C++出现error: 'class std::vector<int, std::allocator<std::basic_string<char> > >' has no member named 'deallocate'
代码如下:
class SpeechManager { public: vector<vector<int>> vec; //保存第一轮、第二轮、决赛选手编号 map<int, Speaker> m_Speaker; //所有选手信息-编号+选手类 vector<int> m_RandomV; //抽签顺序存放容器 int m_Index; //当前轮数 vector<int, vector<string>> m_Records; //往届记录 }
编译出错:
D:\software\destination\Qt5.6.1\Tools\mingw492_32\i686-w64-mingw32\include\c++\bits\alloc_traits.h:383: error: 'class std::vector<int, std::allocator<std::basic_string<char> > >' has no member named 'deallocate'
{ __a.deallocate(__p, __n); }
^
分析解决:
分析error后的提示,对于vector容器来说,里面存放的只有一种类型的数据,而在C++的常见容器中,只有map/multimap支持键值对存放形式,所以将存放往届记录的类成员变量的类型设置为map<int, vector<string>>即可