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#include "config.h"
#include <stdio.h>
#include <string.h>
/**
* take - routines to mark pointers to be consumed by called functions.
*
* This code helps to implement ownership transfer on a per-arg basis:
* the caller wraps the pointer argument in take() and the callee checks
* taken() to see if it should consume it.
*
* Author: Rusty Russell <rusty@rustcorp.com.au>
* License: CC0 (Public domain)
*
* Example:
* // Given foo/bar.c outputs basename is bar.c
* #include <ccan/take/take.h>
* #include <string.h>
*
* // Dumb basename program and driver.
* static char *base(const char *file)
* {
* const char *p = strrchr(file, '/');
* if (!p)
* p = file;
* else
* p++;
*
* // Use arg in place if we're allowed.
* if (taken(file))
* return memmove((char *)file, p, strlen(p)+1);
* else
* return strdup(p);
* }
*
* int main(int argc, char *argv[])
* {
* char *b;
*
* if (argv[1]) // Mangle in place.
* b = base(take(argv[1]));
* else
* b = base("test/string");
*
* printf("basename is %s\n", b);
* return 0;
* }
*/
int main(int argc, char *argv[])
{
if (argc != 2)
return 1;
if (strcmp(argv[1], "depends") == 0) {
printf("ccan/likely\n");
return 0;
}
return 1;
}
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