How to check if the input number integer not float?

Question

I want to check if the input is valid, but when i do run this code I see that it checks only input for charcters. If i input a float number it will take it and going t

Answer 1

The code below should be able to do what you are hoping to achieve:

#inclide 
using namespace std;
int n;
cout << "Your input is: "<> n) || cin.get() != '\n') {
    cout << "Error. Number of elements must be integer. Try again: " << endl;
    cin.clear();
    cin.ignore(256, '\n');  
}

The program asks the user to re-enter an integer if either of the following happens:

1. If the program is unable to extract an integer from the std::cin stream. (For example, when a character or string is entered by the user)
2. If, after an integer is extracted successfully, the next character in std::cin is not the new line '\n' character. (For example, when a number with a decimal point like 1.1 is entered, or when an integer followed by a character like 1a is entered.)