* Interface to GiNaC's ABC. */
/*
- * GiNaC Copyright (C) 1999-2001 Johannes Gutenberg University Mainz, Germany
+ * GiNaC Copyright (C) 1999-2002 Johannes Gutenberg University Mainz, Germany
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
#ifndef __GINAC_BASIC_H__
#define __GINAC_BASIC_H__
-#include <iostream>
#include <vector>
-
// CINT needs <algorithm> to work properly with <vector>
#include <algorithm>
#include "tinfos.h"
#include "assertion.h"
#include "registrar.h"
-/*#include "debugmsg.h"*/
namespace GiNaC {
friend class ex;
- // default ctor, dtor, copy ctor assignment operator and helpers
+ // default ctor, dtor, copy ctor, assignment operator and helpers
public:
- basic() : tinfo_key(TINFO_basic), flags(0), refcount(0)
- {
- /* debugmsg("basic default ctor", LOGLEVEL_CONSTRUCT); */
- }
+ basic() : tinfo_key(TINFO_basic), flags(0), refcount(0) {}
/** basic dtor, virtual because class ex will delete objects via ptr. */
virtual ~basic()
{
- /* debugmsg("basic dtor", LOGLEVEL_DESTRUCT); */
destroy(false);
GINAC_ASSERT((!(flags & status_flags::dynallocated))||(refcount==0));
}
// other ctors
/** ctor with specified tinfo_key */
- basic(unsigned ti) : tinfo_key(ti), flags(0), refcount(0)
- {
- /* debugmsg("basic ctor with tinfo_key", LOGLEVEL_CONSTRUCT); */
- }
- // functions overriding virtual functions from bases classes
- // none
+ basic(unsigned ti) : tinfo_key(ti), flags(0), refcount(0) {}
// new virtual functions which can be overridden by derived classes
public: // only const functions please (may break reference counting)
extern int max_recursion_level;
-// Obsolete convenience macros. To be phased out soon!
-// Use the inlined template functions below instead of these macros.
-
-#define is_of_type(OBJ,TYPE) \
- (dynamic_cast<const TYPE *>(&OBJ)!=0)
-
-#define is_exactly_of_type(OBJ,TYPE) \
- ((OBJ).tinfo()==GiNaC::TINFO_##TYPE)
-
-#define is_ex_of_type(OBJ,TYPE) \
- (dynamic_cast<const TYPE *>((OBJ).bp)!=0)
-
-#define is_ex_exactly_of_type(OBJ,TYPE) \
- ((*(OBJ).bp).tinfo()==GiNaC::TINFO_##TYPE)
-
// convenience type checker template functions
/** Check if obj is a T, including base classes. */
template <class T>
-inline bool is_a(const basic & obj)
+inline bool is_a(const basic &obj)
{
return dynamic_cast<const T *>(&obj)!=0;
}
* inefficient default. It should in all time-critical cases be overridden
* by template specializations that don't create a temporary. */
template <class T>
-inline bool is_exactly_a(const class basic & obj)
+inline bool is_exactly_a(const class basic &obj)
{
const T foo; return foo.tinfo()==obj.tinfo();
}
/** Check if ex is a handle to a T, including base classes. */
template <class T>
-inline bool is_a(const ex & obj)
+inline bool is_a(const ex &obj)
{
return is_a<T>(*obj.bp);
}
/** Check if ex is a handle to a T, not including base classes. */
template <class T>
-inline bool is_exactly_a(const ex & obj)
+inline bool is_exactly_a(const ex &obj)
{
return is_exactly_a<T>(*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.
+ * 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
template <class T>
inline const T &ex_to(const ex &e)
{
+ GINAC_ASSERT(is_a<T>(e));
return static_cast<const T &>(*e.bp);
}