c++ vector指针变量进行reserve出现段错误

Question

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

c++ vector指针变量进行reserve出现段错误是什么原因？

vector<int>* pp;
pp->reserve(5);
如上代码会出现段错误，但是如果把不用指针则不会段错误。
如下代码则不会出现段错误：

vector<int> pp;
pp.reserve(5);

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1 Answer

深蓝 · Answer 1 · 2021-01-24T02:49:50+0000

answered Jan 24, 2021 by 深蓝 (71.8m points)

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