LearningCPP/main.cpp

#include <iostream>
#include <random>
#include <chrono>

using string = std::string;
void ignoreTillLineEnd();
string promptfs(string);
int promptfi(string);

int main()
{
    std::mt19937 rand {std::random_device{}()};
    std::uniform_int_distribution clamp {1, 10};
    string name {promptfs("Enter your name:")};
    std::cout << "Hello " << name << ", welcome to guess the number.\n";
    bool once {};
    int num {clamp(rand)}, ent {};
    do {
        if (once) std::cout << "You Guessed Wrong!\n";
        ent = promptfi("Enter your guess:");
        once = true;
    }
    while (num != ent);
    std::cout << "Well done " << name << ", you guessed correctly!\n";
    return 0;
}

void ignoreTillLineEnd() {
    std::cin.ignore(std::numeric_limits<std::streamsize>::max(), '\n');
}

string promptfs(string msg) {
    bool once {};
    string toret {};
    do {
        if (once) {
            std::cin.clear();
            ignoreTillLineEnd();
            std::cout << "Input Failure!\n";
        }
        std::cout << msg << "\n";
        std::cin >> toret;
        once = true;
    }
    while (std::cin.fail());
    ignoreTillLineEnd();
    return toret;
}

int promptfi(string msg) {
    bool once {};
    int toret {};
    do {
        if (once) {
            std::cin.clear();
            ignoreTillLineEnd();
            std::cout << "Input Failure!\n";
        }
        std::cout << msg << "\n";
        std::cin >> toret;
        once = true;
    }
    while (std::cin.fail());
    ignoreTillLineEnd();
    return toret;
}