class Base {
public:
Base(int i1, int i2): ip1{new int(i1)}{
try {
ip2 = new int(i2);
} catch (std::bad_alloc& ){
delete ip1;
}
}
~Base() { delete ip1; delete ip2; }
private:
int *ip1, *ip2;
};
class Derived: public Base {
public:
Derived(int i1, int i2, int i3): Base(i1, i2), ip3(new int(i3)) {}
~Derived() { delete ip3; }
private:
int *ip3;
};
我不在Derived构造函数中使用 try-catch 。我想知道如果 ip3(new int(i3))抛出异常,ip1和ip2分配的内存是否会被删除?
答案 0 :(得分:4)
是的,但只需使用unique_ptr
和make_unique
来表示所有这些指针,就可以轻松完成同样的事情。