No Matches
SymEngine::Piecewise Class Reference
+ Inheritance diagram for SymEngine::Piecewise:
+ Collaboration diagram for SymEngine::Piecewise:

Public Member Functions

void accept (Visitor &v) const override
void accept (EvalRealDoubleVisitorFinal &v) const override
 Piecewise (PiecewiseVec &&vec)
bool is_canonical (const PiecewiseVec &vec)
hash_t __hash__ () const override
const PiecewiseVecget_vec () const
vec_basic get_args () const override
 Returns the list of arguments.
bool __eq__ (const Basic &o) const override
 Test equality.
int compare (const Basic &o) const override
 Structural equality comparator.
- Public Member Functions inherited from SymEngine::Basic
TypeID get_type_code () const
 Basic ()
 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.
bool __neq__ (const Basic &o) const
 true if this is not equal to o.
int __cmp__ (const Basic &o) const
 Comparison operator.
virtual int compare (const Basic &o) const =0
std::string __str__ () const
std::string dumps () const
 Returns a string of the instance serialized.
RCP< const Basicsubs (const map_basic_basic &subs_dict) const
 Substitutes 'subs_dict' into 'self'.
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
virtual vec_basic get_args () const =0
 Returns the list of arguments.
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)
RCP< const Basicrcp_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 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.
- 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)


Definition at line 150 of file logic.cpp.

150 : vec_(vec)
153 SYMENGINE_ASSERT(is_canonical(vec_));

Member Function Documentation

◆ __eq__()

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

Test equality.

A virtual function for testing the equality of two Basic objects

Use eq(const Basic &a, const Basic &b) non-member method
oa constant reference to object to test against
True if this is equal to o

Implements SymEngine::Basic.

Definition at line 207 of file logic.cpp.

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

◆ __hash__()

hash_t SymEngine::Piecewise::__hash__ ( ) const

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

64-bit integer value for the hash

Implements SymEngine::Basic.

Definition at line 182 of file logic.cpp.

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;

◆ accept() [1/2]

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

Implements SymEngine::Basic.

◆ accept() [2/2]

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

Implements SymEngine::Basic.

◆ compare()

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

Structural equality comparator.

Implements SymEngine::Basic.

Definition at line 213 of file logic.cpp.

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());
Piecewise(PiecewiseVec &&vec)
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

Returns the list of arguments.

Implements SymEngine::Basic.

Definition at line 197 of file logic.cpp.

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;
T push_back(T... args)

◆ get_vec()

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

Definition at line 192 of file logic.cpp.

194 return vec_;

◆ is_canonical()

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

Definition at line 156 of file logic.cpp.

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;
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

Type_code_id shared by all instances

Definition at line 88 of file logic.h.

◆ vec_

PiecewiseVec SymEngine::Piecewise::vec_

Definition at line 85 of file logic.h.

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