[Issue 10961] New: Assigning a void[] to a Variant results in compiler errors.

d-bugmail at puremagic.com d-bugmail at puremagic.com
Tue Sep 3 16:35:46 PDT 2013


http://d.puremagic.com/issues/show_bug.cgi?id=10961

           Summary: Assigning a void[] to a Variant results in compiler
                    errors.
           Product: D
           Version: D2
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Phobos
        AssignedTo: nobody at puremagic.com
        ReportedBy: opantm2+dbugs at gmail.com


--- Comment #0 from Kapps <opantm2+dbugs at gmail.com> 2013-09-03 16:35:45 PDT ---
The following sample code:

import std.variant, std.stdio;
void main() {
    void[] elements = new void[4];
    Variant v = elements;
    writeln(v);
}

Results in the following compiler errors:

variant.d(425): Error: expression (*zis)[index] is void and has no value
variant.d(675): Error: variable
std.variant.VariantN!(32LU).VariantN.get!void.get.Buf.result variables cannot
be of type void
variant.d(678): Error: a struct is not a valid initializer for a _error_
variant.d(683): Error: cannot return non-void from void function
variant.d(471): Error: template instance
std.variant.VariantN!(32LU).VariantN.get!void error instantiating
variant.d(562):        instantiated from here: handler!(void[])
variant.d(512):        instantiated from here: opAssign!(void[])
test.d(6):             instantiated from here: __ctor!(void[])
variant.d(471): Error: [arg[0LU].get()] of type void[] has no value
variant.d(440): Error: switch case fallthrough - use 'goto case;' if intended
variant.d(485): Error: switch case fallthrough - use 'goto case;' if intended
variant.d(562): Error: template instance
std.variant.VariantN!(32LU).VariantN.handler!(void[]) error instantiating
variant.d(512):        instantiated from here: opAssign!(void[])
test.d(6):               instantiated from here: __ctor!(void[])
variant.d(512): Error: template instance
std.variant.VariantN!(32LU).VariantN.opAssign!(void[]) error instantiating
test.d(6):               instantiated from here: __ctor!(void[])
test.d(6):        Error: template instance
std.variant.VariantN!(32LU).VariantN.__ctor!(void[]) error instantiating

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