X-Git-Url: http://pileus.org/git/?a=blobdiff_plain;f=util.h;h=bc23ecd9a6005fce68d6007bec1b6cb016845039;hb=03298d834be19eed7eb1dd70c76a7f1f22a2e93b;hp=005dba623f13dcb878b34cd63331416a93896c76;hpb=f0adaa78963ffc8b870059d5787079fbbd7c52a5;p=wmpus diff --git a/util.h b/util.h index 005dba6..bc23ecd 100644 --- a/util.h +++ b/util.h @@ -1,3 +1,20 @@ +/* + * Copyright (c) 2011, Andy Spencer + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + */ + +/* Various utility functions */ + /* Misc macros */ #define MAX(a,b) ((a) > (b) ? (a) : (b)) #define MIN(a,b) ((a) < (b) ? (a) : (b)) @@ -6,17 +23,17 @@ #define countof(x) (sizeof(x)/sizeof((x)[0])) -/* Constant lenght map functitons */ -#define map_getg(map, test) ({ \ - int i; \ - for (i = 0; i < countof(map) && !(test); i++); \ - i < countof(map) ? &map[i] : NULL ; \ +/* Constant length map functions */ +#define map_get(map, k, kv, v, def) ({ \ + typeof(def) val = def; \ + for (int i = 0; i < countof(map); i++) \ + if (map[i].k == kv) { \ + val = map[i].v; \ + break; \ + } \ + val; \ }) -#define map_get(m,k) map_getg(m,k==*((typeof(k)*)&m[i])) -#define map_getr(m,k) map_getg(m,k==*(((typeof(k)*)&m[i+1])-1)) -#define map_getk(m,k,a) map_getg(m,k==m[i].a) - /* Linked lists */ typedef struct list { struct list *prev; @@ -30,7 +47,7 @@ void list_insert_after(list_t *after, void *data); list_t *list_append(list_t *before, void *data); -list_t *list_remove(list_t *head, list_t *item); +list_t *list_remove(list_t *head, list_t *item, int freedata); int list_length(list_t *item); @@ -38,5 +55,11 @@ list_t *list_last(list_t *list); list_t *list_find(list_t *list, void *data); +list_t *list_sort(list_t *list, int rev, int (*func)(void*,void*)); + /* Misc */ +int str2num(char *str, int def); + +int warn(char *fmt, ...); + int error(char *fmt, ...);