pqxx::nullness< TYPE, ENABLE > Struct Template Reference

Traits describing a type's "null value," if any. More...

#include <strconv.hxx>

Static Public Member Functions
static bool	is_null (TYPE const &value)
	Is value a null? More...
static TYPE	null ()
	Return a null value. More...

Static Public Attributes
static bool	has_null
	Does this type have a null value? More...
static bool	always_null
	Is this type always null? More...

Detailed Description

template<typename TYPE, typename ENABLE = void>
struct pqxx::nullness< TYPE, ENABLE >

Traits describing a type's "null value," if any.

Some C++ types have a special value or state which correspond directly to SQL's NULL.

The nullness traits describe whether it exists, and whether a particular value is null.

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

• strconv.hxx