This is an extension, aiming to make using the language more convenient, by not having to duplicate the variable name when trying to declare and assign a value to it, example:

auto thing; thing = value;

would become

auto thing = value;

this was attempted in #170 but the author abounded the PR.

about automatic vector initialization syntax, auto list 3 = {1, 2, 3}; seems natural, but it does create a discrepancy with the regular assign binary operation, other options would be:

• auto list 3 {1, 2, 3};
• just don't support initialization for vectors

also should we update all the examples/tests to use the new syntax or leave then as-is ?