2 * Generate random C declarations for testing.
3 * Copyright © 2012, 2020 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 <https://www.gnu.org/licenses/>.
32 #define PROGNAME "randomdecl"
33 static const char *progname = PROGNAME;
34 static const char sopts[] = "s:n:ECVH";
35 static const struct option lopts[] = {
36 { "seed", 1, NULL, 's' },
37 { "count", 1, NULL, 'n' },
38 { "cdecl", 0, NULL, 'C' },
39 { "english", 0, NULL, 'E' },
40 { "version", 0, NULL, 'V' },
41 { "help", 0, NULL, 'H' },
50 static void print_usage(FILE *f)
52 fprintf(f, "Usage: %s [options]\n", progname);
55 static void print_help(void)
57 const struct option *opt;
60 puts("Generate random C declarations for testing.\n");
63 for (opt = lopts; opt->val; opt++) {
64 int w = print_option_start(opt, NULL);
71 static struct cdecl *random_decl(struct gen_rng *rng)
76 decl = malloc_nofail(sizeof *decl);
77 *decl = (struct cdecl) { 0 };
79 decl->declarators = gen_declarators(rng);
80 if (decl->declarators->type != CDECL_DECL_FUNCTION)
81 flags |= GEN_NO_FUNCTION;
82 if (cdecl_is_abstract(decl->declarators))
83 flags |= GEN_NO_STORAGE | GEN_NO_FUNCTION;
84 if (decl->declarators->type == CDECL_DECL_ARRAY
85 || decl->declarators->type == CDECL_DECL_IDENT)
88 decl->specifiers = gen_declspecs(rng, flags);
92 int main(int argc, char **argv)
94 const char *seed = "", *count_str = NULL;
97 unsigned long count = 0;
98 int opt, mode = MODE_CDECL;
103 while ((opt = getopt_long(argc, argv, sopts, lopts, NULL)) != -1) {
118 test_print_version(PROGNAME);
129 if (count_str && !strict_strtoul(&count, count_str, 0)) {
130 fprintf(stderr, "%s: invalid count: %s\n", progname, count_str);
134 rng = gen_alloc_rng(seed);
138 for (unsigned long i = 0; !count || i < count; i++) {
139 decl = random_decl(rng);
141 if (mode == MODE_ENGLISH) {
142 test_explain_decl(decl);
144 test_print_decl(decl);
147 gen_free_declspecs(decl->specifiers);
148 gen_free_declarators(decl->declarators);