2 * Generate random C declarations for testing.
3 * Copyright © 2012, 2020, 2022 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");
61 test_print_options(lopts);
64 static struct cdecl *random_decl(struct test_rng *rng)
69 decl = malloc_nofail(sizeof *decl);
70 *decl = (struct cdecl) { 0 };
72 decl->declarators = gen_declarators(rng);
73 if (decl->declarators->type != CDECL_DECL_FUNCTION)
74 flags |= GEN_NO_FUNCTION;
75 if (cdecl_is_abstract(decl->declarators))
76 flags |= GEN_NO_STORAGE | GEN_NO_FUNCTION;
77 if (decl->declarators->type == CDECL_DECL_ARRAY
78 || decl->declarators->type == CDECL_DECL_IDENT)
81 decl->specifiers = gen_declspecs(rng, flags);
85 int main(int argc, char **argv)
87 const char *seed = "", *count_str = NULL;
90 unsigned long count = 0;
91 int opt, mode = MODE_CDECL;
96 while ((opt = getopt_long(argc, argv, sopts, lopts, NULL)) != -1) {
111 test_print_version(PROGNAME);
122 if (count_str && !strict_strtoul(&count, count_str, 0)) {
123 fprintf(stderr, "%s: invalid count: %s\n", progname, count_str);
127 rng = test_rng_alloc(seed);
131 for (unsigned long i = 0; !count || i < count; i++) {
132 decl = random_decl(rng);
134 if (mode == MODE_ENGLISH) {
135 test_explain_decl(decl);
137 test_print_decl(decl);
140 gen_free_declspecs(decl->specifiers);
141 gen_free_declarators(decl->declarators);