relx::query::date_checking Namespace Reference

Type checking concepts for date/time operations. More...

Classes
struct	extract_column_type
	Helper to extract column type for checking. More...
struct	extract_column_type< schema::column< TableT, Name, ColumnT, Modifiers... > >
struct	is_time_point
	Helper to check if a type is a time_point of any clock. More...
struct	is_time_point< std::chrono::time_point< Clock, Duration > >
struct	remove_optional
	Remove optional wrapper to get base type. More...
struct	remove_optional< std::optional< T > >

Concepts
concept	DateTimeType
	Check if a type is a date/time type.
concept	DateTimeColumn
	Check if type is a date/time type (unwrapping optional)

Typedefs
template<typename T >
using	remove_optional_t = typename remove_optional< T >::type
template<typename T >
using	extract_column_type_t = typename extract_column_type< T >::type

Variables
template<typename T >
constexpr bool	is_time_point_v = is_time_point<T>::value

Detailed Description

Type checking concepts for date/time operations.

Typedef Documentation

extract_column_type_t

template<typename T >

using relx::query::date_checking::extract_column_type_t = typedef typename extract_column_type<T>::type

Definition at line 73 of file date_concepts.hpp.

remove_optional_t

template<typename T >

using relx::query::date_checking::remove_optional_t = typedef typename remove_optional<T>::type

Definition at line 24 of file date_concepts.hpp.

Variable Documentation

is_time_point_v

template<typename T >

constexpr bool relx::query::date_checking::is_time_point_v = is_time_point<T>::value

inlineconstexpr

Definition at line 34 of file date_concepts.hpp.