- rotate_31() and golden_hash_ratio() moved to utils.h

[ginac.git] / ginac / basic.h

diff --git a/ginac/basic.h b/ginac/basic.h
index a095617155d652a57e45e17fc85d86e471299e46..ef4e8cfbc5786801bee454d905df1353cf5d4d3b 100644 (file)
--- a/ginac/basic.h
+++ b/ginac/basic.h
@@ -2,16 +2,36 @@
  *
  *  Interface to GiNaC's ABC. */
 
-#ifndef _BASIC_H_
-#define _BASIC_H_
+/*
+ *  GiNaC Copyright (C) 1999 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
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#ifndef __GINAC_BASIC_H__
+#define __GINAC_BASIC_H__
 
 #include <iostream>
 #include <typeinfo>
 #include <vector>
 
-#include "flags.h"
-#include "tinfos.h"
-#include "debugmsg.h"
+#include <ginac/flags.h>
+#include <ginac/tinfos.h>
+#include <ginac/assertion.h>
+
+namespace GiNaC {
 
 class basic;
 class ex;
@@ -35,10 +55,8 @@ class basic
 public:
     basic()
 #ifdef INLINE_BASIC_CONSTRUCTORS
-    : tinfo_key(TINFO_BASIC), flags(0), refcount(0)
+    : tinfo_key(TINFO_basic), flags(0), refcount(0)
     {
-        debugmsg("basic default constructor",LOGLEVEL_CONSTRUCT);
-        // nothing to do
     }
 #else
 ;
@@ -47,7 +65,6 @@ public:
     virtual ~basic()
 #ifdef INLINE_BASIC_CONSTRUCTORS
     {
-        debugmsg("basic destructor",LOGLEVEL_DESTRUCT);
         destroy(0);
         ASSERT((!(flags & status_flags::dynallocated))||(refcount==0));
     }
@@ -58,7 +75,6 @@ public:
     basic(basic const & other)
 #ifdef INLINE_BASIC_CONSTRUCTORS
     {
-        debugmsg("basic copy constructor",LOGLEVEL_CONSTRUCT);
         copy(other);
     }
 #else
@@ -81,8 +97,6 @@ protected:
 #ifdef INLINE_BASIC_CONSTRUCTORS
     : tinfo_key(ti), flags(0), refcount(0)
     {
-        debugmsg("basic constructor with tinfo_key",LOGLEVEL_CONSTRUCT);
-        // nothing to do
     }
 #else
 ;
@@ -164,77 +178,20 @@ extern type_info const & typeid_basic;
 
 extern int max_recursion_level;
 
-/*
-#ifndef _DEBUG
-*/
+// convenience macros
+
 #define is_of_type(OBJ,TYPE) \
-    (dynamic_cast<TYPE *>(const_cast<basic *>(&OBJ))!=0)
+    (dynamic_cast<TYPE *>(const_cast<GiNaC::basic *>(&OBJ))!=0)
 
-/*
-#define is_exactly_of_type(OBJ,TYPE) \
-    (typeid(OBJ)==typeid(some_##TYPE))
-*/
 #define is_exactly_of_type(OBJ,TYPE) \
-    ((OBJ).tinfo()==(some_##TYPE).tinfo())
-
-
-    /*
-#else 
-#define is_of_type(OBJ,TYPE)                               \
-    (ASSERT(typeid(OBJ)!=typeid(exZERO())),                \
-     (dynamic_cast<TYPE *>(const_cast<basic *>(&OBJ))!=0))
-
-#define is_exactly_of_type(OBJ,TYPE)                       \
-    (ASSERT(typeid(OBJ)!=typeid(exZERO())),                \
-     (typeid(OBJ)==typeid(some_##TYPE))
-#endif // ndef _DEBUG
-*/
+    ((OBJ).tinfo()==GiNaC::TINFO_##TYPE)
 
 #define is_ex_of_type(OBJ,TYPE) \
-    (dynamic_cast<TYPE *>(const_cast<basic *>((OBJ).bp))!=0)
-
-/*
-#define is_ex_exactly_of_type(OBJ,TYPE) \
-    (typeid(*(OBJ).bp)==typeid(some_##TYPE))
-*/
+    (dynamic_cast<TYPE *>(const_cast<GiNaC::basic *>((OBJ).bp))!=0)
 
 #define is_ex_exactly_of_type(OBJ,TYPE) \
-    ((*(OBJ).bp).tinfo()==(some_##TYPE).tinfo())
-
-#define are_ex_trivially_equal(EX1,EX2) \
-    ((EX1).bp==(EX2).bp)
-
-// global functions
-
-inline unsigned rotate_left_31(unsigned n)
-{
-    // clear highest bit and shift 1 bit to the left
-    n=(n & 0x7FFFFFFFU) << 1;
-
-    // overflow? clear highest bit and set lowest bit
-    if (n & 0x80000000U) {
-        n=(n & 0x7FFFFFFFU) | 0x00000001U;
-    }
+    ((*(OBJ).bp).tinfo()==GiNaC::TINFO_##TYPE)
 
-    ASSERT(n<0x80000000U);
+} // namespace GiNaC
 
-    return n;
-}
-
-inline unsigned golden_ratio_hash(unsigned n)
-{
-#if 0
-       // This requires ´long long´ (or an equivalent 64 bit type)---which is,
-    // unfortunately, not ANSI-compliant:
-       unsigned long long l = n * 0x4f1bbcddLL;
-       return (l & 0x7fffffffU) ^ (l >> 32);
-#else
-       // This requires ´long double´ to have a mantissa of at least 64 bit---
-    // which is not guaranteed by any standard:
-    const static long double golden_ratio=.618033988749894848204586834370;
-    long double m=golden_ratio*n;
-    return unsigned((m-int(m))*0x80000000);
-#endif
-}
-
-#endif // ndef _BASIC_H_
+#endif // ndef __GINAC_BASIC_H__