Nested functions

Some languages allow nested functions (or procedures, or subroutines, or whatever you prefer to call them), others don't.

I think those can be useful and I wonder why they aren't embraced by all living programming languages.

Harmful go to (heck)

Check at compile time if a going-to-be-stringified symbol is a member of a struct

I wanted a string which must “contain” the name of a member of a struct. The compiler should check the right spelling (at compile time).

At last I have found a possible reason to use the comma operator…

Join us and work from home

Torvalds, the creator of the Linux kernel.

Overloading reloaded (C)

In Overloading so much I've forgotten C11 and its _Generic I've talked about in Type-generic functions (overloading) in C11.

Length at compile time

How do you get the length of a string literal in C?

Type-generic functions (overloading) in C11

As per Michael Stoffregen suggestion in the comment, I've tried to move arguments outside and it worked (even with gcc 4.9.2)! So I can finally say C(11) has Fortran-like function “overloading” — type generic functions.

I have often wondered why C hasn't any kind of function overloading. The typical answer is that we don't want to live with name mangling in C — the hell of the C++ — that would break a lot of things which must stay as they are. I agree… except that you don't need to implement it the C++ way when you have a bright example like Fortran.