Is there a use for function declarations inside functions?

Question

We can declare functions inside functions (I wanted a local variable, but it parses as a function declaration):

struct bvalue;
struct bdict {
    bd         


        

Answer 1

Are the sole reasons "because it makes the parser simpler" and "because the standard says so"

Yea, basically.

Everything that can be a function declaration, is a function declaration.

Unfortunately it's one of those "just is" cases.