[35aab3] | 1 | // ---------------------------------------------------------------------------- |
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| 2 | // splist.cc |
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| 3 | // begin of file |
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| 4 | // Stephan Endrass, endrass@mathematik.uni-mainz.de |
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| 5 | // 23.7.99 |
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| 6 | // ---------------------------------------------------------------------------- |
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| 7 | |
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| 8 | #define SPLIST_CC |
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| 9 | |
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[599326] | 10 | #include <kernel/mod2.h> |
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[35aab3] | 11 | |
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| 12 | #ifdef HAVE_SPECTRUM |
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| 13 | |
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| 14 | #ifdef SPLIST_PRINT |
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| 15 | #include <iostream.h> |
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| 16 | #ifndef SPLIST_IOSTREAM |
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| 17 | #include <stdio.h> |
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| 18 | #endif |
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| 19 | #endif |
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| 20 | |
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[599326] | 21 | #include <kernel/structs.h> |
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| 22 | #include <kernel/GMPrat.h> |
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[0f401f] | 23 | #include <coeffs/numbers.h> |
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[210e07] | 24 | #include <polys/polys.h> |
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[599326] | 25 | #include <kernel/npolygon.h> |
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| 26 | #include <kernel/splist.h> |
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[210e07] | 27 | #include <misc/intvec.h> |
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[35aab3] | 28 | |
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| 29 | // ------------------------ |
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| 30 | // class spectrumPolyNode |
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| 31 | // ------------------------ |
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| 32 | |
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| 33 | // ---------------------------------------------------------------------------- |
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| 34 | // Initialize a spectrumPolyNode with zero |
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| 35 | // ---------------------------------------------------------------------------- |
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| 36 | |
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| 37 | void spectrumPolyNode::copy_zero( void ) |
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| 38 | { |
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| 39 | next = (spectrumPolyNode*)NULL; |
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[ee3e1ae] | 40 | mon = NULL; |
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[35aab3] | 41 | weight = (Rational)0; |
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[ee3e1ae] | 42 | nf = NULL; |
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[35aab3] | 43 | } |
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| 44 | |
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| 45 | // ---------------------------------------------------------------------------- |
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| 46 | // Inizialize a spectrumPolyNode shallow from data |
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| 47 | // ---------------------------------------------------------------------------- |
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| 48 | |
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| 49 | void spectrumPolyNode::copy_shallow( |
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| 50 | spectrumPolyNode *pnode,poly m,const Rational &w,poly f ) |
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| 51 | { |
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| 52 | next = pnode; |
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| 53 | mon = m; |
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| 54 | weight = w; |
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| 55 | nf = f; |
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| 56 | } |
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| 57 | |
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| 58 | // ---------------------------------------------------------------------------- |
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| 59 | // Inizialize a spectrumPolyNode shallow from another spectrumPolyNode |
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| 60 | // ---------------------------------------------------------------------------- |
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| 61 | |
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| 62 | void spectrumPolyNode::copy_shallow( spectrumPolyNode &node ) |
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| 63 | { |
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| 64 | next = node.next; |
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| 65 | mon = node.mon; |
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| 66 | weight = node.weight; |
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| 67 | nf = node.nf; |
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| 68 | } |
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| 69 | |
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| 70 | // ---------------------------------------------------------------------------- |
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| 71 | // Zero constructor for spectrumPolyNode |
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| 72 | // ---------------------------------------------------------------------------- |
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| 73 | |
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| 74 | spectrumPolyNode::spectrumPolyNode( ) |
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| 75 | { |
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| 76 | copy_zero( ); |
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| 77 | } |
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| 78 | |
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| 79 | // ---------------------------------------------------------------------------- |
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| 80 | // Data constructor for spectrumPolyNode is shallow |
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| 81 | // ---------------------------------------------------------------------------- |
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| 82 | |
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| 83 | spectrumPolyNode::spectrumPolyNode( |
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| 84 | spectrumPolyNode *pnode,poly m,const Rational &w,poly f ) |
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| 85 | { |
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| 86 | copy_shallow( pnode,m,w,f ); |
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| 87 | } |
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| 88 | |
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| 89 | // ---------------------------------------------------------------------------- |
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| 90 | // Destructor is empty since we construct our objects shallow |
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| 91 | // ---------------------------------------------------------------------------- |
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| 92 | |
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| 93 | spectrumPolyNode::~spectrumPolyNode( ) |
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| 94 | { |
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[ee3e1ae] | 95 | if( mon!=NULL ) pDelete( &mon ); |
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| 96 | if( nf !=NULL ) pDelete( &nf ); |
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[35aab3] | 97 | copy_zero( ); |
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| 98 | } |
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| 99 | |
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| 100 | // ------------------------ |
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| 101 | // class spectrumPolyList |
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| 102 | // ------------------------ |
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| 103 | |
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| 104 | // ---------------------------------------------------------------------------- |
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| 105 | // Initialize a spectrumPolyList with zero |
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| 106 | // ---------------------------------------------------------------------------- |
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| 107 | |
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| 108 | void spectrumPolyList::copy_zero( void ) |
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| 109 | { |
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| 110 | root = (spectrumPolyNode*)NULL; |
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| 111 | N = 0; |
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| 112 | np = (newtonPolygon*)NULL; |
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| 113 | } |
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| 114 | |
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| 115 | // ---------------------------------------------------------------------------- |
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| 116 | // Inizialize a spectrumPolyList shallow from data |
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| 117 | // ---------------------------------------------------------------------------- |
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| 118 | |
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| 119 | void spectrumPolyList::copy_shallow( |
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| 120 | spectrumPolyNode *node,int k,newtonPolygon *npolygon ) |
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| 121 | { |
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| 122 | root = node; |
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| 123 | N = k; |
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| 124 | np = npolygon; |
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| 125 | } |
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| 126 | |
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| 127 | // ---------------------------------------------------------------------------- |
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| 128 | // Inizialize a spectrumPolyList shallow from another spectrumPolyList |
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| 129 | // ---------------------------------------------------------------------------- |
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| 130 | |
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| 131 | void spectrumPolyList::copy_shallow( spectrumPolyList &splist ) |
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| 132 | { |
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| 133 | copy_shallow( splist.root,splist.N,splist.np ); |
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| 134 | } |
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| 135 | |
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| 136 | // ---------------------------------------------------------------------------- |
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| 137 | // Zero constructor for spectrumPolyList |
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| 138 | // ---------------------------------------------------------------------------- |
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| 139 | |
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| 140 | spectrumPolyList::spectrumPolyList( ) |
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| 141 | { |
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| 142 | copy_zero( ); |
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| 143 | } |
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| 144 | |
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| 145 | // ---------------------------------------------------------------------------- |
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| 146 | // Data constructor for spectrumPolyList |
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| 147 | // ---------------------------------------------------------------------------- |
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| 148 | |
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| 149 | spectrumPolyList::spectrumPolyList( newtonPolygon *npolygon ) |
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| 150 | { |
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| 151 | copy_shallow( (spectrumPolyNode*)NULL,0,npolygon ); |
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| 152 | } |
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| 153 | |
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| 154 | // ---------------------------------------------------------------------------- |
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| 155 | // Destuctor for spectrumPolyList |
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| 156 | // ---------------------------------------------------------------------------- |
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| 157 | |
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| 158 | spectrumPolyList::~spectrumPolyList( ) |
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| 159 | { |
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| 160 | spectrumPolyNode *node; |
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| 161 | |
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| 162 | while( root!=(spectrumPolyNode*)NULL ) |
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| 163 | { |
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| 164 | node = root->next; |
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| 165 | delete root; |
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| 166 | root = node; |
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| 167 | } |
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| 168 | |
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| 169 | copy_zero( ); |
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| 170 | } |
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| 171 | |
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| 172 | // ---------------------------------------------------------------------------- |
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| 173 | // Insert a new node into a spectrumPolyList at position k |
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| 174 | // If the list is sorted, then |
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| 175 | // the new node ist inserted such that the list remains sorted. |
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| 176 | // ---------------------------------------------------------------------------- |
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| 177 | |
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| 178 | void spectrumPolyList::insert_node( poly m,poly f ) |
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| 179 | { |
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| 180 | #ifdef SPLIST_DEBUG |
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| 181 | if( np==(newtonPolygon*)NULL ) |
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| 182 | { |
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| 183 | #ifdef SPLIST_PRINT |
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| 184 | #ifdef SPLIST_IOSTREAM |
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| 185 | cerr << "void spectrumPolyList::insert_node( poly f )" << endl; |
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| 186 | cerr << " no Newton polygon" << endl; |
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| 187 | cerr << " exiting..." << endl; |
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| 188 | #else |
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| 189 | fprintf( stderr,"void spectrumPolyList::insert_node( poly f )\n" ); |
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| 190 | fprintf( stderr," no Newton polygon\n" ); |
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| 191 | fprintf( stderr," exiting...\n" ); |
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| 192 | #endif |
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| 193 | #endif |
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| 194 | |
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| 195 | exit( 1 ); |
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| 196 | } |
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| 197 | #endif |
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| 198 | |
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| 199 | spectrumPolyNode *newnode = new spectrumPolyNode( |
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| 200 | (spectrumPolyNode*)NULL,m,np->weight_shift( m ),f ); |
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| 201 | |
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| 202 | if( N==0 || |
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| 203 | root->weight>newnode->weight || |
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| 204 | ( root->weight==newnode->weight && |
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| 205 | pCmp( root->mon,newnode->mon )<0 ) ) |
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| 206 | { |
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| 207 | // ---------------------- |
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| 208 | // insert at position 0 |
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| 209 | // ---------------------- |
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| 210 | |
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| 211 | newnode->next = root; |
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| 212 | root = newnode; |
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| 213 | } |
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| 214 | else if( N==1 ) |
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| 215 | { |
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| 216 | // --------------- |
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| 217 | // insert at end |
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| 218 | // --------------- |
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| 219 | |
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| 220 | root->next = newnode; |
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| 221 | } |
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| 222 | else |
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| 223 | { |
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| 224 | // ---------------------------- |
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| 225 | // insert according to weight |
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| 226 | // ---------------------------- |
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| 227 | |
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| 228 | spectrumPolyNode *actual = root; |
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| 229 | spectrumPolyNode *next = root->next; |
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| 230 | |
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| 231 | while( next!=(spectrumPolyNode*)NULL && |
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| 232 | ( newnode->weight>next->weight || |
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| 233 | ( newnode->weight==next->weight && |
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| 234 | pCmp( newnode->mon,next->mon )<0 ) ) ) |
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| 235 | { |
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| 236 | actual = next; |
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| 237 | next = next->next; |
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| 238 | } |
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| 239 | |
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| 240 | actual->next = newnode; |
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| 241 | newnode->next = next; |
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| 242 | } |
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| 243 | N++; |
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| 244 | } |
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| 245 | |
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| 246 | // ---------------------------------------------------------------------------- |
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| 247 | // Delete a node from a spectrumPolyList |
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| 248 | // ---------------------------------------------------------------------------- |
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| 249 | |
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| 250 | void spectrumPolyList::delete_node( spectrumPolyNode **node ) |
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| 251 | { |
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| 252 | spectrumPolyNode *foo = *node; |
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| 253 | *node = (*node)->next; |
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| 254 | delete foo; |
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| 255 | N--; |
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| 256 | } |
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| 257 | |
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| 258 | // ---------------------------------------------------------------------------- |
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| 259 | // Delete all nodes where node->mon is a multiple of m |
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| 260 | // In every node delete all instances of m in node->nf |
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| 261 | // ---------------------------------------------------------------------------- |
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| 262 | |
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| 263 | void spectrumPolyList::delete_monomial( poly m ) |
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| 264 | { |
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| 265 | spectrumPolyNode **node = &root; |
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| 266 | poly *f; |
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| 267 | |
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| 268 | m = pCopy( m ); |
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| 269 | |
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| 270 | while( *node!=(spectrumPolyNode*)NULL ) |
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| 271 | { |
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| 272 | if( pCmp( m,(*node)->mon )>=0 && pLmDivisibleByNoComp( m,(*node)->mon ) ) |
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| 273 | { |
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| 274 | delete_node( node ); |
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| 275 | } |
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[ee3e1ae] | 276 | else if( (*node)->nf!=NULL ) |
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[35aab3] | 277 | { |
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| 278 | f = &((*node)->nf); |
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| 279 | |
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[ee3e1ae] | 280 | while( *f!=NULL ) |
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[35aab3] | 281 | { |
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| 282 | if( pCmp( m,*f )>=0 && pLmDivisibleByNoComp( m,*f ) ) |
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| 283 | { |
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[ee3e1ae] | 284 | pLmDelete(f); |
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[35aab3] | 285 | } |
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| 286 | else |
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[ee3e1ae] | 287 | { |
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[35aab3] | 288 | f = &(pNext( *f )); |
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| 289 | } |
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| 290 | } |
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| 291 | |
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[ee3e1ae] | 292 | if( (*node)->nf==NULL ) |
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[35aab3] | 293 | { |
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| 294 | delete_node( node ); |
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| 295 | } |
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| 296 | else |
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| 297 | { |
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| 298 | node = &((*node)->next); |
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| 299 | } |
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| 300 | } |
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| 301 | else |
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| 302 | { |
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| 303 | node = &((*node)->next); |
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| 304 | } |
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| 305 | } |
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| 306 | pDelete( &m ); |
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| 307 | } |
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| 308 | |
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| 309 | // ---------------------------------------------------------------------------- |
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| 310 | // Print a spectrumPolyList |
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| 311 | // ---------------------------------------------------------------------------- |
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| 312 | |
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| 313 | #ifdef SPLIST_PRINT |
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| 314 | ostream & operator << ( ostream &s,const spectrumPolyList &l ) |
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| 315 | { |
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| 316 | #ifdef SPLIST_IOSTREAM |
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| 317 | s << "elements: " << l.N << endl; |
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| 318 | s << "{"; |
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| 319 | #else |
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| 320 | fprintf( stdout,"elements: %d\n",l.N ); |
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| 321 | fprintf( stdout,"{" ); |
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| 322 | #endif |
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| 323 | |
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| 324 | if( l.root!=(spectrumPolyNode*)NULL ) |
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| 325 | { |
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| 326 | #ifdef SPLIST_IOSTREAM |
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| 327 | s << "("; |
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| 328 | pWrite0( l.root->mon ); |
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| 329 | s << "=>"; |
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| 330 | pWrite0( l.root->nf ); |
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| 331 | cout << "," << l.root->weight << ")" << endl; |
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| 332 | #else |
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| 333 | fprintf( stdout,"(" ); |
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| 334 | pWrite0( l.root->mon ); |
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| 335 | fprintf( stdout,"=>" ); |
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| 336 | pWrite0( l.root->nf ); |
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| 337 | fprintf( stdout,"," ); |
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| 338 | cout << l.root->weight; |
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| 339 | fprintf( stdout,")\n" ); |
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| 340 | #endif |
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| 341 | |
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| 342 | spectrumPolyNode *node = l.root->next; |
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| 343 | |
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| 344 | while( node!=(spectrumPolyNode*)NULL ) |
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| 345 | { |
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| 346 | #ifdef SPLIST_IOSTREAM |
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| 347 | s << ",("; |
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| 348 | pWrite0( node->mon ); |
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| 349 | s << "=>"; |
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| 350 | pWrite0( node->nf ); |
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| 351 | cout << "," << node->weight << ")" << endl; |
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| 352 | #else |
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| 353 | fprintf( stdout,",(" ); |
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| 354 | pWrite0( node->mon ); |
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| 355 | fprintf( stdout,"=>" ); |
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| 356 | pWrite0( node->nf ); |
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| 357 | fprintf( stdout,"," ); |
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| 358 | cout << node->weight; |
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| 359 | fprintf( stdout,")\n" ); |
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| 360 | #endif |
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| 361 | |
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| 362 | node = node->next; |
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| 363 | } |
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| 364 | } |
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| 365 | #ifdef SPLIST_IOSTREAM |
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| 366 | s << "}"; |
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| 367 | #else |
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| 368 | fprintf( stdout,"}" ); |
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| 369 | #endif |
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| 370 | |
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| 371 | return s; |
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| 372 | } |
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| 373 | #endif |
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| 374 | |
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| 375 | #endif /* HAVE_SPECTRUM */ |
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| 376 | // ---------------------------------------------------------------------------- |
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| 377 | // splist.cc |
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| 378 | // end of file |
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| 379 | // ---------------------------------------------------------------------------- |
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| 380 | |
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