What do you mean by inline function and How to implement the inline function in C++?

Answer:

The inline keyword tells the compiler to substitute the code within the function definition for every instance of a function call. However, substitution occurs only at the compiler’s discretion. For example, the compiler does not inline a function if its address is taken or if it is too large to inline.

Syntax of inline function,

inline return-type function-name(parameters)
{
    // function code
}