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

Static Public Member Functions
static char *	into_buf (char *begin, char *end, std::variant< T... > const &value)
static zview	to_buf (char *begin, char *end, std::variant< T... > const &value)
static std::size_t	size_buffer (std::variant< T... > const &value) noexcept
static std::variant< T... >	from_string (std::string_view)=delete

Static Public Attributes
static constexpr bool	converts_to_string
static constexpr bool	converts_from_string
	Is conversion from string_view to TYPE supported?

Member Function Documentation

from_string()

template<typename... T>

std::variant< T... > pqxx::string_traits< std::variant< T... > >::from_string ( std::string_view )

staticdelete

There's no from_string for std::variant. We could have one with a rule like "pick the first type which fits the value," but we'd have to look into how natural that API feels to users.

into_buf()

template<typename... T>

char * pqxx::string_traits< std::variant< T... > >::into_buf ( char * begin, char * end, std::variant< T... > const & value )

inlinestatic

size_buffer()

template<typename... T>

std::size_t pqxx::string_traits< std::variant< T... > >::size_buffer ( std::variant< T... > const & value )

inlinestaticnoexcept

to_buf()

template<typename... T>

zview pqxx::string_traits< std::variant< T... > >::to_buf ( char * begin, char * end, std::variant< T... > const & value )

inlinestatic

Member Data Documentation

converts_from_string

bool pqxx::string_traits< std::variant< T... > >::converts_from_string

staticconstexpr

Is conversion from string_view to TYPE supported?

When defining your own conversions, specialise this as true to indicate that your string traits support from_string.

converts_to_string

template<typename... T>

bool pqxx::string_traits< std::variant< T... > >::converts_to_string

staticconstexpr

Initial value:

{
    (string_traits<T>::converts_to_string and ...)}

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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