On Thursday, 3 September 2015 at 18:31:59 UTC, Meta wrote:
On Thursday, 3 September 2015 at 17:12:31 UTC, H. S. Teoh wrote:
Is there a way for the lexer to check for the specific
character sequence '=', '+', whitespace and not others (e.g.
'=', whitespace, '+')? IOW, "a =+ b" will be prohibited, but
"a = + b" will be allowed. If so, I agree with this.
On that note, though, the unary + operator is totally useless
in D... maybe we should get rid of that instead? (Then "=+"
will automatically be an error.)
T
Worse than useless; it doesn't even behave as you would expect.
import std.stdio;
void main()
{
auto a = -1;
writeln(+a); //Prints -1
writeln(-a); //Prints 1
}
At least unary - does something.
I didn't realize that a unary + operator existed. I would have
assumed that +a as an expression would be illegal. It doesn't
even mean anything.
- Jonathan M Davis
