bsl::Is_Empty_Imp< t_TYPE, class > Struct Template Reference

#include <bslmf_isempty.h>

Inheritance diagram for bsl::Is_Empty_Imp< t_TYPE, class >:

Additional Inherited Members
Public Types inherited from bsl::integral_constant< t_TYPE, t_VAL >
typedef t_TYPE	value_type
typedef integral_constant	type
Public Member Functions inherited from bsl::integral_constant< t_TYPE, t_VAL >
	integral_constant ()=default
	integral_constant (const integral_constant &)=default
integral_constant	operator= (const integral_constant &)=default
	~integral_constant ()=default
BSLS_KEYWORD_CONSTEXPR	operator value_type () const BSLS_KEYWORD_NOEXCEPT
	Return t_VAL.
Static Public Attributes inherited from bsl::integral_constant< t_TYPE, t_VAL >
static const t_TYPE	value = t_VAL

Detailed Description

template<class t_TYPE, class = void>
struct bsl::Is_Empty_Imp< t_TYPE, class >

Private class: do not use outside of bslmf_isempty component. This meta-function provides an initial dispatch that always derives from false_type unless the template parameter t_TYPE is a class type, as only class types can be empty. The following partial specialization forwards all class types to a final test. This two-phase dispatch is necessary as some types, such as void and function types, cannot be passed to a sizeof operator that is used to implement the next stage of matching.

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The documentation for this struct was generated from the following file:

• bslmf_isempty.h