#ifndef MY_HEADER_H #define MY_HEADER_H float FtoC(int fah); float CtoF(int cel); #endif /* #ifdef VERBOSE if (enter_num = 1) { std::cout << i << "F to C " << std::endl; std::cout << i << " - 32 * (5/9)" << std::endl; std::cout << "C = " << CtoF(i) << std::endl; } else { std::cout << i << "C to F " << std::endl; std::cout << i << " (9/5) + 32" << std::endl; std::cout << "F = " << CtoF(i) << std::endl; }; #endif; */