gistfile1.d

#!/usr/bin/env rdmd
import std.conv;
import std.exception;

version(unittest) {}
else
void main()
{
    // Error: static assert  "The error handler's return value(void) does not have a common type with the expression(int)."
    int x = "x".to!int.ifThrown!ConvException((e) {
            throw new Exception("throwing another exception");
        });

    // こっちは動く
    int y = "y".to!int.ifThrown!ConvException((e) {
            throw new Exception("throwing another exception");
            return int.init;
        });
}