From 754c677b0bbf3ea6c7d2a73c93848f1b0d68c91e Mon Sep 17 00:00:00 2001 From: Rusty Russell Date: Mon, 20 Jun 2011 16:54:15 +0930 Subject: lib: import ccan modules for tdb2 Imported from git://git.ozlabs.org/~ccan/ccan init-1161-g661d41f Signed-off-by: Rusty Russell --- lib/ccan/likely/_info | 45 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 45 insertions(+) create mode 100644 lib/ccan/likely/_info (limited to 'lib/ccan/likely/_info') diff --git a/lib/ccan/likely/_info b/lib/ccan/likely/_info new file mode 100644 index 0000000000..471c1ffc78 --- /dev/null +++ b/lib/ccan/likely/_info @@ -0,0 +1,45 @@ +#include +#include +#include "config.h" + +/** + * likely - macros for annotating likely/unlikely branches in the code + * + * Inspired by Andi Kleen's macros for the Linux Kernel, these macros + * help you annotate rare paths in your code for the convenience of the + * compiler and the reader. + * + * License: LGPL (2 or any later version) + * Author: Rusty Russell + * + * Example: + * #include + * #include + * + * int main(int argc, char *argv[]) + * { + * // This example is silly: the compiler knows exit() is unlikely. + * if (unlikely(argc == 1)) { + * fprintf(stderr, "Usage: %s ...\n", argv[0]); + * return 1; + * } + * for (argc++; argv[argc]; argc++) + * printf("%s\n", argv[argc]); + * return 0; + * } + */ +int main(int argc, char *argv[]) +{ + /* Expect exactly one argument */ + if (argc != 2) + return 1; + + if (strcmp(argv[1], "depends") == 0) { + printf("ccan/str\n"); + printf("ccan/htable\n"); + printf("ccan/hash\n"); + return 0; + } + + return 1; +} -- cgit