After each } i write a ;
And let the compiler tell me it is an empty instruction.
What are the general rules where ; is not needed after a }

On Tuesday, 18 May 2021 at 16:27:13 UTC, Alain De Vos wrote:

Is ; ever needed after a }?

I guess in void delegate() dg = { writeln!"Hello World"; };, but that hardly counts, because it belongs to the variable declaration, not the {}.

On Tuesday, 18 May 2021 at 16:27:13 UTC, Alain De Vos wrote:

This is a good question, I'm not sure I can provide a concise answer.

In general you don't need a ; after }

The ; is used to end a statement, but I don't know how to define that and distinguish it from an expression.

The {} create a block of code, usually they will contain statements, so it would be common to see ; inside.

The only real time I would expect a }; is when you're defining a lambda/delegate and assigning to a variable.

auto Foo = X;

If X is something that ends with } we will still expect a ; to end the statement.

On Wednesday, 19 May 2021 at 13:46:55 UTC, Jesse Phillips wrote:

An expression has a value. A statement doesn't.

You can add a ; at the end of an expression to make a statement from it. When you do, the value of that expression is discarded.

It seems I need }; for a function a delegate and an alias.

double function(int) F = function double(int x) {return x/10.0;};
double delegate(int)   D = delegate double(int x) {return c*x/10.0;};
alias myfunx=function int(int number) { return number; };