std::set进行排序并删除重复数据

#include <iostream>
#include <set>
#include <string>
using namespace std;

struct  A
{
string ssName;
string ssSex;
int nAge;
};

class ASortByName
{
public:
bool operator()(const A& a,const A& b)
{
if (a.ssName.compare(b.ssName) < 0)
{
return true;
}
else if (a.ssName.compare(b.ssName)==0 && a.ssSex.compare(b.ssSex)<0)
{
return true;
}
else
{
return false;
}
}
};

struct Test
{
static const auto i = 0;
int j = 1;
};

int main(int argc, char* argv[])
{
A a = {"wanglj","man",30};
A b = {"liuting","femail",30};
A c = {"wanglj","fan",30};
set<A,ASortByName> setA;
setA.insert(a);
setA.insert(b);
setA.insert(c);
for (auto iter = setA.begin(); iter != setA.end(); ++iter)
{
cout << iter->ssName << "\t" << iter->ssSex << "\t" << iter->nAge << endl;
}

}