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#include "config.h"
#include <string.h>
#include <stdio.h>
/**
* compiler - macros for common compiler extensions
*
* Abstracts away some compiler hints. Currently these include:
* - COLD
* For functions not called in fast paths (aka. cold functions)
* - PRINTF_FMT
* For functions which take printf-style parameters.
* - CONST_FUNCTION
* For functions which return the same value for same parameters.
* - NEEDED
* For functions and variables which must be emitted even if unused.
* - UNNEEDED
* For functions and variables which need not be emitted if unused.
* - UNUSED
* For parameters which are not used.
* - IS_COMPILE_CONSTANT()
* For using different tradeoffs for compiletime vs runtime evaluation.
*
* License: CC0 (Public domain)
* Author: Rusty Russell <rusty@rustcorp.com.au>
*
* Example:
* #include <ccan/compiler/compiler.h>
* #include <stdio.h>
* #include <stdarg.h>
*
* // Example of a (slow-path) logging function.
* static int log_threshold = 2;
* static void COLD PRINTF_FMT(2,3)
* logger(int level, const char *fmt, ...)
* {
* va_list ap;
* va_start(ap, fmt);
* if (level >= log_threshold)
* vfprintf(stderr, fmt, ap);
* va_end(ap);
* }
*
* int main(int argc, char *argv[])
* {
* if (argc != 1) {
* logger(3, "Don't want %i arguments!\n", argc-1);
* return 1;
* }
* return 0;
* }
*/
int main(int argc, char *argv[])
{
/* Expect exactly one argument */
if (argc != 2)
return 1;
if (strcmp(argv[1], "depends") == 0) {
return 0;
}
return 1;
}
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