From fae3bd51ccf149bca7beaa81bc63727cf5a46562 Mon Sep 17 00:00:00 2001
From: LAN-TW <lantw44@gmail.com>
Date: Wed, 19 Sep 2012 23:24:48 +0800
Subject: 修改命令列參數格式，並加入 l4basic 作為輔助用函式庫
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目前有許多部份尚未配合此次命令列變更，因此程式運作可能不正常！
---
l4basic/l4darr/d1array.c | 131 +++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 131 insertions(+)
create mode 100644 l4basic/l4darr/d1array.c
(limited to 'l4basic/l4darr/d1array.c')
diff --git a/l4basic/l4darr/d1array.c b/l4basic/l4darr/d1array.c
new file mode 100644
index 0000000..4091358
--- /dev/null
+++ b/l4basic/l4darr/d1array.c
@@ -0,0 +1,131 @@
+#include <stdlib.h>
+#include <string.h>
+#include <l4darr.h>
+
+L4DA* l4da_create_setmax(int itemsize, int len, int maxlen){
+ if(itemsize <= 0 || len < 0 || maxlen < len){
+ return NULL;
+ }
+ L4DA* arr = (L4DA*)malloc(sizeof(L4DA));
+ if(arr == NULL){
+ return NULL;
+ }
+ arr->arr_itemsize = itemsize;
+ arr->arr_curlen = len;
+ arr->arr_maxlen = maxlen;
+ if(maxlen != 0){
+ arr->arr_data = malloc(itemsize * maxlen);
+ if(arr->arr_data == NULL){
+ free(arr);
+ return NULL;
+ }
+ }else{
+ arr->arr_data = NULL;
+ }
+ return arr;
+}
+
+L4DA* l4da_create(int itemsize, int len){
+ return l4da_create_setmax(itemsize, len, len);
+}
+
+void l4da_free(L4DA* arr){
+ if(arr->arr_data != NULL){
+ free(arr->arr_data);
+ }
+ free(arr);
+}
+
+int l4da_pushback(L4DA* arr, const void* data){
+ if((arr->arr_maxlen) < (arr->arr_curlen + 1)){
+ if(arr->arr_maxlen != 0){
+ if(l4da_setmax(arr, arr->arr_maxlen*2) < 0){
+ return -1;
+ }
+ }else{
+ if(l4da_setmax(arr, 1) < 0){
+ return -1;
+ }
+ }
+ }
+ memcpy(l4da_vp(arr, arr->arr_curlen), data, arr->arr_itemsize);
+ arr->arr_curlen++;
+ return 0;
+}
+
+int l4da_setlen(L4DA* arr, int len){
+ if(len > (arr->arr_maxlen)){
+ if(l4da_setmax(arr, len) < 0){
+ return -1;
+ }else{
+ arr->arr_curlen = len;
+ }
+ }else{
+ arr->arr_curlen = len;
+ return 0;
+ }
+ return 0;
+}
+
+int l4da_setmax(L4DA* arr, int max){
+ void* newptr;
+ if(arr->arr_data == NULL){
+ newptr = malloc((arr->arr_itemsize)*max);
+ if(newptr == NULL){
+ return -1;
+ }else{
+ arr->arr_maxlen = max;
+ arr->arr_data = newptr;
+ return 0;
+ }
+ }
+ newptr = realloc(arr->arr_data, (arr->arr_itemsize)*max);
+ if(newptr == NULL){
+ return -1;
+ }else{
+ arr->arr_maxlen = max;
+ arr->arr_data = newptr;
+ }
+ return 0;
+}
+
+int l4da_strip(L4DA* arr){
+ if(arr->arr_data == NULL){
+ return 0;
+ }
+ L4DA* newptr;
+ /* 其實縮小空間營該一定會成功才對......
+ * 不過還是保險一點，加個判斷式，別說 memory leak 是我害的
+ * 當然也是避免編譯器一直跳 warning
+ */
+ if((arr->arr_maxlen) > (arr->arr_curlen)){
+ arr->arr_maxlen = arr->arr_curlen;
+ newptr = realloc(arr->arr_data, (arr->arr_curlen)*(arr->arr_itemsize));
+ if(newptr == NULL){
+ return -1;
+ }
+ arr->arr_data = newptr;
+ }
+ return 0;
+}
+
+/* 基本上直接玩 struct 的函式還是少用吧 */
+void* l4da_drop_struct(L4DA* arr){
+ void* toreturn = arr->arr_data;
+ free(arr);
+ return toreturn;
+}
+
+L4DA* l4da_make_struct(void* data, int itemsize, int len, int maxlen){
+ if(itemsize <= 0 || len < 0 || maxlen < len){
+ return NULL;
+ }
+ L4DA* arr = (L4DA*)malloc(sizeof(L4DA));
+ if(arr == NULL){
+ return NULL;
+ }
+ arr->arr_itemsize = itemsize;
+ arr->arr_curlen = len;
+ arr->arr_maxlen = maxlen;
+ return arr;
+}
--
cgit