What is a reentrant function?

1.	What is a reentrant function?
Answer» A function is CALLED reentrant if the function can be INTERRUPTED in the middle of the execution and be safely called again (re-entered) to complete the execution. The interruption can be in the form of external EVENTS or signals or internal signals like CALL or jump. The reentrant function RESUMES at the point where the execution was left off and proceeds to completion.

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