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| interface | assignable_from |
| | The concept std::assignable_from<LHS, RHS> specifies that an expression of the type and value category specified by RHS can be assigned to an lvalue expression whose type is specified by LHS. More...
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| interface | boolean |
| | Specifies that a type can be used in boolean contexts. More...
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| interface | common_reference_with |
| | The concept std::common_reference_with<T, U> specifies that two types T and U share a common reference type (as computed by std::common_reference_t) to which both can be converted. More...
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| interface | common_with |
| | The concept std::common_with<T, U> specifies that two types T and U share a common type (as computed by std::common_type_t) to which both can be converted. More...
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| interface | constructible_from |
| | The std::constructible_from concept specifies that a variable of type T can be initialized with the given set of argument types Args.... More...
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| interface | convertible_to |
| | The concept std::convertible_to<From, To> specifies that an expression of the type and value category specified by From can be implicitly and explicitly converted to the type To, and the two forms of conversion are equivalent. More...
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| interface | copy_constructible |
| | The concept std::copy_constructible is satisfied if T is an lvalue reference type, or if it is a move_constructible object type where an object of that type can constructed from a (possibly const) lvalue or const rvalue of that type in both direct- and copy-initialization contexts with the usual semantics (a copy is constructed with the source unchanged). More...
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| interface | copyable |
| | Subsumes std::movable, std::copy_constructible, and requires that the type be std::assignable_from bool from a const & of itself. More...
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| interface | default_constructible |
| | The std::default_constructible concept provides a shorthand for the common case when the question is whether a type can be constructed with no arguments. More...
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| interface | derived_from |
| | The concept std::derived_from<Derived, Base> is satisfied if and only if Base is a class type that is either Derived or a public and unambiguous base of Derived, ignoring cv-qualifiers. More...
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| interface | destructible |
| | The concept std::destructible specifies the concept of all types whose instances can safely be destroyed at the end of their lifetime (including reference types). More...
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| interface | equality_comparable |
| | The same as std::weakly_equality_comparable_with<t,t>. More...
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| interface | equality_comparable_with |
| | Requires seqan3::detail::weakly_equality_comparable_witht<t1,t2>, but also that t1 and t2, as well as their common_reference_t satisfy std::equality_comparable. More...
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| interface | integral |
| | The concept integral is satisfied if and only if T is an integral type. More...
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| interface | invocable |
| | Specifies whether the given callable is invocable with the given arguments. More...
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| interface | movable |
| | Subsumes std::Object, std::move_constructible, std::swappable bool and requires that the type be std::assignable_from bool from a value of itself. More...
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| interface | move_constructible |
| | The concept std::move_constructible is satisfied if T is a reference type, or if it is an object type where an object of that type can constructed from an rvalue of that type in both direct- and copy-initialization contexts, with the usual semantics. More...
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| interface | predicate |
| | Specifies whether the given callable is std::regular_invocable and returns bool. More...
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| interface | regular |
| | Subsumes std::semiregular and std::equality_comparable. More...
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| interface | regular_invocable |
| | Specifies whether the given callable is invocable with the given arguments and equality preserving (invocations change neither the callable, nor the arguments). More...
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| interface | relation |
| | Specifies that R defines a binary relation over the set of expressions whose type and value category are those encoded by either t or u. More...
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| interface | same_as |
| | The concept std::same_as<T, U> is satisfied if and only if T and U denote the same type. More...
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| interface | semiregular |
| | Subsumes std::copyable and std::default_constructible. More...
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| interface | signed_integral |
| | The concept std::signed_integral is satisfied if and only if T is an integral type and std::is_signed_v<T> is true. More...
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| interface | strict_weak_order |
| | The concept strict_weak_order<R, T, U> specifies that the relation R imposes a strict weak ordering on its arguments. More...
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| interface | swappable |
| | The concept std::swappable specifies that lvalues of type T are swappable. More...
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| interface | swappable_with |
| | The concept std::swappable_with<T, U> specifies that expressions of the type and value category encoded by T and U are swappable with each other. More...
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| interface | totally_ordered |
| | Requires std::equality_comparable and all remaing comparison operators (<, <=, >, >=). More...
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| interface | totally_ordered_with |
| | Requires std::equality_comparable and all remaing comparison operators (<, <=, >, >=). More...
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| interface | unsigned_integral |
| | The concept std::unsigned_integral is satisfied if and only if T is an integral type and std::is_signed_v<T> is false. More...
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You can expect these functions on all types that implement std::totally_ordered.
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| bool | operator< (type const &lhs, type const &rhs) |
| | Less-than, greater-than and -or-equal comparisons. More...
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| bool | operator<= (type const &lhs, type const &rhs) |
| | Less-than, greater-than and -or-equal comparisons. More...
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| bool | operator> (type const &lhs, type const &rhs) |
| | Less-than, greater-than and -or-equal comparisons. More...
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| bool | operator>= (type const &lhs, type const &rhs) |
| | Less-than, greater-than and -or-equal comparisons. More...
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The <concepts> header from C++20's standard library.
Collaboration diagram for concepts:
1.8.16