get number with specific digit with out press on "enter" key

Question

int getGuess()
{
    int number = 0;
    int  i = 0;
    printf("Enter your guess\n");
    for (i = 1; i<=FOUR;i++)
    {
        number = number*TEN + getche();
    }   
    printf("\n");
    return number;
}

I did this code, I know that this is a function but in the function that I called to this function I print the value, and it does not work as I expected. I this is what I enter 2431 and this the real value 55759. well how could I can get integer number and without press on enter?

In MSVC you can do that with `_getch()` and there are ways in Linux too. — Weather Vane, Jan 09 '20 at 20:03
"MSVC" - Microsoft Visual C. Standard C does not have a function that will enter a character without pressing Enter. You need a language extension, which will be specific to the OS. — Weather Vane, Jan 09 '20 at 20:06
Please see this [previous question](https://stackoverflow.com/questions/421860/capture-characters-from-standard-input-without-waiting-for-enter-to-be-pressed) — Weather Vane, Jan 09 '20 at 20:10
Your question would be actually better if you added your example as text instead of as an image. — Roberto Caboni, Jan 09 '20 at 20:12
Does this answer your question? [Capture characters from standard input without waiting for enter to be pressed](https://stackoverflow.com/questions/421860/capture-characters-from-standard-input-without-waiting-for-enter-to-be-pressed) — E. Zeytinci, Jan 09 '20 at 20:40
`getch` returns the ASCII value for the digit, you must convert that to the decimal value by subtracting `'0'`, e.g. `number = number*TEN + getche() - '0';` See [ASCII Description](http://asciitable.com) — David C. Rankin, Jan 09 '20 at 21:10

score 0 · Answer 1 · answered Jan 09 '20 at 20:16

When you ask for input, the program stops. The system needs to know when the input stops and this is usually the enter key. When the input is provided, the program starts again. This is the default C behaviour. Professional developers write their own input driver to control this start/stop situation.

get number with specific digit with out press on "enter" key

1 Answers1