Excellent, didn't know that you could reference previous function arguments :) Though I do feel that this is something different from VLAs (no critique of the

Excellent, didn't know that you could reference previous function arguments :) Though I do feel that this is something different from VLAs (no critique of the article though!). In my head at least the key factor about VLA is that you can allocate an array on the stack when the size isn't known at compile time. But that is not what the author does. A VLA as specified in a function definition or a declaration (such as: void f(int n, float v[n]);) is known at compile time. And even if trickery is used to do a runtime-calculation of [n] the array itself is not allocated on the stack. And thus also not subject of the common criticism of VLAs. So, at least in my opinion the arguments (discussed in this threadl) regarding VLAs is mostly orthogonal to the syntax (ab)used here.