C++之objectarx 自定义类型key，重载操作符

.h文件

#pragma once
#include<iostream>
#include<map>
#include<string>

typedef struct test_map {

void test(void);
test_map(AcGePoint3d sa)
{
_sa = sa;
//_sb = sb;

}

#if 1
bool operator < (const test_map & test1) const
{
return _sa.x < test1._sa.x;

}
#endif
#if 0
bool operator == (const test_map & test1) const
{
return _sa.x == test1._sa.x;

}
#endif
//private: 
AcGePoint3d _sa;
//AcGePoint3d _sb;

}t_m;
#if 0
template <class T>
struct Compare
{
int operator()(const T& x, const T& k) const {
if (x._sa >= k._sa) return 0;
else return 1;
}
};
#endif

main。cpp

std::map<t_m, CString> test;
t_m ts1(AcGePoint3d(4,0,0));

test.insert(std::make_pair(ts1, _T("dada")));

CString str = test[AcGePoint3d(4, 0, 0)];