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stdio-common/translated_number_width.c
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Paul Eggert
Update copyright dates with scripts/update-copyrights
02 янв 2026, 00:42
02 янв 2026, 00:42
66f3e92
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/* Compute the printf width of a sequence of ASCII digits. Copyright (C) 2022-2026 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 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 <https://www.gnu.org/licenses/>. */ #include <assert.h> #include <limits.h> #include <locale/localeinfo.h> #include <printf.h> int __translated_number_width (locale_t loc, const char *first, const char *last) { struct lc_ctype_data *ctype = loc->__locales[LC_CTYPE]->private; if (ctype->outdigit_bytes_all_equal > 0) return (last - first) * ctype->outdigit_bytes_all_equal; else { /* Digits have varying length, so the fast path cannot be used. */ int digits = 0; for (const char *p = first; p < last; ++p) { assert ('0' <= *p && *p <= '9'); digits += ctype->outdigit_bytes[*p - '0']; } return digits; } }