LearningCPP/main.cpp

#include <iostream>

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

int main()
{
    int nameC {promptfi("Enter the number of names:")};
    if (nameC < 1) {
        std::cout << "No names to be entered!\n";
        return 1;
    }
    string* names = new string[nameC];
    for (int i = 0; i < nameC; i++) names[i] = promptfs("Enter your name:");
    std::cout << "I have " << nameC << " to say hello to!\n";
    for (int i = 0; i < nameC; i++) std::cout << "Hello " << names[i] << ".\n";
    return 0;
}

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

string promptfs(string msg) {
    bool once {false};
    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 {false};
    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;
}