Code to check the balanced brackets in input

#include <iostream>
#include <stack>
#include <string>

struct Bracket {
    Bracket(char type, int position):
        type(type),
        position(position)
    {}

    bool Matchc(char c) {
        if (type == '[' && c == ']')
            return true;
        if (type == '{' && c == '}')
            return true;
        if (type == '(' && c == ')')
            return true;
        return false;

    }

    char type;
    int position;
};


int main() {
    std::string text;
    getline(std::cin, text);
    int z;
    int len = text.size();

    std::stack <Bracket> opening_brackets_stack;
    for (int position = 0; position < len ; ++position) {
        char next = text[position];
        Bracket brackObj(next,0);

        if (next == '(' || next == '[' || next == '{') {
            opening_brackets_stack.push(brackObj);
        }

        if (next == ')' || next == ']' || next == '}') {

            if(brackObj.Matchc(next) == false || opening_brackets_stack.empty() == false)
            {
               z = position;
            }

            else
            {
                opening_brackets_stack.pop();
            }
        }
    }

    if (opening_brackets_stack.empty()==true)
    {
        std::cout << "Success";
    }

    else
    {
        std::cout << z;
    }
    return 0;
}