My Kingdom For ...

[Don Clugston]

Janice Caron wrote:
> On 22/02/2008, Derek Parnell <derek at nomail.afraid.org> wrote:
>> Compile with the "-w" switch. It checks for 'missing' return paths.
> 
> Ah great! Thanks. That will help a lot.
> 
> I thought D didn't have warnings, but obviously I was wrong.
> 
> It's a shame you can't /selectively/ enable warnings, because I don't
> actually want to be warned about "length" shadowing. Still - it's
> better than it's being an error. In general, I'd prefer that /all/
> shadowing should be allowed. But that's another debate.
> 
> Anyway, thanks for the info. Will definitely be using -w from now on.

Really, 'missing return value' should be an error, not a warning. Unfortunately 
-w is horribly broken. It generates some nasty spurious errors. For example, it 
won't let you perform a bitwise operation on anything other than an int.

short a;
short b = a | a; // won't compile with -w !!!!