c99 « length « C Array Q&A

1. Variable Length Array    stackoverflow.com

I would like to know how a variable length array is managed (what extra variables or data structures are kept on the stack in order to have variable length arrays). Thanks a ...

2. Variable length arrays C99 not supported in C    stackoverflow.com

In Visual Studio 2005, I'm trying to compile a .c file:

int i = 6;
int a[i];

3. C: constants, variable array length and C99    forums.devshed.com

My point was that gcc has (I believe) accepted variable length arrays for some time (as a non-standard language extension). Not just for C99. So the fact that it accepts variable length arrays tells us nothing with respect to C99. That it then complains that you're declaring a variable within a for loop (which is only permitted in C99, not C89) ...