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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2022-07-14 18:53:09 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2022-07-14 18:53:09 +0000 |
commit | 3945f3269b3e2763faa1ab22d225ca4dd1856b82 (patch) | |
tree | 7e96ec768baa3807ce3a1076a74037a287f4caa8 /ccan/ccan/array_size/_info | |
parent | Initial commit. (diff) | |
download | libnvme-3945f3269b3e2763faa1ab22d225ca4dd1856b82.tar.xz libnvme-3945f3269b3e2763faa1ab22d225ca4dd1856b82.zip |
Adding upstream version 1.0.upstream/1.0
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'ccan/ccan/array_size/_info')
-rw-r--r-- | ccan/ccan/array_size/_info | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/ccan/ccan/array_size/_info b/ccan/ccan/array_size/_info new file mode 100644 index 0000000..69570f3 --- /dev/null +++ b/ccan/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; +} |