2 * Miscellaneous functions used by the cdecl99 test suite.
3 * Copyright © 2011-2012, 2021-2023 Nick Bowler
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 <http://www.gnu.org/licenses/>.
31 void *realloc_nofail(void *ptr, size_t size)
35 p = realloc(ptr, size);
37 perror("failed to allocate memory");
44 void *malloc_nofail(size_t size)
46 return realloc_nofail(NULL, size);
49 static unsigned intconv_base(const char **str)
51 if ((*str)[0] == '0') {
52 if ((*str)[1] == 'X' || (*str)[1] == 'x') {
54 return INTCONV_HEXADECIMAL;
60 return INTCONV_DECIMAL;
63 bool test_strtoumax(uintmax_t *out, const char *s, uintmax_t limit)
65 static const char idx[] = "0123456789abcdef0123456789ABCDEF";
66 unsigned base = intconv_base(&s);
70 for (v = 0; (d = *s++);) {
71 if (!(c = strchr(idx, d)) || (d = (c-idx) & 0xf) >= base)
74 if (!intconv_shift(&v, base, d) || v > limit)
82 void test_print_options(const struct option *lopts)
84 const struct option *opt;
87 for (opt = lopts; opt->val; opt++) {
88 if (help_print_optstring(opt, "ARG", 20))