C++ equivalent of Python dictionaries

Question

I\'m currently making a tic-tac-toe program with AI and i\'m having a bit of a trouble translating this line of code (python) :

RANKS = dict([(4,3),                      


        

Answer 1

The C++ equivalent of Python's dict is std::map. To initialize a map using a similar syntax, do this:

std::map myMap = {{4,3},                       # center  = 3
                           {0,2},{2,2},{6,2},{8,2},     # corners = 2
                           {1,1},{3,1},{5,1},{7,1}};    # sides   = 1

Note that this needs C++11.

If you cannot use C++11, turn to map_list_of in Boost.Assign. The example from their page is:

using namespace boost::assign; // bring 'map_list_of()' into scope
std::map next = map_list_of(1,2)(2,3)(3,4)(4,5)(5,6);