]> www.ginac.de Git - ginac.git/blobdiff - ginac/mul.cpp
[build] Move archive version info into version.h (for non autotools build).
[ginac.git] / ginac / mul.cpp
index 27add930cf56863ae7d635d3031e4dc2b1d7ea9f..763e6037abacefd0719ecdd9fd5ec6d0799abb53 100644 (file)
@@ -448,24 +448,6 @@ ex mul::eval(int level) const
                           setflag(status_flags::dynallocated);
        }
        
-#ifdef DO_GINAC_ASSERT
-       epvector::const_iterator i = seq.begin(), end = seq.end();
-       while (i != end) {
-               GINAC_ASSERT((!is_exactly_a<mul>(i->rest)) ||
-                            (!(ex_to<numeric>(i->coeff).is_integer())));
-               GINAC_ASSERT(!(i->is_canonical_numeric()));
-               if (is_exactly_a<numeric>(recombine_pair_to_ex(*i)))
-                   print(print_tree(std::cerr));
-               GINAC_ASSERT(!is_exactly_a<numeric>(recombine_pair_to_ex(*i)));
-               /* for paranoia */
-               expair p = split_ex_to_pair(recombine_pair_to_ex(*i));
-               GINAC_ASSERT(p.rest.is_equal(i->rest));
-               GINAC_ASSERT(p.coeff.is_equal(i->coeff));
-               /* end paranoia */
-               ++i;
-       }
-#endif // def DO_GINAC_ASSERT
-       
        if (flags & status_flags::evaluated) {
                GINAC_ASSERT(seq.size()>0);
                GINAC_ASSERT(seq.size()>1 || !overall_coeff.is_equal(_ex1));
@@ -500,7 +482,7 @@ ex mul::eval(int level) const
                       )->setflag(status_flags::dynallocated | status_flags::evaluated);
        } else if ((seq_size >= 2) && (! (flags & status_flags::expanded))) {
                // Strip the content and the unit part from each term. Thus
-               // things like (-x+a)*(3*x-3*a) automagically turn into - 3*(x-a)2
+               // things like (-x+a)*(3*x-3*a) automagically turn into - 3*(x-a)^2
 
                epvector::const_iterator last = seq.end();
                epvector::const_iterator i = seq.begin();
@@ -552,8 +534,7 @@ ex mul::eval(int level) const
                        primitive->setflag(status_flags::dynallocated);
                        primitive->clearflag(status_flags::hash_calculated);
                        primitive->overall_coeff = ex_to<numeric>(primitive->overall_coeff).div_dyn(c);
-                       for (epvector::iterator ai = primitive->seq.begin();
-                                       ai != primitive->seq.end(); ++ai)
+                       for (epvector::iterator ai = primitive->seq.begin(); ai != primitive->seq.end(); ++ai)
                                ai->coeff = ex_to<numeric>(ai->coeff).div_dyn(c);
                        
                        s->push_back(expair(*primitive, _ex1));
@@ -737,8 +718,8 @@ bool tryfactsubs(const ex & origfactor, const ex & patternfactor, int & nummatch
   * is true for factors that have been matched by the current match.
   */
 bool algebraic_match_mul_with_mul(const mul &e, const ex &pat, exmap& repls,
-               int factor, int &nummatches, const std::vector<bool> &subsed,
-               std::vector<bool> &matched)
+                                  int factor, int &nummatches, const std::vector<bool> &subsed,
+                                  std::vector<bool> &matched)
 {
        GINAC_ASSERT(subsed.size() == e.nops());
        GINAC_ASSERT(matched.size() == e.nops());
@@ -936,7 +917,7 @@ unsigned mul::return_type() const
        // all factors checked
        return all_commutative ? return_types::commutative : return_types::noncommutative;
 }
-   
+
 return_type_t mul::return_type_tinfo() const
 {
        if (seq.empty())
@@ -972,7 +953,7 @@ expair mul::split_ex_to_pair(const ex & e) const
        }
        return expair(e,_ex1);
 }
-       
+
 expair mul::combine_ex_with_coeff_to_pair(const ex & e,
                                           const ex & c) const
 {
@@ -985,7 +966,7 @@ expair mul::combine_ex_with_coeff_to_pair(const ex & e,
 
        return split_ex_to_pair(power(e,c));
 }
-       
+
 expair mul::combine_pair_with_coeff_to_pair(const expair & p,
                                             const ex & c) const
 {
@@ -998,7 +979,7 @@ expair mul::combine_pair_with_coeff_to_pair(const expair & p,
 
        return split_ex_to_pair(power(recombine_pair_to_ex(p),c));
 }
-       
+
 ex mul::recombine_pair_to_ex(const expair & p) const
 {
        if (ex_to<numeric>(p.coeff).is_equal(*_num1_p)) 
@@ -1010,22 +991,22 @@ ex mul::recombine_pair_to_ex(const expair & p) const
 bool mul::expair_needs_further_processing(epp it)
 {
        if (is_exactly_a<mul>(it->rest) &&
-               ex_to<numeric>(it->coeff).is_integer()) {
+           ex_to<numeric>(it->coeff).is_integer()) {
                // combined pair is product with integer power -> expand it
                *it = split_ex_to_pair(recombine_pair_to_ex(*it));
                return true;
        }
        if (is_exactly_a<numeric>(it->rest)) {
+               if (it->coeff.is_equal(_ex1)) {
+                       // pair has coeff 1 and must be moved to the end
+                       return true;
+               }
                expair ep = split_ex_to_pair(recombine_pair_to_ex(*it));
                if (!ep.is_equal(*it)) {
                        // combined pair is a numeric power which can be simplified
                        *it = ep;
                        return true;
                }
-               if (it->coeff.is_equal(_ex1)) {
-                       // combined pair has coeff 1 and must be moved to the end
-                       return true;
-               }
        }
        return false;
 }