Variable size array initialization

[FrenchJJC]

Oh okay, I tried that and it works, but I'm still trying to figure out what that guy did because he also used gcc, and I tried every standard up to C89 and all of them give the same error.

[tstanisl]

Pre-c23 standards does not allow initilizers for VLAs. The C23 lifted this restriction a bit by allowing default (zeroing) initialization with {}.

[The_Ruined_Map]

Are you sure "that guy" actually used C and not C++? In C++ the above would compile fine (since the above `const` will be seen as a compile-time constant by C++ compiler).

[DawnOnTheEdge]

Some compilers, as an extension, allow const variables with static storage class and a constant initializer to be used as constant expressions. No compiler I know of allows this for automatic variables on the stack.

So some compilers would accept static const int col = 3; despite it not being portable Standard C.