diff options
author | Kent Overstreet <kent.overstreet@linux.dev> | 2024-01-16 17:00:02 -0500 |
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committer | Kent Overstreet <kent.overstreet@linux.dev> | 2024-01-16 17:17:23 -0500 |
commit | b5fd066153c40a70a29caa1ea7987723ab687763 (patch) | |
tree | 6d43a8b0a90d549a54c65565ac96c92b3e84b594 /ccan/array_size/_info | |
parent | 06ff8b55b70fda44d91b31b5511fafd1680a8934 (diff) |
Move c_src dirs back to toplevel
We just wanted c sourcefiles out of the top level, not c source
directories.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Diffstat (limited to 'ccan/array_size/_info')
-rw-r--r-- | ccan/array_size/_info | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/ccan/array_size/_info b/ccan/array_size/_info new file mode 100644 index 00000000..69570f34 --- /dev/null +++ b/ccan/array_size/_info @@ -0,0 +1,46 @@ +#include "config.h" +#include <stdio.h> +#include <string.h> + +/** + * array_size - routine for safely deriving the size of a visible array. + * + * This provides a simple ARRAY_SIZE() macro, which (given a good compiler) + * will also break compile if you try to use it on a pointer. + * + * This can ensure your code is robust to changes, without needing a gratuitous + * macro or constant. + * + * Example: + * // Outputs "Initialized 32 values\n" + * #include <ccan/array_size/array_size.h> + * #include <stdlib.h> + * #include <stdio.h> + * + * // We currently use 32 random values. + * static unsigned int vals[32]; + * + * int main(void) + * { + * unsigned int i; + * for (i = 0; i < ARRAY_SIZE(vals); i++) + * vals[i] = random(); + * printf("Initialized %u values\n", i); + * return 0; + * } + * + * License: CC0 (Public domain) + * Author: Rusty Russell <rusty@rustcorp.com.au> + */ +int main(int argc, char *argv[]) +{ + if (argc != 2) + return 1; + + if (strcmp(argv[1], "depends") == 0) { + printf("ccan/build_assert\n"); + return 0; + } + + return 1; +} |