C++ Question

Why this throws an error?

// cpp

size_t MyString::rfind(char c, size_t pos) const { while (pos != -1) { if (s.at(pos) == c) { return pos; } else { return pos--; } }

return -1; }

// main

int main() {

const MyString testMyString = "0123456789";

cout << testMystring.rfind("648") << endl;

cout << testMystring.rfind("648", 20) << endl;

}