How to Capture Keystrokes Immediately in C ?

Input Collection with Immediate Key Response

In C , input collection from the keyboard typically involves utilizing the cin function. However, the default behavior of cin requires the user to press the enter key to complete character input.

Problem:

To achieve immediate character input and subsequent code execution, the following code fails to deliver the desired result:

<code class="cpp">char c;
cin >> c;
cout << "Something" << endl;</code>

While cin.get() or cin.get(c) read a single character, they still await input finalization by pressing the enter key.

Solution:

To simulate "Press any key to continue," platform-specific functions like system() can be used:

• Windows:

<code class="cpp">system("pause");</code>

• Mac and Linux:

<code class="cpp">system("read");</code>

Usage:

Both system("pause") and system("read") effectively output "Press any key to continue..." and wait for any key to be pressed, facilitating immediate character input and moving to the next line of code.

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