This metafunction determines which cv qualifiers and reference qualifiers should be propagated from the first argument of invoke_result. This primary template is instantiated when t_ARG_TYPE is the same or is derived from t_MEMOF_CLASS. The constant k_IS_LVALUE is true iff t_ARG_TYPE is an lvalue reference; the constant k_IS_CONST is true iff t_ARG_TYPE is const-qualified; and the constant k_IS_VOLATILE is true iff t_ARG_TYPE is volatile-qualified.
Declared in <bslmf_invokeresult.h>
template<
class t_MEMOF_CLASS,
class t_ARG_TYPE,
bool t_IS_DERIVED = bsl::is_convertible<typename bsl::decay<t_ARG_TYPE>::type *, typename bsl::decay<t_MEMOF_CLASS>::type *>::value>
struct InvokeResult_MemPtrArgQualifiers;
| Name | Description |
|---|---|
Unnamed enum | Qualifier constants inferred from the first invoke argument. |
| Name | Description |
|---|---|
InvokeResult_MemPtrArgQualifiers<t_MEMOF_CLASS, t_ARG_TYPE, false> | This metafunction determines which cv qualifiers and reference qualifiers should be propagated from the first argument of invoke_result. |