#include "mul.h"
#include "matrix.h"
#include "archive.h"
-#include "debugmsg.h"
#include "utils.h"
namespace GiNaC {
GINAC_IMPLEMENT_REGISTERED_CLASS(add, expairseq)
//////////
-// default constructor, destructor, copy constructor assignment operator and helpers
+// default ctor, dtor, copy ctor, assignment operator and helpers
//////////
add::add()
{
- debugmsg("add default constructor",LOGLEVEL_CONSTRUCT);
tinfo_key = TINFO_add;
}
add::add(const ex & lh, const ex & rh)
{
- debugmsg("add constructor from ex,ex",LOGLEVEL_CONSTRUCT);
tinfo_key = TINFO_add;
- overall_coeff = _ex0();
+ overall_coeff = _ex0;
construct_from_2_ex(lh,rh);
GINAC_ASSERT(is_canonical());
}
add::add(const exvector & v)
{
- debugmsg("add constructor from exvector",LOGLEVEL_CONSTRUCT);
tinfo_key = TINFO_add;
- overall_coeff = _ex0();
+ overall_coeff = _ex0;
construct_from_exvector(v);
GINAC_ASSERT(is_canonical());
}
add::add(const epvector & v)
{
- debugmsg("add constructor from epvector",LOGLEVEL_CONSTRUCT);
tinfo_key = TINFO_add;
- overall_coeff = _ex0();
+ overall_coeff = _ex0;
construct_from_epvector(v);
GINAC_ASSERT(is_canonical());
}
add::add(const epvector & v, const ex & oc)
{
- debugmsg("add constructor from epvector,ex",LOGLEVEL_CONSTRUCT);
tinfo_key = TINFO_add;
overall_coeff = oc;
construct_from_epvector(v);
add::add(epvector * vp, const ex & oc)
{
- debugmsg("add constructor from epvector *,ex",LOGLEVEL_CONSTRUCT);
tinfo_key = TINFO_add;
GINAC_ASSERT(vp!=0);
overall_coeff = oc;
DEFAULT_ARCHIVING(add)
//////////
-// functions overriding virtual functions from bases classes
+// functions overriding virtual functions from base classes
//////////
// public
void add::print(const print_context & c, unsigned level) const
{
- debugmsg("add print", LOGLEVEL_PRINT);
-
if (is_a<print_tree>(c)) {
inherited::print(c, level);
while (it != itend) {
// If the coefficient is -1, it is replaced by a single minus sign
- if (it->coeff.compare(_num1()) == 0) {
- it->rest.bp->print(c, precedence());
- } else if (it->coeff.compare(_num_1()) == 0) {
+ if (it->coeff.compare(_num1) == 0) {
+ it->rest.print(c, precedence());
+ } else if (it->coeff.compare(_num_1) == 0) {
c.s << "-";
- it->rest.bp->print(c, precedence());
- } else if (ex_to<numeric>(it->coeff).numer().compare(_num1()) == 0) {
- it->rest.bp->print(c, precedence());
+ it->rest.print(c, precedence());
+ } else if (ex_to<numeric>(it->coeff).numer().compare(_num1) == 0) {
+ it->rest.print(c, precedence());
c.s << "/";
ex_to<numeric>(it->coeff).denom().print(c, precedence());
- } else if (ex_to<numeric>(it->coeff).numer().compare(_num_1()) == 0) {
+ } else if (ex_to<numeric>(it->coeff).numer().compare(_num_1) == 0) {
c.s << "-";
- it->rest.bp->print(c, precedence());
+ it->rest.print(c, precedence());
c.s << "/";
ex_to<numeric>(it->coeff).denom().print(c, precedence());
} else {
- it->coeff.bp->print(c, precedence());
+ it->coeff.print(c, precedence());
c.s << "*";
- it->rest.bp->print(c, precedence());
+ it->rest.print(c, precedence());
}
// Separator is "+", except if the following expression would have a leading minus sign
++it;
- if (it != itend && !(it->coeff.compare(_num0()) < 0 || (it->coeff.compare(_num1()) == 0 && is_exactly_a<numeric>(it->rest) && it->rest.compare(_num0()) < 0)))
+ if (it != itend && !(it->coeff.compare(_num0) < 0 || (it->coeff.compare(_num1) == 0 && is_exactly_a<numeric>(it->rest) && it->rest.compare(_num0) < 0)))
c.s << "+";
}
if (!overall_coeff.is_zero()) {
if (overall_coeff.info(info_flags::positive))
c.s << '+';
- overall_coeff.bp->print(c, precedence());
+ overall_coeff.print(c, precedence());
}
-
+
if (precedence() <= level)
c.s << ")";
+ } else if (is_a<print_python_repr>(c)) {
+
+ c.s << class_name() << '(';
+ op(0).print(c);
+ for (unsigned i=1; i<nops(); ++i) {
+ c.s << ',';
+ op(i).print(c);
+ }
+ c.s << ')';
+
} else {
if (precedence() <= level) {
if (coeff.csgn() == -1) c.s << '-';
first = false;
}
- if (!coeff.is_equal(_num1()) &&
- !coeff.is_equal(_num_1())) {
+ if (!coeff.is_equal(_num1) &&
+ !coeff.is_equal(_num_1)) {
if (coeff.is_rational()) {
if (coeff.is_negative())
(-coeff).print(c);
++i;
}
- return (new add(coeffseq, n==0 ? overall_coeff : _ex0()))->setflag(status_flags::dynallocated);
+ return (new add(coeffseq, n==0 ? overall_coeff : _ex0))->setflag(status_flags::dynallocated);
}
+/** Perform automatic term rewriting rules in this class. In the following
+ * x stands for a symbolic variables of type ex and c stands for such
+ * an expression that contain a plain number.
+ * - +(;c) -> c
+ * - +(x;1) -> x
+ *
+ * @param level cut-off in recursive evaluation */
ex add::eval(int level) const
{
- // simplifications: +(;c) -> c
- // +(x;1) -> x
-
- debugmsg("add eval",LOGLEVEL_MEMBER_FUNCTION);
-
epvector *evaled_seqp = evalchildren(level);
if (evaled_seqp) {
// do more evaluation later
#ifdef DO_GINAC_ASSERT
epvector::const_iterator i = seq.begin(), end = seq.end();
while (i != end) {
- GINAC_ASSERT(!is_ex_exactly_of_type(i->rest,add));
+ GINAC_ASSERT(!is_exactly_a<add>(i->rest));
if (is_ex_exactly_of_type(i->rest,numeric))
dbgprint();
- GINAC_ASSERT(!is_ex_exactly_of_type(i->rest,numeric));
+ GINAC_ASSERT(!is_exactly_a<numeric>(i->rest));
++i;
}
#endif // def DO_GINAC_ASSERT
}
int seq_size = seq.size();
- if (seq_size==0) {
+ if (seq_size == 0) {
// +(;c) -> c
return overall_coeff;
- } else if ((seq_size==1) && overall_coeff.is_zero()) {
+ } else if (seq_size == 1 && overall_coeff.is_zero()) {
// +(x;0) -> x
return recombine_pair_to_ex(*(seq.begin()));
+ } else if (!overall_coeff.is_zero() && seq[0].rest.return_type() != return_types::commutative) {
+ throw (std::logic_error("add::eval(): sum of non-commutative objects has non-zero numeric term"));
}
return this->hold();
}
sum = sum.add(ex_to<matrix>(m));
} else
all_matrices = false;
- it++;
+ ++it;
}
if (all_matrices) {
s->push_back(combine_ex_with_coeff_to_pair(i->rest.diff(y), i->coeff));
++i;
}
- return (new add(s, _ex0()))->setflag(status_flags::dynallocated);
+ return (new add(s, _ex0))->setflag(status_flags::dynallocated);
}
int add::compare_same_type(const basic & other) const
{
if (is_ex_exactly_of_type(e,mul)) {
const mul &mulref(ex_to<mul>(e));
- ex numfactor = mulref.overall_coeff;
+ const ex &numfactor = mulref.overall_coeff;
mul *mulcopyp = new mul(mulref);
- mulcopyp->overall_coeff = _ex1();
+ mulcopyp->overall_coeff = _ex1;
mulcopyp->clearflag(status_flags::evaluated);
mulcopyp->clearflag(status_flags::hash_calculated);
mulcopyp->setflag(status_flags::dynallocated);
return expair(*mulcopyp,numfactor);
}
- return expair(e,_ex1());
+ return expair(e,_ex1);
}
expair add::combine_ex_with_coeff_to_pair(const ex & e,
const ex & c) const
{
- GINAC_ASSERT(is_ex_exactly_of_type(c, numeric));
+ GINAC_ASSERT(is_exactly_a<numeric>(c));
if (is_ex_exactly_of_type(e, mul)) {
const mul &mulref(ex_to<mul>(e));
- ex numfactor = mulref.overall_coeff;
+ const ex &numfactor = mulref.overall_coeff;
mul *mulcopyp = new mul(mulref);
- mulcopyp->overall_coeff = _ex1();
+ mulcopyp->overall_coeff = _ex1;
mulcopyp->clearflag(status_flags::evaluated);
mulcopyp->clearflag(status_flags::hash_calculated);
mulcopyp->setflag(status_flags::dynallocated);
- if (are_ex_trivially_equal(c, _ex1()))
+ if (are_ex_trivially_equal(c, _ex1))
return expair(*mulcopyp, numfactor);
- else if (are_ex_trivially_equal(numfactor, _ex1()))
+ else if (are_ex_trivially_equal(numfactor, _ex1))
return expair(*mulcopyp, c);
else
return expair(*mulcopyp, ex_to<numeric>(numfactor).mul_dyn(ex_to<numeric>(c)));
} else if (is_ex_exactly_of_type(e, numeric)) {
- if (are_ex_trivially_equal(c, _ex1()))
- return expair(e, _ex1());
- return expair(ex_to<numeric>(e).mul_dyn(ex_to<numeric>(c)), _ex1());
+ if (are_ex_trivially_equal(c, _ex1))
+ return expair(e, _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
{
- GINAC_ASSERT(is_ex_exactly_of_type(p.coeff,numeric));
- GINAC_ASSERT(is_ex_exactly_of_type(c,numeric));
+ GINAC_ASSERT(is_exactly_a<numeric>(p.coeff));
+ GINAC_ASSERT(is_exactly_a<numeric>(c));
if (is_ex_exactly_of_type(p.rest,numeric)) {
- GINAC_ASSERT(ex_to<numeric>(p.coeff).is_equal(_num1())); // should be normalized
- return expair(ex_to<numeric>(p.rest).mul_dyn(ex_to<numeric>(c)),_ex1());
+ GINAC_ASSERT(ex_to<numeric>(p.coeff).is_equal(_num1)); // should be normalized
+ return expair(ex_to<numeric>(p.rest).mul_dyn(ex_to<numeric>(c)),_ex1);
}
return expair(p.rest,ex_to<numeric>(p.coeff).mul_dyn(ex_to<numeric>(c)));
ex add::recombine_pair_to_ex(const expair & p) const
{
- if (ex_to<numeric>(p.coeff).is_equal(_num1()))
+ if (ex_to<numeric>(p.coeff).is_equal(_num1))
return p.rest;
else
- return p.rest*p.coeff;
+ return (new mul(p.rest,p.coeff))->setflag(status_flags::dynallocated);
}
ex add::expand(unsigned options) const
git://www.ginac.de / ginac.git / blobdiff