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version 2.100.0

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Function dmd.mtype.Type.covariant

Covariant means that 'this' can substitute for 't', i.e. a pure function is a match for an impure type.

final extern(C++) Covariant covariant (
  Type t,
  ulong* pstc = null
);

Parameters

NameDescription
t type 'this' is covariant with
pstc if not null, store STCxxxx which would make it covariant

Returns

An enum value of either Covariant.yes or a reason it's not covariant.

Authors

Walter Bright

License

Boost License 1.0