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Copy file name to clipboardExpand all lines: standard/interfaces.md
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@@ -662,8 +662,9 @@ It is a compile-time error for an explicit interface member implementation to in
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An explicit interface method implementation inherits any type parameter constraints from the interface.
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A *type_parameter_constraints_clause* on an explicit interface method implementation may only consist of the `class` or `struct` *primary_constraint*s applied to *type_parameter*s which are known according to the inherited constraints to be either reference or value types respectively. Any type of the form `T?` in the signature of the explicit interface method implementation, where `T` is a type parameter, is interpreted as follows: