On Saturday, 21 July 2018 at 13:13:11 UTC, Mike Parker wrote:
On Saturday, 21 July 2018 at 12:17:54 UTC, Greatsam4sure wrote:
Sorry for the typo. This is the problem
auto arithmetic(T, V, U)(T a, V b, U op){
return mixin("a"~op~"b");
}
//call like this
arithmetic(1.5,2.5,"+");
Compiler says the variable op is not reach at compile time.
So how can the varible a and b be reach at compile time and op
is not reach. I will appreciate any help. I have also use a
static if but the same complain. Just a newbie in D
You aren't using a or b at compile time -- you're using the
string literals "a" and "b", which have nothing at all to do
with a and b. In order to get what you want, you need to make
op a template parameter like this:
auto arithmetic(string op, T, V)(T a, V b)
{
mixin("a"~op~"b");
}
arithmetic!("+")(1.5, 2.5);
Thanks Sir. Really appreciate your reply it works for me. I also
want to thank you for all your labour in the dlang ecosystem or
foundation. I read about the dlang announce group every day. I
will also want update to dlang this week or close it down or
redirect to the announce group directly
