-#include <stdio.h>
-#include <string.h>
-#include "config.h"
-
-/**
- * talloc - tree allocator routines
- *
- * Talloc is a hierarchical memory pool system with destructors: you keep your
- * objects in heirarchies reflecting their lifetime. Every pointer returned
- * from talloc() is itself a valid talloc context, from which other talloc()s
- * can be attached. This means you can do this:
- *
- * struct foo *X = talloc(mem_ctx, struct foo);
- * X->name = talloc_strdup(X, "foo");
- *
- * and the pointer X->name would be a "child" of the talloc context "X" which
- * is itself a child of mem_ctx. So if you do talloc_free(mem_ctx) then it is
- * all destroyed, whereas if you do talloc_free(X) then just X and X->name are
- * destroyed, and if you do talloc_free(X->name) then just the name element of
- * X is destroyed.
- *
- * If you think about this, then what this effectively gives you is an n-ary
- * tree, where you can free any part of the tree with talloc_free().
- *
- * Talloc has been measured with a time overhead of around 4% over glibc
- * malloc, and 48/80 bytes per allocation (32/64 bit).
- *
- * This version is based on svn://svnanon.samba.org/samba/branches/SAMBA_4_0/source/lib/talloc revision 23158.
- *
- * Example:
- * #include <stdio.h>
- * #include <stdarg.h>
- * #include <err.h>
- * #include <ccan/talloc/talloc.h>
- *
- * // A structure containing a popened command.
- * struct command
- * {
- * FILE *f;
- * const char *command;
- * };
- *
- * // When struct command is freed, we also want to pclose pipe.
- * static int close_cmd(struct command *cmd)
- * {
- * pclose(cmd->f);
- * // 0 means "we succeeded, continue freeing"
- * return 0;
- * }
- *
- * // This function opens a writable pipe to the given command.
- * struct command *open_output_cmd(const void *ctx, char *fmt, ...)
- * {
- * va_list ap;
- * struct command *cmd = talloc(ctx, struct command);
- *
- * if (!cmd)
- * return NULL;
- *
- * va_start(ap, fmt);
- * cmd->command = talloc_vasprintf(cmd, fmt, ap);
- * va_end(ap);
- * if (!cmd->command) {
- * talloc_free(cmd);
- * return NULL;
- * }
- *
- * cmd->f = popen(cmd->command, "w");
- * if (!cmd->f) {
- * talloc_free(cmd);
- * return NULL;
- * }
- * talloc_set_destructor(cmd, close_cmd);
- * return cmd;
- * }
- *
- * int main(int argc, char *argv[])
- * {
- * struct command *cmd;
- *
- * if (argc != 2)
- * errx(1, "Usage: %s <command>\n", argv[0]);
- *
- * cmd = open_output_cmd(NULL, "%s hello", argv[1]);
- * if (!cmd)
- * err(1, "Running '%s hello'", argv[1]);
- * fprintf(cmd->f, "This is a test\n");
- * talloc_free(cmd);
- * return 0;
- * }
- *
- * Licence: GPL (2 or any later version)
- */
-int main(int argc, char *argv[])
-{
- if (argc != 2)
- return 1;
-
- if (strcmp(argv[1], "depends") == 0) {
- printf("ccan/typesafe_cb\n");
- return 0;
- }
-
- return 1;
-}