What are inline functions in C++?

What are inline functions in C++?

Inline functions in C++ are functions defined with the keyword 'inline' that suggest to the compiler to insert the function's body directly into the code where the function is called, rather than performing a traditional function call.

What are the benefits of using inline functions?

The benefits include reduced function call overhead, improved performance for small functions, and potential optimization by the compiler.

Are there any downsides to using inline functions?

Yes, downsides include increased code size if the function is large or used frequently, and potential issues with debugging.

Can you give me an example of an inline function?

Sure! Here's a simple example:

inline int add(int a, int b) {
    return a + b;
}

This function can be called like a regular function, but the compiler may replace it with the actual code.