Bug in Compiler? Can not declare a DefaultValue attribute with nullptr

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Hello,

I guess, that a found a bug in the visual c++ compiler (version 2005).

If I try the following
public:
[
ComponentModel::Category ("Data"),
ComponentModel::DefaultValue (nullptr),
ComponentModel::Description ("The combo box that contains the data
source for this control")
]
property DbComboBox ^ ComboBox { DbComboBox ^ get(); Void set
(DbComboBox ^); }

then the compiler reports C2668:

d:\dotnet2005\nettools\source\DbTextBox.H(41) : error C2668:
'System::ComponentModel::DefaultValueAttribute::DefaultValueAttribute' :
ambiguous call to overloaded function
d:\windows\microsoft.net\framework\v2.0.50727\system.dll: could be
'System::ComponentModel::DefaultValueAttribute::DefaultValueAttribute(System::Object
^)'
d:\windows\microsoft.net\framework\v2.0.50727\system.dll: or
'System::ComponentModel::DefaultValueAttribute::DefaultValueAttribute(System::String
^)'
while trying to match the argument list '(nullptr)'

If I try to resolve this ambiguous call with safe_cast, dynamic_cast,
reinterpret_cast, static_cast or a C-style cast the compiler also reports an
error. In the beta version this cast was still allowed and worked correctly.
If I remove the DefaultValue property, then everything works fine, but the
designer will generate a nullptr assignment for every DbComboBox property.
Am I missing something or is a bug in the compiler?

Kind regards
S. Baumann


.

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