[953e86] | 1 | /* emacs edit mode for this file is -*- C++ -*- */ |
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| 2 | |
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| 3 | //{{{ docu |
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| 4 | // |
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| 5 | // cf_iter_inline.cc - definition of configurable inline |
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| 6 | // `CFIterator' methods. |
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| 7 | // |
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| 8 | // Hierarchy: canonicalform, utility class |
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| 9 | // |
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| 10 | // Header file: cf_iter.h |
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| 11 | // |
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| 12 | // See `cf_inline.cc' for a description of "configurable inline |
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| 13 | // methods". |
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| 14 | // |
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| 15 | //}}} |
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| 16 | |
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| 17 | // check whether we are included or translated and |
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| 18 | // define `INCL_CF_ITER_INLINE_CC' if we are included |
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| 19 | #ifdef INCL_CF_ITER_H |
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| 20 | #define INCL_CF_ITER_INLINE_CC |
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| 21 | #endif |
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| 22 | |
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[e4fe2b] | 23 | #include "config.h" |
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[953e86] | 24 | |
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[650f2d8] | 25 | #include "cf_assert.h" |
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[953e86] | 26 | |
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| 27 | // regular include file |
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| 28 | #include "canonicalform.h" |
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| 29 | |
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| 30 | // temporarily switch off `CF_USE_INLINE' and include |
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| 31 | // `cf_iter.h' if we are being translated. |
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| 32 | // `CF_USE_INLINE_SAVE' is used to save the state of |
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| 33 | // `CF_USE_INLINE'. It is unset after use. |
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| 34 | #ifndef INCL_CF_ITER_INLINE_CC |
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| 35 | #ifdef CF_USE_INLINE |
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| 36 | #define CF_USE_INLINE_SAVE |
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| 37 | #undef CF_USE_INLINE |
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| 38 | #endif |
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| 39 | #include "cf_iter.h" |
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| 40 | #ifdef CF_USE_INLINE_SAVE |
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| 41 | #define CF_USE_INLINE |
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| 42 | #undef CF_USE_INLINE_SAVE |
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| 43 | #endif |
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| 44 | #endif /* ! INCL_CF_ITER_INLINE_CC */ |
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| 45 | |
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| 46 | // more regular include files |
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| 47 | #include "int_cf.h" |
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| 48 | #include "int_poly.h" |
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| 49 | |
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| 50 | // set the value of `CF_INLINE' for the following methods and |
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| 51 | // functions |
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| 52 | #if defined( CF_USE_INLINE ) && defined( INCL_CF_ITER_INLINE_CC ) |
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| 53 | #undef CF_INLINE |
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| 54 | #define CF_INLINE inline |
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| 55 | #else |
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| 56 | #undef CF_INLINE |
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| 57 | #define CF_INLINE |
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| 58 | #endif /* ! defined( CF_USE_INLINE ) && defined( INCL_CF_ITER_INLINE_CC ) */ |
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| 59 | |
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| 60 | #ifndef INCL_CF_ITER_INLINE_CC |
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| 61 | // selectors |
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| 62 | //{{{ CF_INLINE int CFIterator::hasTerms () const |
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| 63 | //{{{ docu |
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| 64 | // |
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| 65 | // hasTerm() - check whether CO points to a valid term. |
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| 66 | // |
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| 67 | // Return true if CO points to a valid term, false if CO points |
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| 68 | // to the end of the sequence of terms. |
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| 69 | // |
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| 70 | //}}} |
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| 71 | CF_INLINE int |
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| 72 | CFIterator::hasTerms () const |
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| 73 | { |
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| 74 | return hasterms; |
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| 75 | } |
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| 76 | //}}} |
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| 77 | |
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| 78 | //{{{ CF_INLINE CanonicalForm CFIterator::coeff () const |
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| 79 | //{{{ docu |
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| 80 | // |
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| 81 | // coeff() - return coefficient of current term of CO. |
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| 82 | // |
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| 83 | // CO has to point to a valid term. |
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| 84 | // |
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| 85 | //}}} |
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| 86 | CF_INLINE CanonicalForm |
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| 87 | CFIterator::coeff () const |
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| 88 | { |
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| 89 | ASSERT( hasterms, "lib error: iterator out of terms" ); |
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| 90 | if ( ispoly ) |
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[806c18] | 91 | return cursor->coeff; |
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[953e86] | 92 | else |
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[806c18] | 93 | return data; |
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[953e86] | 94 | } |
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| 95 | //}}} |
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| 96 | |
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| 97 | //{{{ CF_INLINE int CFIterator::exp () const |
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| 98 | //{{{ docu |
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| 99 | // |
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| 100 | // exp() - return exponent of current term of CO. |
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| 101 | // |
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| 102 | // CO has to point to a valid term. |
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| 103 | // |
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| 104 | //}}} |
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| 105 | CF_INLINE int |
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| 106 | CFIterator::exp () const |
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| 107 | { |
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| 108 | ASSERT( hasterms, "lib error: iterator out of terms" ); |
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| 109 | if ( ispoly ) |
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[806c18] | 110 | return cursor->exp; |
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[953e86] | 111 | else |
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[806c18] | 112 | return 0; |
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[953e86] | 113 | } |
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| 114 | //}}} |
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| 115 | |
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| 116 | // implementor methods |
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| 117 | //{{{ CFIterator::operator ++ (), operator ++ ( int ) |
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| 118 | //{{{ docu |
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| 119 | // |
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| 120 | // operator ++() - advance CO to next term. |
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| 121 | // |
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| 122 | // Advance current term to next term in the sequence of terms or |
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| 123 | // to end of sequence. CO has to point to a valid term. |
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| 124 | // |
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| 125 | // The postfix and prefix operator are identical. |
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| 126 | // |
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| 127 | //}}} |
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| 128 | CF_INLINE CFIterator & |
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| 129 | CFIterator::operator ++ () |
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| 130 | { |
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| 131 | ASSERT( hasterms, "lib error: iterator out of terms" ); |
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| 132 | if ( ispoly ) { |
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[806c18] | 133 | cursor = cursor->next; |
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| 134 | hasterms = cursor != 0; |
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[953e86] | 135 | } else |
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[806c18] | 136 | hasterms = false; |
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[953e86] | 137 | |
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| 138 | return *this; |
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| 139 | } |
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| 140 | |
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| 141 | CF_INLINE CFIterator & |
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| 142 | CFIterator::operator ++ ( int ) |
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| 143 | { |
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| 144 | ASSERT( hasterms, "lib error: iterator out of terms" ); |
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| 145 | if ( ispoly ) { |
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[806c18] | 146 | cursor = cursor->next; |
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| 147 | hasterms = cursor != 0; |
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[953e86] | 148 | } else |
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[806c18] | 149 | hasterms = false; |
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[953e86] | 150 | |
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| 151 | return *this; |
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| 152 | } |
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| 153 | //}}} |
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| 154 | #endif |
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