SymEngine::MSymEnginePoly< Container, Poly > Class Template Reference
+ Inheritance diagram for SymEngine::MSymEnginePoly< Container, Poly >:
+ Collaboration diagram for SymEngine::MSymEnginePoly< Container, Poly >:

Public Types

typedef Container container_type
typedef Container::coef_type coef_type

Public Member Functions

 MSymEnginePoly (const set_basic &vars, Container &&dict)
int compare (const Basic &o) const override
vec_basic get_args () const override
 Returns the list of arguments.
const Container & get_poly () const
const set_basicget_vars () const
bool __eq__ (const Basic &o) const override
 Test equality. More...
- 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
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 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 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 Member Functions

static RCP< const Poly > from_container (const set_basic &vars, Container &&d)
template<typename FromPoly >
static enable_if_t< is_a_UPoly< FromPoly >::value, RCP< const Poly > > from_poly (const FromPoly &p)
static RCP< const Poly > from_dict (const vec_basic &v, typename Container::dict_type &&d)
static Container container_from_dict (const set_basic &s, typename Container::dict_type &&d)
- Static Public Member Functions inherited from SymEngine::Basic
static RCP< const Basicloads (const std::string &)
 Creates an instance of a serialized string.

Private Attributes

Container poly_
set_basic vars_

Additional Inherited Members

- Data Fields inherited from SymEngine::Basic
TypeID type_code_

Detailed Description

template<typename Container, typename Poly>
class SymEngine::MSymEnginePoly< Container, Poly >

Definition at line 313 of file msymenginepoly.h.

Member Function Documentation

◆ __eq__()

template<typename Container , typename Poly >
bool SymEngine::MSymEnginePoly< Container, Poly >::__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 410 of file msymenginepoly.h.

411  {
412  // TODO : fix for when vars are different, but there is an intersection
413  if (not is_a<Poly>(o))
414  return false;
415  const Poly &o_ = down_cast<const Poly &>(o);
416  // compare constants without regards to vars
417  if (1 == poly_.dict_.size() && 1 == o_.poly_.dict_.size()) {
418  if (poly_.dict_.begin()->second != o_.poly_.dict_.begin()->second)
419  return false;
420  if (poly_.dict_.begin()->first == o_.poly_.dict_.begin()->first
421  && unified_eq(vars_, o_.vars_))
422  return true;
423  typename Container::vec_type v1, v2;
424  v1.resize(vars_.size(), 0);
425  v2.resize(o_.vars_.size(), 0);
426  if (poly_.dict_.begin()->first == v1
427  || o_.poly_.dict_.begin()->first == v2)
428  return true;
429  return false;
430  } else if (0 == poly_.dict_.size() && 0 == o_.poly_.dict_.size()) {
431  return true;
432  } else {
433  return (unified_eq(vars_, o_.vars_)
434  && unified_eq(poly_.dict_, o_.poly_.dict_));
435  }
436  }
T size(T... args)

◆ compare()

template<typename Container , typename Poly >
int SymEngine::MSymEnginePoly< Container, Poly >::compare ( const Basic o) const

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 333 of file msymenginepoly.h.

334  {
335  SYMENGINE_ASSERT(is_a<Poly>(o))
337  const Poly &s = down_cast<const Poly &>(o);
339  if (vars_.size() != s.vars_.size())
340  return vars_.size() < s.vars_.size() ? -1 : 1;
341  if (poly_.dict_.size() != s.poly_.dict_.size())
342  return poly_.dict_.size() < s.poly_.dict_.size() ? -1 : 1;
344  int cmp = unified_compare(vars_, s.vars_);
345  if (cmp != 0)
346  return cmp;
348  return unified_compare(poly_.dict_, s.poly_.dict_);
349  }
int unified_compare(const T &a, const T &b)
Definition: dict.h:205

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