On Saturday, 10 September 2016 at 14:24:23 UTC, ag0aep6g wrote:
On 09/10/2016 04:10 PM, pineapple wrote:
I've got a struct and it would be very convenient if I could
specify
what happens when I write `if(value)` - is this possible?
`if (value)` implies a cast to bool. Define opCast!bool and it
gets called:
----
struct S
{
bool opCast(T : bool)() { return true; }
}
void main()
{
S value;
import std.stdio: writeln;
if (value) writeln("yup");
}
----
Huh, I could've sworn that some time ago I tried that and it
didn't work. Was this a recent addition to the language?
