极客观点
项目管理
HarmonyOS
我有2个cpp文件，2个里面各自有一个结构体，成员不一样，但是名字恰好一样。
我使用的时候，就会出问题，2个结构体混淆了，可能会导致程序崩溃。
用g++编译的时候，g++并没有报错。
有没有方法，能主动发现类似的错误？
main.cpp
typedef struct key_info_s{
std::string key;
std::string value;
std::string key2;
int a[10];
~key_info_s(){
log_info("main::key_info_s: delete ,size=%d", sizeof( struct key_info_s));
}
}KEY_INFO_T;test_fun.cpp
typedef struct key_info_s{
public:
int x;
int y;
std::string key;
std::string value;
int a;
int b;
int c;
~key_info_s(){
log_info("test_fun::key_info_s: delete");
}
}KEY_INFO_T;下面的源码，运行时会直接崩溃。
而且，看打印，test_fun.cpp里面的变量，析构时，会调用main.cpp里面的析构函数。
main.cpp
#include <stdio.h>
#include <string>
#include <vector>
#include <unistd.h>
#define ht_log_info(xx,args...) fprintf(stderr, xx"\n", ##args)
int test_key_fun1();
int test_key_fun2();
int test_key_fun3();
int a;
typedef struct key_info_s{
std::string key;
std::string value;
~key_info_s(){
ht_log_info("main::key_info_s: delete ,size=%d", sizeof( struct key_info_s));
}
}KEY_INFO_T;
class KEY_ITEM_T{
std::string key;
std::string value;
int a;
int b;
int c;
};
int main()
{
// test_key_fun2();
test_key_fun3();
test_key_fun1();
KEY_INFO_T aaaa;
while(1)
{
usleep(1e6);
int a = 34;
int b= 34;
int c = a + b;
ht_log_info("c=%d", c);
}
return 0;
}
test_fun.cpp
static int m_test_key1=13;
#include <stdio.h>
#include <string>
#include <vector>
#define ht_log_info(xx,args...) fprintf(stderr, xx"\n", ##args)
typedef struct key_info_s{
int x;
int y;
std::string key;
std::string value;
int a;
int b;
int c;
~key_info_s(){
ht_log_info("test_fun.cpp::key_info_s: delete ,size=%d", sizeof( struct key_info_s));
}
}KEY_INFO_T;
class KEY_ITEM_T{
public:
int x;
int y;
std::string key;
std::string value;
int a;
int b;
int c;
};
static std::vector<KEY_INFO_T> m_key_info_list;
extern int a;
int test_key_fun1()
{
KEY_INFO_T key_info;
key_info.x = 11;
key_info.y = 12;
key_info.key = "abcd";
key_info.value = "123";
key_info.a = 21;
key_info.b = 22;
key_info.c = 23;
m_key_info_list.push_back(key_info);
KEY_INFO_T &key_info2 = m_key_info_list[0];
ht_log_info("size=%d, [%d][%d][%s][%s]", sizeof(KEY_INFO_T), key_info2.x, key_info2.y, key_info2.key.data(), key_info2.value.data());
ht_log_info("size=%d, [%d][%d][%d]", sizeof(KEY_INFO_T), key_info2.a, key_info2.b, key_info2.c);
return 0;
}
int test_key_fun2()
{
ht_log_info("test_key_fun2:m_test_key1=%d", m_test_key1);
ht_log_info("a=%d", a);
ht_log_info("a=%lf", a);
return 1;
}
static std::vector<KEY_ITEM_T> m_key_item_list;
int test_key_fun3()
{
KEY_ITEM_T key_info;
key_info.x = 11;
key_info.y = 12;
key_info.key = "abcd";
key_info.value = "123";
m_key_item_list.push_back(key_info);
KEY_ITEM_T &key_info2 = m_key_item_list[0];
ht_log_info("size=%d, [%d][%d][%s][%s]",sizeof(KEY_ITEM_T), key_info2.x, key_info2.y, key_info2.key.data(), key_info2.value.data());
return 0;
}
2个源文件的具体内容，写在这里。
main.cpp
test_fun.cpp