Learn and Master C Programming - #error' preprocessor directive

The video tutorial explains the hash error directive, which emits a user-specified error message during compilation and halts the process. It is useful for ensuring code is only compiled on specific platforms, such as Windows. The preprocessor checks for platform definitions and executes the hash error if conditions are not met, stopping compilation immediately.

What is the purpose of the Hash Error directive during compilation?

In what scenario would you use a Hash Error directive in your code?

How does the preprocessor determine whether to execute the Hash Error directive?

What happens when the preprocessor encounters a Hash Error directive?

What is the outcome of using a Hash Error directive if the defined condition is not met?