + if (n == 0) + return (char *) d; + + /* Reset multibyte characters to their initial state. */ + (void) mblen ((char *) NULL, 0); + + do + { + dest += clen; + clen = mblen (dest, MB_CUR_MAX); + } + while (clen > 0); + + clen = 0; + do + { + src += clen; + clen = mblen (src, MB_CUR_MAX); + } + while (clen > 0 && ++len < n); + + (void) memcpy ((void *) dest, (void *) s, src - s); + dest[src - s] = '\0'; /* '\0' is the multibyte representation of L'\0' */ + + return (char *) d; +} + |