Question

I need a function middle that accepts a string and returns the middle character if there are an odd number of characters and the two middle characters if there are a even number of characters in the string in C++ for a program I am writing unfortunately I cannot find anything pre-made for an example thats in c++

Answer 1

std::string middleCharacters(const std::string &str)
{
    if (str.length() <= 0) return ""; // For an empty string, return an empty string (customize this as desired)
    return str.substr((str.length() - 1) / 2, 2 - str.length() % 2);
}

For proof that this works: http://ideone.com/vId2l