Q:
What is a reentrant function?
belongs to collection: Embedded C interview questions and answers (2022)
Embedded C interview questions and answers (2022)
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C programming
Answer:
In computing, a computer program or subroutine is called reentrant if it can be interrupted in the middle of its execution and then safely be called again (“re-entered”) before its previous invocations complete execution. The interruption could be caused by an internal action such as a jump or call, or by an external action such as an interrupt or signal. Once the reentered invocation completes, the previous invocations will resume correct execution.
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