Justin Johansson wrote:
In a templated class (D1.0) along lines ...
class Foo(T) {
//..
static T bar() { return T.init; }
//..
}
Foo!(int).bar() returns 0 and Foo!(char[]).bar() returns nil.
I'd much prefer (at least for my purposes) that (char[]).init returned an empty
string rather than effectively a null pointer. Is there a convenient solution
for this, e.g. by specializing just the bar method of class Foo when T is
char[], or by some other means?
Maybe this type of question best be asked on D.learn, but I do wonder if an
empty string is a more reasonable initializer for char[] .. well maybe not .. I
don't know .. I yield to your sensibilities.
Thanks to all.
You could use a custom type, which would solve your .init problem:
typedef string myString = "";
Or you could specialize your bar():
static T bar() {
static if(isSomeString!T)
return "";
else
return T.init;
}
I myself favor a null initializer, since char[] is a reference type, not
a value type, it only makes sense to initialize it to a null reference.
