// Copyright (c) 2019 Edwin S. Pratt // // Update 04/10/2019: // * Re-factor code to make it easier to use and understand. #include #include // These are the valid options which the user may input: // BITS: Get the size of the file in bits. // BYTES: Get the size of the file in bytes. // KILOBYTES: Get the size of the file in kilobytes. // MEGABYTES: Get the size of the file in megabytes. // GIGABYTES: Get the size of the file in gigabytes. // TERABYTES: Get the size of the file in terabytes. // ALL: Get the size of the file in all available options. enum Options { BITS, BYTES, KILOBYTES, MEGABYTES, GIGABYTES, TERABYTES, ALL, UNKNOWN_OPTION }; Options inputOption(const std::string &input) { // Return a valid option code from the input. if (input == "b" || input == "bits") { return BITS; } else if (input == "B" || input == "bytes") { return BYTES; } else if (input == "kb" || input == "Kb" || input == "kB" || input == "kilobytes") { return KILOBYTES; } else if (input == "mb" || input == "Mb" || input == "mB" || input == "megabytes") { return MEGABYTES; } else if (input == "gb" || input == "Gb" || input == "gB" || input == "gigabytes") { return GIGABYTES; } else if (input == "tb" || input == "Tb" || input == "tB" || input == "terabytes") { return TERABYTES; } else if (input == "all" || input == "All" || input == "aLl" || input == "alL" || input == "aLL" || input == "ALL") { return ALL; } else { return UNKNOWN_OPTION; } } void printBits(const unsigned long long int &input) { unsigned long long int output; // 1B = 8 bits output = input * 8; std::cout << "Bits: " << output << std::endl; } void printBytes(const unsigned long long int &input) { // I know this function is unecessary, but I made it so that the main() function can be cleaner. std::cout << "Bytes: " << input << std::endl; } void printKilobytes(const unsigned long long int &input) { long double output; // 1kB = 1024 Bytes output = input / 1024; std::cout << "Kilobytes: " << output << std::endl; } void printMegabytes(const unsigned long long int &input) { long double output; // 1MB = 1024kB output = input / 1024; // kB output /= 1024; // MB std::cout << "Megabytes: " << output << std::endl; } void printGigabytes(const unsigned long long int &input) { long double output; // 1GB = 1024MB output = input / 1024; // kB output /= 1024; // MB output /= 1024; // GB std::cout << "Gigabytes: " << output << std::endl; } void printTerabytes(const unsigned long long int &input) { long double output; // 1TB = 1024GB output = input / 1024; // kB output /= 1024; // MB output /= 1024; // GB output /= 1024; // TB std::cout << "Terabytes: " << output << std::endl; } int main() { std::cout << "Ultimate File Sizes (v4.0.0)\n" << "----------------------------\n\n" << "Usage:\n" << "1. On the first line, type in the option. See the available options below:" << " Type b or bits to get the file size in bits.\n" << " Type B or bytes to get the file size in bytes.\n" << " Type kb or kilobytes to get the file size in kilobytes.\n" << " Type mb or megabits to get the file size in megabytes.\n" << " Type gb or gigabits to get the file size in gigabytes.\n" << " Type tb or terabits to get the file size in terabytes.\n" << " Type all to get the file size in all of the options.\n" << "2. On the second line, type in the number of characters in the file.\n" << std::endl; std::string option; unsigned long long int inputNumberChars; std::cout << "Option: "; std::cin >> option; std::cout << option; std::cout << "\n\nNumber of characters in the file: "; std::cin >> inputNumberChars; std::cout << inputNumberChars << "\n" << std::endl; switch (inputOption(option)) { case BITS: printBits(inputNumberChars); break; case BYTES: printBytes(inputNumberChars); break; case KILOBYTES: printKilobytes(inputNumberChars); break; case MEGABYTES: printMegabytes(inputNumberChars); break; case GIGABYTES: printGigabytes(inputNumberChars); break; case TERABYTES: printTerabytes(inputNumberChars); break; case ALL: printBits(inputNumberChars); printBytes(inputNumberChars); printKilobytes(inputNumberChars); printMegabytes(inputNumberChars); printGigabytes(inputNumberChars); printTerabytes(inputNumberChars); break; default: std::cout << "Invalid option: " << option << " Please look at the list of options above." << std::endl; break; } return 0; }