This template metafunction has a member Type computed such that, for a specified t_TYPE parameter, a function with argument of t_TYPE can be called efficiently from another function (e.g., a wrapper) by declaring the corresponding parameter of the other wrapper as 'typename ForwardingRefType<t_TYPE>::Type'. The Type member is computed to minimize the number of expensive copies while forwarding the arguments as faithfully as possible.
Declared in <bslmf_forwardingreftype.h>
template<class t_TYPE>
class ForwardingRefType;| Name | Description |
|---|---|
TargetType | The closest type used to "reconstitute" t_TYPE from ForwardingRefType<t_TYPE>::Type. This type may differ from t_TYPE through the addition of a reference. |
Type | The type that should be used to forward t_TYPE through a chain of function calls. |