function argument restrictions for templated struct
Laeeth Isharc via Digitalmars-d-learn
digitalmars-d-learn at puremagic.com
Mon Sep 7 08:51:28 PDT 2015
Hi.
Is there a more elegant way to write the template arg
restrictions for display?
Thanks.
Laeeth
import std.stdio;
import std.traits;
struct Bar(bool test)
{
double a;
static if(test)
double b;
}
void display(T)(T a)
if (__traits(isSame, TemplateOf!(T), Bar))
{
writefln("%s",a);
}
void main(string[] args)
{
auto a=Bar!false(1.0);
auto b=Bar!true(1.0,2.0);
a.display;
b.display;
}
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