Function hex_str_to_int

include/boost/stacktrace/detail/addr_base.hpp:33–43

};

inline uintptr_t hex_str_to_int(const std::string& str) {
    uintptr_t out;
    std::stringstream ss;
    ss << std::hex << str;
    ss >> out;
    if(ss.eof() && !ss.fail()) { // whole stream read, with no errors
        return out;
    } else {
        throw std::invalid_argument(std::string("can't convert '") + str + "' to hex");
    }
}

// parse line from /proc/<id>/maps
// format: