pqxx::nullness< std::variant< T... > > Struct Template Reference

Static Public Member Functions
static constexpr bool	is_null (std::variant< T... > const &value) noexcept
static constexpr std::variant< T... >	null ()=delete

Static Public Attributes
static constexpr bool	has_null = (nullness<T>::has_null or ...)
static constexpr bool	always_null = (nullness<T>::always_null and ...)

Member Function Documentation

is_null()

template<typename... T>

constexpr bool pqxx::nullness< std::variant< T... > >::is_null ( std::variant< T... > const & value )

inlinestaticconstexprnoexcept

null()

template<typename... T>

constexpr std::variant< T... > pqxx::nullness< std::variant< T... > >::null ( )

staticconstexprdelete

It would be technically possible to have a null in the case where just one of the types has a null, but it gets complicated and arbitrary.

Member Data Documentation

always_null

template<typename... T>

bool pqxx::nullness< std::variant< T... > >::always_null = (nullness<T>::always_null and ...)

staticconstexpr

has_null

template<typename... T>

bool pqxx::nullness< std::variant< T... > >::has_null = (nullness<T>::has_null or ...)

staticconstexpr

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

• /builddir/build/BUILD/libpqxx-7.10.5-build/libpqxx-7.10.5/redhat-linux-build/include/pqxx/internal/conversions.hxx