vector在堆上还是在栈上(等待自己慢慢领悟吧)
探索1:
ME:: L, vector变量是存放在堆上还是栈上的?网上说法不一,我也没有找到权威的表述
L: 堆、栈 和vector有啥关系?
L: 你把它放哪里,它就在哪里
ME: [分享]堆、栈的地址高低? 栈的增长方向? https://www.zhihu.com/question/36103513?sort=created
ME: 这个例子作者认为vector在堆上.
L: vector管理的内存在堆上
L: vector对象本身在栈上
L: 你把它放哪里,它就在哪里
ME: 那他的a3[1]还是在堆上吗
L: 在
ME: 那a3是在栈上吧?
L: 在栈上定义的对象,就在栈上
ME: OK
不知哪里来的说法:
无论你的定义是:
vector<int*> *p = new vector<int*>;
还是
vector<int*> p;
其元素都是在堆上进行分配。
别的论述:
https://www.it1352.com/454497.html
vector<Type> vect;
will allocate the vector, i.e. the header info, on the stack, but the elements on the free store ("heap").
vector<Type> *vect = new vector<Type>;
allocates everything on the free store.
vector<Type*> vect;
will allocate the vector on the stack and a bunch of pointers on the free store, but where these point is determined by how you use them (you could point element 0 to the free store and element 1 to the stack, say).