Re: about stl map class

Whether all string literals are distinct or not is implementation
dependent. Which effectively means that
int main()
{
   const char* p = "June";
   const char* q = "June";
   bool eq = p == q;

}

Whether "eq" is true or false is implementation dependent. so in the
current case whether map[p] will be same as map["June"] is
implementation dependent. Not just that, even the output of following

code is implementation dependent

#include <map>
#include <iostream>
int main()
{
   std::map<const char*, int> m;
   m["June"] = 5;
   std::cout << m["June"] << std::endl; //Is the string literal
"June" on this line same as string literal "June" on the previous
line? Implementation dependent.

}