Class Taggable¶

Defined in File tag.hpp

Inheritance Relationships¶

Derived Type¶

public sequant::Index (Class Index)

Class Documentation¶

class Taggable¶

type-erasing holder for Comparable objects

Note

tag is not part of the state (since tag are temporary and do not affect objects identity except for temporarily labeling them), hence all methods are const

Subclassed by sequant::Index

Public Types

using any_comparable = ::sequant::detail::any_comparable ¶

Public Functions

inline Taggable() noexcept¶

template<typename T> inline const Taggable &assign(const T &t) const¶

tags this object with tag t

Parameters:: t – tag to assign
Returns:: reference to this (for chaining)
Pre:: !this->has_value()
Post:: this->value() == t

template<typename T> inline const T &value() const¶

Throws:: bad_any_comparable_cast – if the contained value is not convertible to T
Returns:: this tag’s value

inline bool has_value() const¶

Returns:: true if tag has been assigned

inline const Taggable &reset() const¶

resets this tag

Returns:: reference to this (for chaining)