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888389e625
We need the following additional modules for the daemon: io, time, timer, pipecmd Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
81 lines
2.1 KiB
Plaintext
81 lines
2.1 KiB
Plaintext
#include "config.h"
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#include <stdio.h>
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#include <string.h>
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/**
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* tcon - routines for creating typesafe generic containers
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*
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* This code lets users create a structure with a typecanary; your API
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* is then a set of macros which check the type canary before calling
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* the generic routines.
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*
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* Example:
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* #include <ccan/tcon/tcon.h>
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* #include <stdio.h>
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*
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* // A simple container class. Can only contain one thing though!
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* struct container {
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* void *contents;
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* };
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* static inline void container_add_raw(struct container *c, void *p)
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* {
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* c->contents = p;
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* }
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* static inline void *container_get_raw(struct container *c)
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* {
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* return c->contents;
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* }
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*
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* // This lets the user define their container type; includes a
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* // "type canary" to check types against.
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* #define DEFINE_TYPED_CONTAINER_STRUCT(name, type) \
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* struct name { struct container raw; TCON(type canary); }
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*
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* // These macros make sure the container type and pointer match.
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* #define container_add(c, p) \
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* container_add_raw(&tcon_check((c), canary, (p))->raw, (p))
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* #define container_get(c) \
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* tcon_cast((c), canary, container_get_raw(&(c)->raw))
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*
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* // Now, let's define two different containers.
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* DEFINE_TYPED_CONTAINER_STRUCT(int_container, int *);
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* DEFINE_TYPED_CONTAINER_STRUCT(string_container, char *);
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*
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* int main(int argc, char *argv[])
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* {
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* struct int_container ic;
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* struct string_container sc;
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*
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* // We would get a warning if we used the wrong types...
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* container_add(&ic, &argc);
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* container_add(&sc, argv[argc-1]);
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*
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* printf("Last arg is %s of %i arguments\n",
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* container_get(&sc), *container_get(&ic) - 1);
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* return 0;
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* }
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* // Given "foo" outputs "Last arg is foo of 1 arguments\n"
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* // Given "foo bar" outputs "Last arg is bar of 2 arguments\n"
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*
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* License: CC0 (Public domain)
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*
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* Author: Rusty Russell <rusty@rustcorp.com.au>
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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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return 0;
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}
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if (strcmp(argv[1], "testdepends") == 0) {
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printf("ccan/build_assert\n");
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return 0;
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}
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return 1;
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}
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