[Bug c++/51352] g++ can't pass variable-length array as a function argument

[paolo.carlini at oracle dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=51352

--- Comment #5 from Paolo Carlini <paolo.carlini at oracle dot com> ---
We have this comment in cp_parser_direct_declarator:

          /* Normally, the array bound must be an integral constant
             expression.  However, as an extension, we allow VLAs
             in function scopes as long as they aren't part of a
             parameter declaration.  */
          cp_parser_error (parser,
                   "array bound is not an integer constant");

thus the limitation is well known (to the author of the parser at least ;)