On Thursday, 24 October 2019 at 14:08:36 UTC, 9898287 wrote:
Does this contain any undefined behavior? It is in C as far as I knew.
immutable int number = 1; auto bad_idea = (cast(ubyte*) &number)[0 .. number.sizeof]; bad_idea[0] = 2; writeln(number); //1 writeln(*(cast(int*)bad_idea.ptr)); //2Cast is a powerful tool and with it you can destroy all type systems guarantees. In your case you will not have any problems just stay away from const and immutable