[Issue 8486] New: Possibly wrong interaction of Variant and const arrays
d-bugmail at puremagic.com
d-bugmail at puremagic.com
Tue Jul 31 12:37:02 PDT 2012
http://d.puremagic.com/issues/show_bug.cgi?id=8486
Summary: Possibly wrong interaction of Variant and const arrays
Product: D
Version: D2
Platform: All
OS/Version: All
Status: NEW
Severity: normal
Priority: P2
Component: Phobos
AssignedTo: nobody at puremagic.com
ReportedBy: cybevnm at gmail.com
--- Comment #0 from cybevnm <cybevnm at gmail.com> 2012-07-31 12:36:58 PDT ---
During initializing Variant, D discards top level const of array, which
leads to little unintuitive behaviour. Consider code:
import std.stdio;
import std.variant;
void main()
{
const int[] arr;
Variant v = Variant( arr );
writeln( v.peek!( typeof( arr ) )() );
writeln( v.peek!( const(int)[] )() );
writeln( v.type() );
}
...and output:
%dmd main.d && ./main.d
null
7FFF358AE298
const(int)[]
As you can see peek works successfully not for original array type, but
for type without top level const. Is Variant supposed to work in that way ?
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