Error with constraints on a templated fuction

[H. S. Teoh via Digitalmars-d-learn]

On Mon, Aug 25, 2014 at 03:48:10PM +0000, Jeremy DeHaan via Digitalmars-d-learn wrote:
> I've done things like this before with traits and I figured that this way
> should work as well, but it gives me errors instead. Perhaps someone can
> point out my flaws.
> 
> immutable(T)[] toString(T)(const(T)* str)
> 	if(typeof(T) is dchar)//this is where the error is

The correct syntax is:

	if (is(typeof(T) == dchar))

When comparing two values for equality (i.e., are these two values equal
to each other), use "if (a == b)".

When comparing two variables for identity (i.e., do these two references
point to the same data), use "if (a is b)".

When comparing two types, use "is(A == B)".


T

-- 
Verbing weirds language. -- Calvin (& Hobbes)