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57 lines
1.3 KiB
57 lines
1.3 KiB
#include "config.h"
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#include <string.h>
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#include <stdio.h>
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/**
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* likely - macros for annotating likely/unlikely branches in the code
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*
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* Inspired by Andi Kleen's macros for the Linux Kernel, these macros
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* help you annotate rare paths in your code for the convenience of the
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* compiler and the reader.
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*
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* With CCAN_LIKELY_DEBUG defined, it provides statistics for each
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* likely()/unlikely() call (but note that this requires LGPL dependencies).
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*
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* License: CC0 (Public domain)
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* Author: Rusty Russell <rusty@rustcorp.com.au>
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*
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* Example:
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* #include <ccan/likely/likely.h>
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* #include <stdio.h>
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*
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* int main(int argc, char *argv[])
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* {
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* // This example is silly: the compiler knows exit() is unlikely.
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* if (unlikely(argc == 1)) {
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* fprintf(stderr, "Usage: %s <args>...\n", argv[0]);
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* return 1;
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* }
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* for (argc++; argv[argc]; argc++)
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* printf("%s\n", argv[argc]);
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* return 0;
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* }
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*/
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int main(int argc, char *argv[])
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{
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/* Expect exactly one argument */
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if (argc != 2)
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return 1;
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if (strcmp(argv[1], "depends") == 0) {
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#ifdef CCAN_LIKELY_DEBUG
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printf("ccan/str\n");
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printf("ccan/htable\n");
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printf("ccan/hash\n");
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#endif
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return 0;
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}
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if (strcmp(argv[1], "testdepends") == 0) {
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#ifndef CCAN_LIKELY_DEBUG
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printf("ccan/str\n");
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printf("ccan/htable\n");
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printf("ccan/hash\n");
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#endif
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return 0;
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}
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return 1;
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}
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