Symbol id instead of the actual symbol

Question

vector<vector<int>> mapVector(maxX, vector<int>(maxY));
char* mapBuffer = new char[mapString.size() + 1];
...
mapVector[i][j] = mapBuffer[y];
...

mapBuffer[i][j] contains the '#" symbol but after the "mapVector[i][j] = mapBuffer[y]" mapVector[i][j] contans number "35". Why is it passing on the id instead of the symbol?

Answer 1

Here is how to see the data using printf:

#include <stdio.h>
int main (int argc, char **argv){
    char test='#';
    printf("test %c %d\n", test,test);
    return 0;

}

%c renders as a char %d renders as an int

(The above is in C but that part of C that will be compiled by a C++ compiler)

So in your code if you change your vector to a vector of char you will not have the issue:

 vector<vector<char>> mapVector(maxX, vector<char>(maxY));
 char* mapBuffer = new char[mapString.size() + 1];
 ...
 mapVector[i][j] = mapBuffer[y];
 ...