在下面的代码中，函数内手动分配的内存不应该在heap中不会被自动释放吗，为什么最后在主程序中的两个cout为空呢
#include<bits/stdc++.h>
using namespace std;
class test {
public:
int val = 1;
};
void fun(test* t) {
t = new test();
cout << t->val << " " << t << "\n";
}
void func(char* a)
{
a = new char('a');
cout << *a << " " << a << "\n";
}
int main()
{
char *a = NULL;
func(a);
test *b = NULL;
fun(b);
cout << "-----\n";
cout << *a << " " << a << "\n";
cout << b->val << "\n";
} 
全部评论
(0) 回帖