What are some examples of inline functions in programming?

What are some examples of inline functions in programming?

Inline functions are functions defined within the body of another function. They can improve performance by reducing function call overhead. For example, in C++, you can define an inline function like this:

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

This function can be called like a regular function, but the compiler may replace calls to it with the function's code to optimize performance.

Can you give me another example in JavaScript?

Sure! In JavaScript, you can use arrow functions as inline functions. Here's an example:

const add = (a, b) => a + b;

You can use this inline function directly in your code, like so:

console.log(add(5, 3)); // Outputs: 8

Are there any downsides to using inline functions?

Yes, while inline functions can improve performance, they can also increase the size of the binary if used excessively, as the function code is duplicated at each call site. This can lead to larger executable sizes and potentially impact cache performance.