Variable-length arrays in C89?

Question

I\'ve read that C89 does not support variable-length arrays, but the following experiment seems to disprove that:

#include 

int main()
{
   i         


        

Answer 1

GCC always supported variable length arrays AFAIK. Setting -std to C89 doesn't turn off GCC extensions ...

Edit: In fact if you check here:

http://gcc.gnu.org/onlinedocs/gcc/C-Dialect-Options.html#C-Dialect-Options

Under -std= you will find the following:

ISO C90 programs (certain GNU extensions that conflict with ISO C90 are disabled). Same as -ansi for C code.

Pay close attention to the word "certain".