http://d.puremagic.com/issues/show_bug.cgi?id=6613
Summary: Can't use empty tuple as default value for variadic
template function parameter
Product: D
Version: D2
Platform: All
OS/Version: All
Status: NEW
Severity: minor
Priority: P2
Component: DMD
AssignedTo: [email protected]
ReportedBy: [email protected]
--- Comment #0 from Vladimir Panteleev <[email protected]> 2011-09-06
12:40:19 PDT ---
template Tuple(T...) { alias T Tuple; }
void f(T...)(int arg0 = 0, T argN = Tuple!());
static this() { f(); }
Compiler output:
test.d(3): Error: cannot implicitly convert expression (tuple()) of type () to
()
test.d(5): Error: template instance test.f!() error instantiating
The compiler requires a default value for argN, because it comes after another
optional argument, but it doesn't seem like an empty tuple can be specified.
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