I want to know the true type of Auto variable.

Question

#include <iostream>
#include <typeinfo>
using namespace std;
std::string getNameByTypeInfo(std::type_info const& iTypeInfo) {     return iTypeInfo.name(); }
#define TYPENAME(dType) getNameByTypeInfo(typeid(dType))

void func(int (&n)[2][3]) {
     for (auto& e : n)     {// <== I want to know the true type of the e variable.
         cout << TYPENAME(e) << endl;
         for(auto& p : e){
             cout << TYPENAME(p) << ":";             cout << p << endl;         
         }
     }
}
int main(void){
 int m[2][3]{{0,1,2},{3,4,5}};
 func(m); 
} 

Answer 1

Hi, @otaky

Add a break point , e is type int[3] &.

Best regards,

Minxin Yu

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