On Thursday, 26 May 2016 at 15:51:39 UTC, Basile B. wrote:
Oh, I'm so sorry ! I totally missed the point of the Q.
float.nan is not a "unique" value. Several values verify "nan"
(Look at std.math.isNan). So I suppose it's simpler to test
for nullity. Though with the sign there's also two possible
0...
void main(string[] args)
{
writeln(float.nan == float.init); // false
import std.math: isNaN;
writeln(isNaN(float.nan)); // true
writeln(isNaN(float.init)); //true
}
So the shortcut in the compiler might be more simple, there is
only a single test for "if(myFloat)"...
im just playing with this template[1] is there anything else i
missed? (if you dont mind)
it basically treats any T.init as false and skips the
function/delegate and just returns type.
[1] https://dpaste.dzfl.pl/d159d83e3167
