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SymEngine::Piecewise Class Reference
+ Inheritance diagram for SymEngine::Piecewise:
+ Collaboration diagram for SymEngine::Piecewise:

Public Member Functions

virtual void accept (Visitor &v) const
 
virtual void accept (EvalRealDoubleVisitorFinal &v) const
 
 Piecewise (PiecewiseVec &&vec)
 Constructor. More...
 
bool is_canonical (const PiecewiseVec &vec)
 
hash_t __hash__ () const
 
const PiecewiseVecget_vec () const
 
virtual vec_basic get_args () const
 Returns the list of arguments. More...
 
virtual bool __eq__ (const Basic &o) const
 Test equality. More...
 
virtual int compare (const Basic &o) const
 Structural equality comparator. More...
 
- Public Member Functions inherited from SymEngine::Basic
TypeID get_type_code () const
 
 Basic ()
 Constructor. More...
 
 Basic (const Basic &)=delete
 Delete the copy constructor and assignment.
 
Basicoperator= (const Basic &)=delete
 Assignment operator in continuation with above.
 
 Basic (Basic &&)=delete
 Delete the move constructor and assignment.
 
Basicoperator= (Basic &&)=delete
 Assignment operator in continuation with above.
 
virtual hash_t __hash__ () const =0
 
hash_t hash () const
 
virtual bool __eq__ (const Basic &o) const =0
 Test equality. More...
 
bool __neq__ (const Basic &o) const
 true if this is not equal to o. More...
 
int __cmp__ (const Basic &o) const
 Comparison operator. More...
 
virtual int compare (const Basic &o) const =0
 
std::string __str__ () const
 
std::string dumps () const
 Returns a string of the instance serialized. More...
 
RCP< const Basicsubs (const map_basic_basic &subs_dict) const
 Substitutes 'subs_dict' into 'self'. More...
 
RCP< const Basicxreplace (const map_basic_basic &subs_dict) const
 
virtual RCP< const Basicexpand_as_exp () const
 expands the special function in terms of exp function More...
 
virtual vec_basic get_args () const =0
 Returns the list of arguments. More...
 
virtual void accept (Visitor &v) const =0
 
virtual void accept (EvalRealDoubleVisitorFinal &v) const =0
 
RCP< const Basicdiff (const RCP< const Symbol > &x, bool cache=true) const
 
- Public Member Functions inherited from SymEngine::EnableRCPFromThis< Basic >
RCP< Basicrcp_from_this ()
 Get RCP<T> pointer to self (it will cast the pointer to T) More...
 
RCP< const Basicrcp_from_this () const
 Get RCP<const T> pointer to self (it will cast the pointer to const T) More...
 
RCP< const T2 > rcp_from_this_cast () const
 Get RCP<T2> pointer to self (it will cast the pointer to T2) More...
 
unsigned int use_count () const
 

Static Public Attributes

static const TypeID type_code_id = SYMENGINE_PIECEWISE
 

Private Attributes

PiecewiseVec vec_
 

Additional Inherited Members

- Static Public Member Functions inherited from SymEngine::Basic
static RCP< const Basicloads (const std::string &)
 Creates an instance of a serialized string. More...
 
- Data Fields inherited from SymEngine::Basic
TypeID type_code_
 

Detailed Description

Definition at line 82 of file logic.h.

Constructor & Destructor Documentation

◆ Piecewise()

SymEngine::Piecewise::Piecewise ( PiecewiseVec &&  vec)

Constructor.

Definition at line 150 of file logic.cpp.

150 : vec_(vec)
151{
152 SYMENGINE_ASSIGN_TYPEID()
153 SYMENGINE_ASSERT(is_canonical(vec_));
154}

Member Function Documentation

◆ __eq__()

bool SymEngine::Piecewise::__eq__ ( const Basic o) const
virtual

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
oa constant reference to object to test against
Returns
True if this is equal to o

Implements SymEngine::Basic.

Definition at line 207 of file logic.cpp.

208{
209 return is_a<Piecewise>(o)
210 and unified_eq(get_vec(), down_cast<const Piecewise &>(o).get_vec());
211}

◆ __hash__()

hash_t SymEngine::Piecewise::__hash__ ( ) const
virtual

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 182 of file logic.cpp.

183{
184 hash_t seed = this->get_type_code();
185 for (auto &p : vec_) {
186 hash_combine<Basic>(seed, *p.first);
187 hash_combine<Basic>(seed, *p.second);
188 }
189 return seed;
190}

◆ accept() [1/2]

virtual void SymEngine::Piecewise::accept ( EvalRealDoubleVisitorFinal v) const
virtual

Implements SymEngine::Basic.

◆ accept() [2/2]

virtual void SymEngine::Piecewise::accept ( Visitor v) const
virtual

Implements SymEngine::Basic.

◆ compare()

int SymEngine::Piecewise::compare ( const Basic o) const
virtual

Structural equality comparator.

Implements SymEngine::Basic.

Definition at line 213 of file logic.cpp.

214{
215 SYMENGINE_ASSERT(is_same_type(*this, o))
216 RCP<const Piecewise> t = o.rcp_from_this_cast<Piecewise>();
217 return unified_compare(get_vec(), t->get_vec());
218}
Piecewise(PiecewiseVec &&vec)
Constructor.
Definition: logic.cpp:150
bool is_same_type(const Basic &a, const Basic &b)
Returns true if a and b are exactly the same type T.
Definition: basic-inl.h:47
int unified_compare(const T &a, const T &b)
Definition: dict.h:205

◆ get_args()

vec_basic SymEngine::Piecewise::get_args ( ) const
virtual

Returns the list of arguments.

Implements SymEngine::Basic.

Definition at line 197 of file logic.cpp.

198{
199 vec_basic v;
200 for (auto &p : vec_) {
201 v.push_back(p.first);
202 v.push_back(p.second);
203 }
204 return v;
205}
T push_back(T... args)

◆ get_vec()

const PiecewiseVec & SymEngine::Piecewise::get_vec ( ) const

Definition at line 192 of file logic.cpp.

193{
194 return vec_;
195}

◆ is_canonical()

bool SymEngine::Piecewise::is_canonical ( const PiecewiseVec vec)

Definition at line 156 of file logic.cpp.

157{
158 set_boolean conditions;
159 bool found_true = false;
160 for (auto &p : vec) {
161 if (found_true) {
162 return false;
163 }
164 if (eq(*p.second, *boolFalse)) {
165 return false;
166 } else if (eq(*p.second, *boolTrue)) {
167 found_true = true;
168 } else if (conditions.find(p.second) == conditions.end()) {
169 conditions.insert(p.second);
170 } else {
171 return false;
172 }
173 }
174 if (vec.size() == 0) {
175 return false;
176 } else if (vec.size() == 1 and eq(*vec[0].second, *boolTrue)) {
177 return false;
178 }
179 return true;
180}
T insert(T... args)
bool eq(const Basic &a, const Basic &b)
Checks equality for a and b
Definition: basic-inl.h:21

Field Documentation

◆ type_code_id

const TypeID SymEngine::Piecewise::type_code_id = SYMENGINE_PIECEWISE
static

Type_code_id shared by all instances

Definition at line 88 of file logic.h.

◆ vec_

PiecewiseVec SymEngine::Piecewise::vec_
private

Definition at line 85 of file logic.h.


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