On 03.03.2018 01:20, H. S. Teoh wrote:
On Fri, Mar 02, 2018 at 11:51:08PM +0000, Jonathan Marler via Digitalmars-d
wrote:
I believe I found small hole in template parameter semantics.
[...] you can't create a template that accepts a value of any type.
Not true:
template counterexample(alias T) {}
int x;
string s;
alias U = counterexample!x; // OK
alias V = counterexample!1; // OK
alias W = counterexample!"yup"; // OK
alias X = counterexample!s; // OK
alias Z = counterexample!int; // NG
The last one fails because a value is expected, not a type.
No, it fails because a "symbol" is expected, not a basic type. There
really is no good reason why int should not be accepted -- a class or
struct type would be accepted. IIRC Walter has agreed to this, and it's
just pending implementation.
