SymEngine::Interval Class Reference

Inheritance diagram for SymEngine::Interval:

Collaboration diagram for SymEngine::Interval:

Public Member Functions
void	accept (Visitor &v) const override
void	accept (EvalRealDoubleVisitorFinal &v) const override
hash_t	__hash__ () const override
bool	__eq__ (const Basic &o) const override
	Test equality. More...
int	compare (const Basic &o) const override
	Interval (const RCP< const Number > &start, const RCP< const Number > &end, const bool left_open=false, const bool right_open=false)
RCP< const Set >	open () const
RCP< const Set >	close () const
RCP< const Set >	Lopen () const
RCP< const Set >	Ropen () const
RCP< const Set >	set_union (const RCP< const Set > &o) const override
RCP< const Set >	set_intersection (const RCP< const Set > &o) const override
RCP< const Set >	set_complement (const RCP< const Set > &o) const override
RCP< const Boolean >	contains (const RCP< const Basic > &a) const override
vec_basic	get_args () const override
	Returns the list of arguments.
const RCP< const Number > &	get_start () const
const RCP< const Number > &	get_end () const
const bool &	get_left_open () const
const bool &	get_right_open () const
Public Member Functions inherited from SymEngine::Set
bool	is_subset (const RCP< const Set > &o) const
bool	is_proper_subset (const RCP< const Set > &o) const
bool	is_superset (const RCP< const Set > &o) const
bool	is_proper_superset (const RCP< const Set > &o) const
Public Member Functions inherited from SymEngine::Basic
TypeID	get_type_code () const
	Basic ()
	Constructor.
	Basic (const Basic &)=delete
	Delete the copy constructor and assignment.
Basic &	operator= (const Basic &)=delete
	Assignment operator in continuation with above.
	Basic (Basic &&)=delete
	Delete the move constructor and assignment.
Basic &	operator= (Basic &&)=delete
	Assignment operator in continuation with above.
hash_t	hash () const
bool	__neq__ (const Basic &o) const
	true if this is not equal to o. More...
int	__cmp__ (const Basic &o) const
	Comparison operator.
std::string	__str__ () const
std::string	dumps () const
	Returns a string of the instance serialized.
RCP< const Basic >	subs (const map_basic_basic &subs_dict) const
	Substitutes 'subs_dict' into 'self'.
RCP< const Basic >	xreplace (const map_basic_basic &subs_dict) const
virtual RCP< const Basic >	expand_as_exp () const
	expands the special function in terms of exp function
RCP< const Basic >	diff (const RCP< const Symbol > &x, bool cache=true) const
Public Member Functions inherited from SymEngine::EnableRCPFromThis< Basic >
RCP< Basic >	rcp_from_this ()
	Get RCP<T> pointer to self (it will cast the pointer to T)
RCP< const Basic >	rcp_from_this () const
	Get RCP<const T> pointer to self (it will cast the pointer to const T)
RCP< const T2 >	rcp_from_this_cast () const
	Get RCP<T2> pointer to self (it will cast the pointer to T2)
unsigned int	use_count () const

Static Public Member Functions
static bool	is_canonical (const RCP< const Number > &start, const RCP< const Number > &end, bool left_open, bool right_open)
Static Public Member Functions inherited from SymEngine::Basic
static RCP< const Basic >	loads (const std::string &)
	Creates an instance of a serialized string.

Static Public Attributes
static const TypeID	type_code_id = SYMENGINE_INTERVAL

Private Attributes
RCP< const Number >	start_
RCP< const Number >	end_
bool	left_open_
bool	right_open_

Additional Inherited Members
Data Fields inherited from SymEngine::Basic
TypeID	type_code_

Detailed Description

Definition at line 145 of file sets.h.

Member Function Documentation

__eq__()

bool SymEngine::Interval::__eq__ ( const Basic &  o ) const

overridevirtual

Test equality.

A virtual function for testing the equality of two Basic objects

Deprecated:

Use eq(const Basic &a, const Basic &b) non-member method

Parameters

o	a constant reference to object to test against

Returns

True if this is equal to o

Implements SymEngine::Basic.

Definition at line 43 of file sets.cpp.

{
    if (is_a<Interval>(o)) {
        const Interval &s = down_cast<const Interval &>(o);
        return ((this->left_open_ == s.left_open_)
                and (this->right_open_ == s.right_open_)
                and eq(*this->start_, *s.start_) and eq(*this->end_, *s.end_));
    }
    return false;
}

__hash__()

hash_t SymEngine::Interval::__hash__ ( ) const

overridevirtual

Calculates the hash of the given SymEngine class. Use Basic.hash() which gives a cached version of the hash.

Returns

64-bit integer value for the hash

Implements SymEngine::Basic.

Definition at line 33 of file sets.cpp.

{
    hash_t seed = SYMENGINE_INTERVAL;
    hash_combine<Basic>(seed, *start_);
    hash_combine<Basic>(seed, *end_);
    hash_combine<bool>(seed, left_open_);
    hash_combine<bool>(seed, right_open_);
    return seed;
}

compare()

int SymEngine::Interval::compare ( const Basic &  o ) const

overridevirtual

Returns -1, 0, 1 for this < o, this == o, this > o. This method is used when you want to sort things like x+y+z into canonical order. This function assumes that o is the same type as this. Use __cmp__ if you want general comparison.

Implements SymEngine::Basic.

Definition at line 54 of file sets.cpp.

{
    // compares two interval based on their length
    SYMENGINE_ASSERT(is_a<Interval>(s))
    const Interval &o = down_cast<const Interval &>(s);
    if (left_open_ and not o.left_open_) {
        return -1;
    } else if (not left_open_ and o.left_open_) {
        return 1;
    } else if (right_open_ and not o.right_open_) {
        return 1;
    } else if (not right_open_ and o.right_open_) {
        return -1;
    } else {
        auto temp = start_->__cmp__(*(o.start_));
        if (temp != 0) {
            return temp;
        } else {
            return end_->__cmp__(*(o.end_));
        }
    }
}

Field Documentation

type_code_id

const TypeID SymEngine::Interval::type_code_id = SYMENGINE_INTERVAL

static

Type_code_id shared by all instances

Definition at line 153 of file sets.h.

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The documentation for this class was generated from the following files:

• /home/runner/work/symengine/symengine/symengine/sets.h
• /home/runner/work/symengine/symengine/symengine/sets.cpp