#include <string>
#include <cstring>
#include <iostream>

int main()
{
    std::string input("Foo Bar Hash Bang");
    std::string keyword("Bar");
    
    const char* inputStart = input.c_str() + 4; // at 'B'
    std::cout << "memcmp=" << std::memcmp(inputStart, keyword.c_str(), keyword.length()) << "\n";

    std::cout << "compare=" << input.compare(4, keyword.length(), keyword) << "\n";

    return 0;
}