http://d.puremagic.com/issues/show_bug.cgi?id=9198
Summary: Vararg functions don't respect IFTI rules
Product: D
Version: unspecified
Platform: All
OS/Version: All
Status: NEW
Severity: normal
Priority: P2
Component: DMD
AssignedTo: nob...@puremagic.com
ReportedBy: monarchdo...@gmail.com
--- Comment #0 from monarchdo...@gmail.com 2012-12-23 01:49:23 PST ---
I'm not sure *what* said rules are, but as observed here:
https://github.com/D-Programming-Language/phobos/pull/1010#discussion_r2418181
The root issue is that IFTI should cast an immutable slice to a slice of
immutables, but that doesn't happen with varargs:
//----
import std.stdio;
void foo1(Range)(Range)
{
writeln("Foo1: ", Range.stringof);
}
void foo2(Ranges...)(Ranges)
{
writeln("Foo2: ", Ranges[0].stringof);
}
void main()
{
immutable(int[]) a = [1, 2, 3];
foo1(a);
foo2(a);
}
//----
Foo1: immutable(int)[]
Foo2: immutable(int[])
//----
I'm not sure what the rules are, but I'd expect seeing something consistent in
any case.
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