libcstl中的list没法插入自定义数据

一开始运行出错，开启debug以后发现在push自定义对象的时候调试器提示找不到一个叫/XXX/XXXX/XXXX/libcstl-2.3.0/src/cstl_list_private.c</br>
而那个路径正是我进行安装的路径，安装完以后我把安装包给删除掉了，所以它找不到。这样的话，我们在一开始安装的时候就要注意最好先把tar.gz解压出来的文件夹放到特定文件夹，比如/usr/local/下，这样不会在安装完成后被误删，也比较方便查找。</br>
但是再次调试的时候却发现插入操作死在了调用_my_copy()函数那里，里面设置了一个int型临时变量i_temp用来作中间值方便调试，调试过程中发现i_temp成了一个非常小的负值。
但是直接调用_my_copy()是能正确运行的。</br>
鉴于程序呈现出这种尿性，我觉得应该是cstl它自己设计得不够健壮。。。不然实在是说不通程序会死在_my_copy()函数那里。
其实最后我发现copy函数形参里的cpv_source它的地址为0x1，明显就不可能。这个就关系到cstl对list的内部实现了，不想再深入去了解，暂时到此为止。
最后还是照惯例贴个代码：

  1 /*
  2  * new_test_for_ctsl_selfType.c
  3  *
  4  *  Created on: Mar 21, 2014
  5  *      Author: nerohwang
  6  */
  7 #include<stdio.h>
  8 #include<stdlib.h>
  9 #include<cstl/clist.h>
 10 #include<assert.h>
 11 /*Initlizing a user-defined type ,use
 12  * func type_register(1,2,3,4,5) first.
 13  * 1.type: user-defined type
 14  * 2.ufun_init: init function
 15  * 3.bfun_copy: copy function
 16  * 4.bfun_less: less-comparison function
 17  * 5.ufun_destroy: destroy function
 18 
 19 bool_t type_register(
 20 type,
 21 unary_function_t ufun_init,
 22 binary_function_t bfun_copy,
 23 binary_function_t bfun_less,
 24 unary_function_t ufun_destroy
 25 );
 26  *
 27 */
 28 typedef struct user_defined_type
 29 {
 30     int i_first;
 31     int i_second;
 32 }myType;
 33 
 34 static void _my_init(const void* cpv_input,void* pv_output)
 35 {
 36     assert(cpv_input != NULL);
 37     ((myType*)cpv_input)->i_first = 8;
 38     ((myType*)cpv_input)->i_second = 9;
 39     *((bool_t*)pv_output) = true;
 40 }
 41 
 42 static void _my_copy(const void* cpv_dest,const void* cpv_source,void* pv_output)
 43 {
 44     assert(cpv_dest != NULL && cpv_source != NULL);
 45     int i_temp = ((myType*)cpv_source)->i_first;
 46     ((myType*)cpv_dest)->i_first = i_temp;
 47     i_temp = ((myType*)cpv_source)->i_second;
 48     ((myType*)cpv_dest)->i_second = i_temp;
 49     *((bool_t*)pv_output) = true;
 50 }
 51 
 52 static void _my_destroy(const void* cpv_input,void* pv_output)
 53 {
 54     assert(cpv_input != NULL);
 55     ((myType*)cpv_input)->i_first = 0;
 56     ((myType*)cpv_input)->i_second = 0;
 57     *((bool_t*)pv_output) = true;
 58 }
 59 
 60 static void _my_less(const void* cpv_first, const void* cpv_second,void* pv_output)
 61 {
 62     assert(cpv_first != NULL && cpv_second != NULL);
 63     *((bool_t*)pv_output) = (((myType*)cpv_first)->i_first < ((myType*)cpv_second)->i_first)?true:false;
 64 }
 65 
 66 int main(int argc,char* argv[])
 67 {
 68     list_t* pList = create_list(myType);
 69     list_iterator_t i_it;
 70     list_iterator_t my_it;
 71     printf("Before type register:\n");
 72     if(pList == NULL){
 73         printf("Creation of myType failed!\n");
 74     }else{
 75         printf("Creation of myType succeeded!\n");
 76     }
 77     type_register(myType,_my_init,_my_copy,_my_less,_my_destroy);
 78 
 79     pList = create_list(myType);
 80     printf("After type register:\n");
 81     if(pList != NULL){
 82             printf("Creation of myType succeeded!\n");
 83     }else{
 84             printf("Creation of myType failed!\n");
 85     }
 86 
 87     //just a simple test.
 88     myType my_first;
 89     my_first.i_first = 1;
 90     my_first.i_second = 2;
 91     printf("first :one-> %d,sec-> %d\n",my_first.i_first,my_first.i_second);
 92 
 93     myType my_second;   //default
 94 
 95     myType my_third;
 96     my_third.i_first = 12;
 97     my_third.i_second = 13;
 98 
 99     list_t* pList_i = create_list(int);
100     if(pList_i == NULL){
101         printf("Creation of int list failed!\n");
102     }
103     list_init(pList_i);
104     list_push_back(pList_i,3);
105     list_push_back(pList_i,8);
106     list_push_back(pList_i,7);
107     printf("Now we have %d int-var in our list\n",list_size(pList_i));
108     for(i_it = list_begin(pList_i);!iterator_equal(i_it,list_end(pList_i));i_it = iterator_next(i_it))
109     {
110         printf("%d\t",*(int*)iterator_get_pointer(i_it));
111     }
112     printf("\n");
113 
114     bool_t b_temp;
115     _my_copy((void*)&my_second,(void*)&my_first,(void*)&b_temp);
116     printf("Second :one-> %d,sec-> %d\n",my_second.i_first,my_second.i_second);
117 
118     printf("break point\n");
119     list_init(pList);
120     list_push_back(pList,my_second);
121     my_it = list_begin(pList);
122     printf("Second myType: one-> %d , sec->%d\n",((myType*)iterator_get_pointer(my_it))->i_first,\
123             ((myType*)iterator_get_pointer(my_it))->i_second);
124 
125 
126     printf("break point\n");
127     list_push_back(pList,my_first);
128     list_push_back(pList,my_third);
129     printf("Now we have %d obj in our list\n",list_size(pList));
130     return 0;
131 
132 }

 

posted @ 2014-03-21 16:55  NeroHwang  阅读(1133)  评论(0)  编辑  收藏  举报