vector容器如何全部释放？

nicehero

同上

secondage

clear()

ddrmsdos

.clear();

千里马肝

the method clear only set the size of vector to 0 it's not "clear" the memory used yet

for "clear" the used memories of vector, you could wrote like thie:
std::vector<int> sss;
sss.swap(std::vector<int>());

xgreenclover

Does "vector.resize(0);" work?

ricohcanon

能不说E文吗?让我们这些不懂E文但又好学的同学也学习一下,长长见识呢?马兄和鱼兄.

千里马肝

1. Using vector and deque by Herb Sutter (GotW #54)
2. Item 17: Use "the swap trick" to trim excess capacity by Scott Meyers (Effective STL, Item 17)

lingjingqiu

1.vector离开scope以后，释放。
2.当resize()或者通过别的方法清空，内存并不一定释放。具体的需要参照源码。
3.使用the swap trick。