#include "config.h" #include #include /** * tlist2 - typesafe double linked list routines, alternative form * * The list header contains routines for manipulating double linked lists; * this extends it so you can create list head types which only accommodate * a specific entry type. * * Compared to 'tlist', this: * * - does not allow (or require) declaring an extra struct (uses anonymous * structs) * - encodes the member offset into the type (and as a result doesn't need the * member name, but requires the source list) * * Based on tlist by: Rusty Russell * * Example: * #include * #include * #include * #include * * struct child { * const char *name; * struct list_node list; * }; * * struct parent { * const char *name; * TLIST2(struct child, list) children; * unsigned int num_children; * }; * * int main(int argc, char *argv[]) * { * struct parent p; * struct child *c; * unsigned int i; * * if (argc < 2) * errx(1, "Usage: %s parent children...", argv[0]); * * p.name = argv[1]; * tlist2_init(&p.children); * for (i = 2; i < argc; i++) { * c = malloc(sizeof(*c)); * c->name = argv[i]; * tlist2_add(&p.children, c); * p.num_children++; * } * * printf("%s has %u children:", p.name, p.num_children); * tlist2_for_each(&p.children, c) * printf("%s ", c->name); * printf("\n"); * return 0; * } * * License: LGPL * Author: Cody P Schafer */ int main(int argc, char *argv[]) { if (argc != 2) return 1; if (strcmp(argv[1], "depends") == 0) { printf("ccan/list\n"); printf("ccan/tcon\n"); return 0; } return 1; }