Mercurial > gnulib
view lib/wcswidth-impl.h @ 40205:9e8fb35d4032
relocatable-prog: Revert "Use wrapper-free installation on Mac OS X."
* build-aux/install-reloc: Revert change.
* m4/relocatable.m4 (gl_RELOCATABLE_BODY): Likewise.
author | Bruno Haible <bruno@clisp.org> |
---|---|
date | Mon, 04 Mar 2019 17:25:04 +0100 |
parents | b06060465f09 |
children |
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/* Determine number of screen columns needed for a size-bounded wide string. Copyright (C) 1999, 2011-2019 Free Software Foundation, Inc. Written by Bruno Haible <bruno@clisp.org>, 1999. This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This program 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 General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <https://www.gnu.org/licenses/>. */ int wcswidth (const wchar_t *s, size_t n) { int count = 0; for (; n > 0; s++, n--) { wchar_t c = *s; if (c == (wchar_t)'\0') break; { int width = wcwidth (c); if (width < 0) goto found_nonprinting; if (width > INT_MAX - count) goto overflow; count += width; } } return count; found_nonprinting: return -1; overflow: return INT_MAX; }