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What is an inline function?

(a) A function that is expanded at each call during execution

(b) A function that is called during compile time

(c) A function that is not checked for syntax errors

(d) A function that is not checked for semantic analysis

This question was addressed to me by my college director while I was bunking the class.

The above asked question is from Functions topic in division Functions, Namespaces & Exceptions in C++ of C++

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Right choice is (a) A function that is expanded at each call during execution

The best I can explain: Inline function is those which are expanded at each call during the execution of the program to reduce the cost of jumping during execution.

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