[35aab3] | 1 | /**************************************** |
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| 2 | * Computer Algebra System SINGULAR * |
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| 3 | ****************************************/ |
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| 4 | /*************************************************************** |
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| 5 | * File: p_KBucketSetLm__Template.cc |
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| 6 | * Purpose: template for setting the Lm of a bucket |
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| 7 | * Author: obachman (Olaf Bachmann) |
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| 8 | * Created: 12/00 |
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[924cca] | 9 | * Version: $Id: p_kBucketSetLm__T.cc,v 1.4 2006-02-13 17:12:42 bricken Exp $ |
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[35aab3] | 10 | *******************************************************************/ |
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| 11 | #undef USE_COEF_BUCKETS |
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| 12 | #ifdef HAVE_COEF_BUCKETS |
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| 13 | #define USE_COEF_BUCKETS |
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| 14 | #endif |
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| 15 | |
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| 16 | #ifdef USE_COEF_BUCKETS |
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| 17 | #define MULTIPLY_BUCKET(B,I) do \ |
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| 18 | { if (B->coef[I]!=NULL) \ |
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| 19 | { \ |
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| 20 | B->buckets[I]=p_Mult_q(B->buckets[I],B->coef[I],B->bucket_ring); \ |
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| 21 | B->coef[I]=NULL; \ |
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| 22 | } \ |
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| 23 | } while(0) |
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| 24 | #else |
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| 25 | #define MULTIPLY_BUCKET(B,I) |
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| 26 | #endif |
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[924cca] | 27 | #ifndef USE_COEF_BUCKETS |
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[35aab3] | 28 | LINKAGE void p_kBucketSetLm(kBucket_pt bucket) |
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| 29 | { |
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| 30 | int j = 0; |
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| 31 | poly lt; |
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| 32 | BOOLEAN zero = FALSE; |
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| 33 | ring r = bucket->bucket_ring; |
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| 34 | assume(bucket->buckets[0] == NULL && bucket->buckets_length[0] == 0); |
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| 35 | DECLARE_LENGTH(const unsigned long length = r->ExpL_Size); |
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| 36 | DECLARE_ORDSGN(const long* ordsgn = r->ordsgn); |
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| 37 | poly p; |
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| 38 | |
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| 39 | do |
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| 40 | { |
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| 41 | j = 0; |
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| 42 | for (int i = 1; i<=bucket->buckets_used; i++) |
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| 43 | { |
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| 44 | if (bucket->buckets[i] != NULL) |
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| 45 | { |
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| 46 | MULTIPLY_BUCKET(bucket,i); |
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| 47 | p = bucket->buckets[j]; |
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| 48 | if (j == 0) |
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| 49 | { |
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| 50 | if (p != NULL) goto Greater; |
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| 51 | j = i; |
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| 52 | goto Continue; |
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| 53 | } |
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| 54 | assume(p != NULL); |
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| 55 | p_MemCmp(bucket->buckets[i]->exp, p->exp, length, ordsgn, goto Equal, goto Greater, goto Continue); |
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| 56 | |
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| 57 | Greater: |
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| 58 | { |
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| 59 | if (n_IsZero(pGetCoeff(p), r)) |
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| 60 | { |
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| 61 | n_Delete(&pGetCoeff(p), r); |
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| 62 | pIter(bucket->buckets[j]); |
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| 63 | p_FreeBinAddr(p, r); |
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| 64 | (bucket->buckets_length[j])--; |
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| 65 | } |
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| 66 | j = i; |
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| 67 | goto Continue; |
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| 68 | } |
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| 69 | |
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| 70 | Equal: |
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| 71 | { |
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| 72 | MULTIPLY_BUCKET(bucket,i); |
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| 73 | number tn = pGetCoeff(p); |
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| 74 | pSetCoeff0(p, n_Add(pGetCoeff(bucket->buckets[i]), tn, r)); |
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| 75 | n_Delete(&tn, r); |
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| 76 | p = bucket->buckets[i]; |
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| 77 | pIter(bucket->buckets[i]); |
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| 78 | n_Delete(&pGetCoeff(p), r); |
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| 79 | p_FreeBinAddr(p, r); |
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| 80 | (bucket->buckets_length[i])--; |
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| 81 | } |
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| 82 | |
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| 83 | Continue:; |
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| 84 | } |
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| 85 | } |
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| 86 | p = bucket->buckets[j]; |
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| 87 | if (j > 0 && n_IsZero(pGetCoeff(p), r)) |
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| 88 | { |
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| 89 | n_Delete(&pGetCoeff(p), r); |
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| 90 | pIter(bucket->buckets[j]); |
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| 91 | p_FreeBinAddr(p, r); |
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| 92 | (bucket->buckets_length[j])--; |
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| 93 | j = -1; |
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| 94 | } |
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| 95 | } |
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| 96 | while (j < 0); |
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| 97 | |
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| 98 | if (j == 0) |
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| 99 | { |
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| 100 | return; |
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| 101 | } |
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| 102 | |
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| 103 | assume(bucket->buckets[j] != NULL); |
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| 104 | lt = bucket->buckets[j]; |
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| 105 | bucket->buckets[j] = pNext(lt); |
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| 106 | bucket->buckets_length[j]--; |
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| 107 | pNext(lt) = NULL; |
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| 108 | bucket->buckets[0] = lt; |
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| 109 | bucket->buckets_length[0] = 1; |
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| 110 | |
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| 111 | kBucketAdjustBucketsUsed(bucket); |
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| 112 | } |
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[39e957] | 113 | #else |
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| 114 | LINKAGE void p_kBucketSetLm(kBucket_pt bucket) |
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| 115 | { |
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| 116 | //int j = 0; |
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| 117 | poly lt; |
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| 118 | BOOLEAN zero = FALSE; |
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| 119 | ring r = bucket->bucket_ring; |
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| 120 | assume((bucket->buckets[0] == NULL) && (bucket->buckets_length[0] == 0) && (bucket->coef[0]==0)); |
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| 121 | DECLARE_LENGTH(const unsigned long length = r->ExpL_Size); |
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| 122 | DECLARE_ORDSGN(const long* ordsgn = r->ordsgn); |
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| 123 | poly p=NULL; |
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| 124 | while(p==NULL){ |
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| 125 | int found=-1000; |
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| 126 | for (int i = 1; i<=bucket->buckets_used; i++) |
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| 127 | { |
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| 128 | if (bucket->buckets[i] != NULL) |
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| 129 | { |
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| 130 | |
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| 131 | if (p == NULL) |
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| 132 | { |
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| 133 | p=bucket->buckets[i]; |
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| 134 | found=i; |
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| 135 | continue; |
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| 136 | } |
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| 137 | assume(p != NULL); |
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| 138 | p_MemCmp(bucket->buckets[i]->exp, p->exp, length, ordsgn, goto Continue, goto Greater, goto Continue); |
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| 139 | //assume(p_LmCmp(bucket->buckets[i],p,r)==1); |
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| 140 | Greater: |
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| 141 | //if (p_LmCmp(bucket->buckets[i],p,r)!=1) continue; |
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| 142 | found=i; |
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| 143 | p=bucket->buckets[i]; |
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| 144 | Continue:; |
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| 145 | } |
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| 146 | } |
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| 147 | |
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| 148 | |
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| 149 | if (found<0) return; |
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| 150 | assume(p==bucket->buckets[found]); |
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| 151 | assume(p!=NULL); |
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| 152 | |
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| 153 | p=kBucketExtractLmOfBucket(bucket, found); |
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| 154 | assume(p!=NULL); |
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| 155 | p_Test(p,r); |
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| 156 | poly copy=p_LmInit(p, r); |
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| 157 | |
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| 158 | for (int i = found+1; i<=bucket->buckets_used; i++) |
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| 159 | { |
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| 160 | |
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| 161 | if (bucket->buckets[i] != NULL) |
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| 162 | { |
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| 163 | if(p_LmEqual(bucket->buckets[i], copy,r)){ |
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| 164 | poly q=kBucketExtractLmOfBucket(bucket,i); |
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| 165 | assume(p!=q); |
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| 166 | p=p_Add_q(p, q,r); |
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| 167 | assume(pLength(bucket->buckets[i])==bucket->buckets_length[i]); |
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| 168 | } |
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| 169 | |
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| 170 | |
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| 171 | |
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| 172 | } |
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| 173 | } |
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| 174 | p_Delete(©, r); |
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| 175 | } |
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| 176 | |
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| 177 | //assume(bucket->buckets[j] != NULL); |
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| 178 | assume(pLength(p)==1); |
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| 179 | lt = p; |
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| 180 | |
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| 181 | bucket->buckets[0] = lt; |
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| 182 | bucket->buckets_length[0] = 1; |
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| 183 | |
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| 184 | kBucketAdjustBucketsUsed(bucket); |
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| 185 | kbTest(bucket); |
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| 186 | } |
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[56941d] | 187 | #endif |
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