C++STL hash_set,hash_map在哪里？,g++编译器

底层用hashtable实现
F:\x86_64-8.1.0-release-posix-seh-rt_v6-rev0\mingw64\lib\gcc\x86_64-w64-mingw32\8.1.0\include\c++\backward\hash_set

测试代码

#include<list>
#include <iostream>

#include<hash_set>
using namespace std;
using namespace __gnu_cxx;//注意namespace
int main()
{  
    hash_set<int> set;
    set.insert(3);
    cout<<set.size()<<endl;

    return 0;   
}