diff options
Diffstat (limited to 'REORG.TODO/wcsmbs/wcswidth.c')
-rw-r--r-- | REORG.TODO/wcsmbs/wcswidth.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/REORG.TODO/wcsmbs/wcswidth.c b/REORG.TODO/wcsmbs/wcswidth.c new file mode 100644 index 0000000000..6e4a1d9f95 --- /dev/null +++ b/REORG.TODO/wcsmbs/wcswidth.c @@ -0,0 +1,38 @@ +/* Copyright (C) 1996-2017 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1996. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#include "wcwidth.h" + +/* Determine number of column positions required for first N wide + characters (or fewer if S ends before this) in S. */ +int +wcswidth (const wchar_t *s, size_t n) +{ + int result = 0; + + while (n-- > 0 && *s != L'\0') + { + int now = internal_wcwidth (*s); + if (now == -1) + return -1; + result += now; + ++s; + } + + return result; +} |