1 /* Determine number of screen columns needed for a size-bounded wide string.
2 Copyright (C) 1999, 2011-2018 Free Software Foundation, Inc.
3 Written by Bruno Haible <bruno@clisp.org>, 1999.
5 This program is free software: you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 3 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program. If not, see <https://www.gnu.org/licenses/>. */
19 wcswidth (const wchar_t *s
, size_t n
)
22 for (; n
> 0; s
++, n
--)
25 if (c
== (wchar_t)'\0')
28 int width
= wcwidth (c
);
30 goto found_nonprinting
;
31 if (width
> INT_MAX
- count
)