* Implementation of GiNaC's sums of expressions. */
/*
- * GiNaC Copyright (C) 1999-2014 Johannes Gutenberg University Mainz, Germany
+ * GiNaC Copyright (C) 1999-2015 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
epvector::const_iterator i = seq.begin(), end = seq.end();
while (i != end) {
ex restcoeff = i->rest.coeff(s, n);
- if (!restcoeff.is_zero()) {
- if (do_clifford) {
- if (clifford_max_label(restcoeff) == -1) {
- coeffseq_cliff->push_back(combine_ex_with_coeff_to_pair(ncmul(restcoeff, dirac_ONE(rl)), i->coeff));
+ if (!restcoeff.is_zero()) {
+ if (do_clifford) {
+ if (clifford_max_label(restcoeff) == -1) {
+ coeffseq_cliff->push_back(combine_ex_with_coeff_to_pair(ncmul(restcoeff, dirac_ONE(rl)), i->coeff));
} else {
- coeffseq_cliff->push_back(combine_ex_with_coeff_to_pair(restcoeff, i->coeff));
+ coeffseq_cliff->push_back(combine_ex_with_coeff_to_pair(restcoeff, i->coeff));
nonscalar = true;
- }
+ }
}
coeffseq->push_back(combine_ex_with_coeff_to_pair(restcoeff, i->coeff));
}
ex add::eval(int level) const
{
std::auto_ptr<epvector> evaled_seqp = evalchildren(level);
- if (evaled_seqp.get()) {
+ if (unlikely(evaled_seqp.get() != 0)) {
// do more evaluation later
return (new add(evaled_seqp, overall_coeff))->
setflag(status_flags::dynallocated);
if (is_exactly_a<mul>(e)) {
const mul &mulref(ex_to<mul>(e));
const ex &numfactor = mulref.overall_coeff;
+ if (numfactor.is_equal(_ex1))
+ return expair(e, _ex1);
mul *mulcopyp = new mul(mulref);
mulcopyp->overall_coeff = _ex1;
mulcopyp->clearflag(status_flags::evaluated);
}
expair add::combine_ex_with_coeff_to_pair(const ex & e,
- const ex & c) const
+ const ex & c) const
{
GINAC_ASSERT(is_exactly_a<numeric>(c));
if (is_exactly_a<mul>(e)) {
const mul &mulref(ex_to<mul>(e));
const ex &numfactor = mulref.overall_coeff;
+ if (numfactor.is_equal(_ex1))
+ return expair(e, c);
mul *mulcopyp = new mul(mulref);
mulcopyp->overall_coeff = _ex1;
mulcopyp->clearflag(status_flags::evaluated);
mulcopyp->setflag(status_flags::dynallocated);
if (c.is_equal(_ex1))
return expair(*mulcopyp, numfactor);
- else if (numfactor.is_equal(_ex1))
- return expair(*mulcopyp, c);
else
return expair(*mulcopyp, ex_to<numeric>(numfactor).mul_dyn(ex_to<numeric>(c)));
} else if (is_exactly_a<numeric>(e)) {
if (c.is_equal(_ex1))
return expair(e, _ex1);
+ if (e.is_equal(_ex1))
+ return expair(c, _ex1);
return expair(ex_to<numeric>(e).mul_dyn(ex_to<numeric>(c)), _ex1);
}
return expair(e, c);
}
expair add::combine_pair_with_coeff_to_pair(const expair & p,
- const ex & c) const
+ const ex & c) const
{
GINAC_ASSERT(is_exactly_a<numeric>(p.coeff));
GINAC_ASSERT(is_exactly_a<numeric>(c));