daw_nullable_value_fwd.h File Reference

#include "daw/json/impl/version.h"
#include "daw/daw_callable.h"
#include <daw/daw_cpp_feature_check.h>
#include <daw/daw_enable_requires.h>
#include <daw/daw_is_detected.h>
#include <cstddef>
#include <type_traits>

Go to the source code of this file.

Classes
struct	daw::json::anonymous_namespace{daw_nullable_value_fwd.h}::concepts::construct_nullable_with_empty_t
struct	daw::json::anonymous_namespace{daw_nullable_value_fwd.h}::concepts::construct_nullable_with_pointer_t
struct	daw::json::anonymous_namespace{daw_nullable_value_fwd.h}::concepts::construct_nullable_with_value_t
struct	daw::json::anonymous_namespace{daw_nullable_value_fwd.h}::concepts::nullable_value_traits< T,... >
	Readable values models an option/maybe/nullable type. More...

Namespaces
namespace	daw
namespace	daw::json
	string_writer grows its string with resize_and_overwrite, leaving the new bytes uninitialized, when the standard library has it. That skips zero filling memory that is overwritten right away, but the bytes past what was written are never initialized, which resize_and_overwrite's precondition does not allow. Define DAW_JSON_NO_LESS_SAFE_STRING_WRITER to grow with resize( ) instead
namespace	daw::json::anonymous_namespace{daw_nullable_value_fwd.h}
namespace	daw::json::anonymous_namespace{daw_nullable_value_fwd.h}::concepts

Typedefs
template<typename T >
using	daw::json::anonymous_namespace{daw_nullable_value_fwd.h}::concepts::nullable_value_type_t = typename nullable_value_traits< T >::value_type
	Determines the type stored inside T.

Functions
template<typename T >
constexpr bool	daw::json::anonymous_namespace{daw_nullable_value_fwd.h}::concepts::nullable_value_has_value (T const &opt)
	Check if nullable value has a value.
template<typename T >
constexpr auto const &	daw::json::anonymous_namespace{daw_nullable_value_fwd.h}::concepts::nullable_value_read (T const &opt)
	Read value from a non-empty nullable value.

Variables
constexpr auto	daw::json::anonymous_namespace{daw_nullable_value_fwd.h}::concepts::construct_nullable_with_empty
constexpr auto	daw::json::anonymous_namespace{daw_nullable_value_fwd.h}::concepts::construct_nullable_with_pointer
constexpr auto	daw::json::anonymous_namespace{daw_nullable_value_fwd.h}::concepts::construct_nullable_with_value
template<typename T >
DAW_CPP20_CONCEPT	daw::json::anonymous_namespace{daw_nullable_value_fwd.h}::concepts::is_nullable_empty_constructible_v
template<typename T >
DAW_CPP20_CONCEPT	daw::json::anonymous_namespace{daw_nullable_value_fwd.h}::concepts::is_nullable_empty_nothrow_constructible_v
template<typename T , typename... Args>
DAW_CPP20_CONCEPT	daw::json::anonymous_namespace{daw_nullable_value_fwd.h}::concepts::is_nullable_pointer_constructible_v
template<typename T , typename... Args>
DAW_CPP20_CONCEPT	daw::json::anonymous_namespace{daw_nullable_value_fwd.h}::concepts::is_nullable_value_constructible_v
template<typename T , typename... Args>
DAW_CPP20_CONCEPT	daw::json::anonymous_namespace{daw_nullable_value_fwd.h}::concepts::is_nullable_value_nothrow_constructible_v
template<typename T >
DAW_CPP20_CONCEPT	daw::json::anonymous_namespace{daw_nullable_value_fwd.h}::concepts::is_nullable_value_v
	Is T a nullable type.