Base Conversion || Convert.cpp

// main.cpp https://pastebin.com/vV3VfRGF
// Convert.h https://pastebin.com/39AvSGaj

#include "Convert.h"

Convert::Convert(){
    _base = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
}

// Converts a number from any base (binary, hex, etc.) to a decimal (base 10) number.
int Convert::tonumber(string input, int base){
    int num = 0;
    for(int i = 0; i < input.length(); i++){
        for(int b = 0; b < base; b++){
            if(input[i] == _base[b]){
                num += b * pow(base, input.length() - i - 1);
                break;
            }
        }
    }
    return num;
}

// Converts a decimal (base 10) number to a number of any base (binary, hex, etc.).
string Convert::tobase(int input, int base){
    string num = "";
    do{
        num = _base[input % base] + num;
        input = floor(input / base);
    }while(input > 0);
    return num;
}

// Gets the number of characters available with the given base size.
string Convert::getBase(int baseSize){
    string base = _base.substr(0, baseSize);
    return base;
}