What are reentrant functions?
An example of an AI chatbot conversation about reentrant functions in programming.
Can you explain what reentrant functions are?
Sure! Reentrant functions are functions that can be interrupted in the middle of execution and safely called again ('re-entered') before the previous executions are complete.
What makes a function reentrant?
A function is reentrant if it does not rely on shared state or global variables, and it uses only local variables or parameters.
Can you give me an example of a reentrant function?
Certainly! A simple example is a function that calculates the factorial of a number using recursion, as long as it doesn't use any global variables.
Are there any downsides to using reentrant functions?
Yes, reentrant functions can be more complex to write and may have performance overhead due to the need for local state management.
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