X-Git-Url: https://www.ginac.de/ginac.git//ginac.git?p=ginac.git;a=blobdiff_plain;f=ginac%2Fbasic.h;h=12a958c657ee317ebe32aa9706fd771f84066fad;hp=a68c2eee0411dba6f5dca043789c55eef099bd18;hb=11927b0eacfea55a57f477549e6dd7a7dab20716;hpb=68fdf425abf14d016d5f95ee7b9d06a19a3c5926 diff --git a/ginac/basic.h b/ginac/basic.h index a68c2eee..12a958c6 100644 --- a/ginac/basic.h +++ b/ginac/basic.h @@ -25,11 +25,13 @@ #include // for size_t #include +#include // CINT needs to work properly with #include #include "flags.h" #include "tinfos.h" +#include "ptr.h" #include "assertion.h" #include "registrar.h" @@ -42,9 +44,9 @@ class numeric; class relational; class archive_node; class print_context; -template class ptr; typedef std::vector exvector; +typedef std::map exmap; /** Function object for map(). */ @@ -64,25 +66,23 @@ protected: }; -/** This class is the ABC (abstract base class) of GiNaC's class hierarchy. - * It is responsible for the reference counting. */ -class basic +/** This class is the ABC (abstract base class) of GiNaC's class hierarchy. */ +class basic : public refcounted { GINAC_DECLARE_REGISTERED_CLASS_NO_CTORS(basic, void) friend class ex; - friend class ptr; // default constructor, destructor, copy constructor and assignment operator protected: - basic() : tinfo_key(TINFO_basic), flags(0), refcount(0) {} + basic() : tinfo_key(TINFO_basic), flags(0) {} public: /** basic destructor, virtual because class ex will delete objects of * derived classes via a basic*. */ virtual ~basic() { - GINAC_ASSERT((!(flags & status_flags::dynallocated))||(refcount==0)); + GINAC_ASSERT((!(flags & status_flags::dynallocated)) || (get_refcount() == 0)); } basic(const basic & other); const basic & operator=(const basic & other); @@ -90,7 +90,7 @@ public: protected: /** Constructor with specified tinfo_key (used by derived classes instead * of the default constructor to avoid assigning tinfo_key twice). */ - basic(unsigned ti) : tinfo_key(ti), flags(0), refcount(0) {} + basic(unsigned ti) : tinfo_key(ti), flags(0) {} // new virtual functions which can be overridden by derived classes public: // only const functions please (may break reference counting) @@ -135,7 +135,7 @@ protected: public: // substitutions - virtual ex subs(const lst & ls, const lst & lr, unsigned options = 0) const; + virtual ex subs(const exmap & m, unsigned options = 0) const; // function mapping virtual ex map(map_function & f) const; @@ -163,9 +163,9 @@ public: virtual ex series(const relational & r, int order, unsigned options = 0) const; // rational functions - virtual ex normal(lst &sym_lst, lst &repl_lst, int level = 0) const; - virtual ex to_rational(lst &repl_lst) const; - virtual ex to_polynomial(lst &repl_lst) const; + virtual ex normal(exmap & repl, exmap & rev_lookup, int level = 0) const; + virtual ex to_rational(exmap & repl) const; + virtual ex to_polynomial(exmap & repl) const; // polynomial algorithms virtual numeric integer_content() const; @@ -190,8 +190,20 @@ protected: // functions that should be called from class ex only // non-virtual functions in this class public: - ex subs(const ex & e, unsigned options = 0) const; - ex subs_one_level(const lst & ls, const lst & lr, unsigned options) const; + /** Like print(), but dispatch to the specified class. Can be used by + * implementations of print methods to dispatch to the method of the + * superclass. + * + * @see basic::print */ + template + void print_dispatch(const print_context & c, unsigned level) const + { + print_dispatch(T::get_class_info_static(), c, level); + } + + void print_dispatch(const registered_class_info & ri, const print_context & c, unsigned level) const; + + ex subs_one_level(const exmap & m, unsigned options) const; ex diff(const symbol & s, unsigned nth = 1) const; int compare(const basic & other) const; bool is_equal(const basic & other) const; @@ -207,14 +219,16 @@ public: protected: void ensure_if_modifiable() const; + + void do_print(const print_context & c, unsigned level) const; + void do_print_tree(const print_tree & c, unsigned level) const; + void do_print_python_repr(const print_python_repr & c, unsigned level) const; // member variables protected: unsigned tinfo_key; ///< typeinfo mutable unsigned flags; ///< of type status_flags mutable unsigned hashvalue; ///< hash value -private: - size_t refcount; ///< reference counter, managed by ptr }; @@ -236,38 +250,9 @@ inline bool is_a(const basic &obj) * inefficient default. It should in all time-critical cases be overridden * by template specializations that use the TINFO_* constants directly. */ template -inline bool is_exactly_a(const class basic &obj) -{ - return obj.tinfo() == T::reg_info.tinfo_key; -} - -/** Check if ex is a handle to a T, including base classes. */ -template -inline bool is_a(const ex &obj) -{ - return is_a(*obj.bp); -} - -/** Check if ex is a handle to a T, not including base classes. */ -template -inline bool is_exactly_a(const ex &obj) -{ - return is_exactly_a(*obj.bp); -} - -/** Return a reference to the basic-derived class T object embedded in an - * expression. This is fast but unsafe: the result is undefined if the - * expression does not contain a T object at its top level. Hence, you - * should generally check the type of e first. - * - * @param e expression - * @return reference to pseries object - * @see is_exactly_a() */ -template -inline const T &ex_to(const ex &e) +inline bool is_exactly_a(const basic &obj) { - GINAC_ASSERT(is_a(e)); - return static_cast(*e.bp); + return obj.tinfo() == T::get_class_info_static().options.get_id(); } } // namespace GiNaC