std :: vector到本机数组 [英] std::vector to native array

问题描述

为此原型提供功能

Given a funcition with this prototype

void Func(int* elements, int count);

这是

Is this

vector<int> v;
v.push_back(1);
Func(&*v.begin(), v.size());

安全的?还是应该给Func打电话?以可移植的方式，我的意思是.向量可以通过某种方式保证数组的内存空间吗?

safe? Or how should I call Func? In a portable way, I mean. Does vector guarantee the memory layot of my array in some way?

推荐答案

安全！
确保向量的元素连续存储.

http://www.cplusplus.com/reference/stl/vector/

Safe!
It''s guaranteed that the elements of a vector are stored contiguously.

http://www.cplusplus.com/reference/stl/vector/

这篇关于std :: vector到本机数组的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！