-$maxargs=13;
+# This perl script automatically generates function.h and function.cpp
+
+# function.pl options: \$maxargs=${maxargs}
+#
+# GiNaC Copyright (C) 1999-2009 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
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+
+$maxargs=14;
sub generate_seq {
my ($seq_template,$n)=@_;
}
sub generate_from_to {
- my ($template,$seq_template1,$seq_template2,$from,$to)=@_;
+ my ($template,$seq_template1,$seq_template2,$seq_template3,$from,$to)=@_;
my ($res,$N,$SEQ);
$res='';
for ($N=$from; $N<=$to; $N++) {
$SEQ1=generate_seq($seq_template1,$N);
$SEQ2=generate_seq($seq_template2,$N);
+ $SEQ3=generate_seq($seq_template3,$N);
$res .= eval('"' . $template . '"');
$SEQ1=''; # to avoid main::SEQ1 used only once warning
$SEQ2=''; # same as above
+ $SEQ3=''; # same as above
}
return $res;
}
sub generate {
- my ($template,$seq_template1,$seq_template2)=@_;
- return generate_from_to($template,$seq_template1,$seq_template2,1,$maxargs);
+ my ($template,$seq_template1,$seq_template2,$seq_template3)=@_;
+ return generate_from_to($template,$seq_template1,$seq_template2,$seq_template3,1,$maxargs);
}
-$declare_function_macro = <<'END_OF_DECLARE_FUNCTION_1_AND_2P_MACRO';
-#define DECLARE_FUNCTION_1P(NAME) \
-extern const unsigned function_index_##NAME; \
-inline GiNaC::function NAME(const GiNaC::ex & p1) { \
- return GiNaC::function(function_index_##NAME, p1); \
-}
-#define DECLARE_FUNCTION_2P(NAME) \
-extern const unsigned function_index_##NAME; \
-inline GiNaC::function NAME(const GiNaC::ex & p1, const GiNaC::ex & p2) { \
- return GiNaC::function(function_index_##NAME, p1, p2); \
-}
-
-END_OF_DECLARE_FUNCTION_1_AND_2P_MACRO
-
-$declare_function_macro .= generate_from_to(
- <<'END_OF_DECLARE_FUNCTION_MACRO','const GiNaC::ex & p${N}','p${N}',3,$maxargs);
+$declare_function_macro = generate(
+ <<'END_OF_DECLARE_FUNCTION_MACRO','typename T${N}','const T${N} & p${N}','GiNaC::ex(p${N})');
#define DECLARE_FUNCTION_${N}P(NAME) \\
-extern const unsigned function_index_##NAME; \\
-inline GiNaC::function NAME(${SEQ1}) { \\
- return GiNaC::function(function_index_##NAME, ${SEQ2}); \\
+class NAME##_SERIAL { public: static unsigned serial; }; \\
+const unsigned NAME##_NPARAMS = ${N}; \\
+template<${SEQ1}> const GiNaC::function NAME(${SEQ2}) { \\
+ return GiNaC::function(NAME##_SERIAL::serial, ${SEQ3}); \\
}
END_OF_DECLARE_FUNCTION_MACRO
$typedef_eval_funcp=generate(
'typedef ex (* eval_funcp_${N})(${SEQ1});'."\n",
-'const ex &','');
+'const ex &','','');
$typedef_evalf_funcp=generate(
'typedef ex (* evalf_funcp_${N})(${SEQ1});'."\n",
-'const ex &','');
+'const ex &','','');
+
+$typedef_conjugate_funcp=generate(
+'typedef ex (* conjugate_funcp_${N})(${SEQ1});'."\n",
+'const ex &','','');
+
+$typedef_real_part_funcp=generate(
+'typedef ex (* real_part_funcp_${N})(${SEQ1});'."\n",
+'const ex &','','');
+
+$typedef_imag_part_funcp=generate(
+'typedef ex (* imag_part_funcp_${N})(${SEQ1});'."\n",
+'const ex &','','');
$typedef_derivative_funcp=generate(
'typedef ex (* derivative_funcp_${N})(${SEQ1}, unsigned);'."\n",
-'const ex &','');
+'const ex &','','');
+
+$typedef_power_funcp=generate(
+'typedef ex (* power_funcp_${N})(${SEQ1}, const ex &);'."\n",
+'const ex &','','');
$typedef_series_funcp=generate(
'typedef ex (* series_funcp_${N})(${SEQ1}, const relational &, int, unsigned);'."\n",
-'const ex &','');
+'const ex &','','');
+
+$typedef_print_funcp=generate(
+'typedef void (* print_funcp_${N})(${SEQ1}, const print_context &);'."\n",
+'const ex &','','');
-$eval_func_interface=generate(' function_options & eval_func(eval_funcp_${N} e);'."\n",'','');
+$eval_func_interface=generate(' function_options & eval_func(eval_funcp_${N} e);'."\n",'','','');
-$evalf_func_interface=generate(' function_options & evalf_func(evalf_funcp_${N} ef);'."\n",'','');
+$evalf_func_interface=generate(' function_options & evalf_func(evalf_funcp_${N} ef);'."\n",'','','');
-$derivative_func_interface=generate(' function_options & derivative_func(derivative_funcp_${N} d);'."\n",'','');
+$conjugate_func_interface=generate(' function_options & conjugate_func(conjugate_funcp_${N} d);'."\n",'','','');
-$series_func_interface=generate(' function_options & series_func(series_funcp_${N} s);'."\n",'','');
+$real_part_func_interface=generate(' function_options & real_part_func(real_part_funcp_${N} d);'."\n",'','','');
+
+$imag_part_func_interface=generate(' function_options & imag_part_func(imag_part_funcp_${N} d);'."\n",'','','');
+
+$derivative_func_interface=generate(' function_options & derivative_func(derivative_funcp_${N} d);'."\n",'','','');
+
+$power_func_interface=generate(' function_options & power_func(power_funcp_${N} d);'."\n",'','','');
+
+$series_func_interface=generate(' function_options & series_func(series_funcp_${N} s);'."\n",'','','');
+
+$print_func_interface=generate(
+ <<'END_OF_PRINT_FUNC_INTERFACE','','','');
+ template <class Ctx> function_options & print_func(print_funcp_${N} p)
+ {
+ test_and_set_nparams(${N});
+ set_print_func(Ctx::get_class_info_static().options.get_id(), print_funcp(p));
+ return *this;
+ }
+END_OF_PRINT_FUNC_INTERFACE
$constructors_interface=generate(
' function(unsigned ser, ${SEQ1});'."\n",
-'const ex & param${N}','');
+'const ex & param${N}','','');
$constructors_implementation=generate(
- <<'END_OF_CONSTRUCTORS_IMPLEMENTATION','const ex & param${N}','param${N}');
+ <<'END_OF_CONSTRUCTORS_IMPLEMENTATION','const ex & param${N}','param${N}','');
function::function(unsigned ser, ${SEQ1})
: exprseq(${SEQ2}), serial(ser)
{
- debugmsg(\"function ctor from unsigned,${N}*ex\",LOGLEVEL_CONSTRUCT);
- tinfo_key = TINFO_function;
}
END_OF_CONSTRUCTORS_IMPLEMENTATION
$eval_switch_statement=generate(
- <<'END_OF_EVAL_SWITCH_STATEMENT','seq[${N}-1]','');
+ <<'END_OF_EVAL_SWITCH_STATEMENT','seq[${N}-1]','','');
case ${N}:
- eval_result=((eval_funcp_${N})(registered_functions()[serial].eval_f))(${SEQ1});
+ eval_result = ((eval_funcp_${N})(opt.eval_f))(${SEQ1});
break;
END_OF_EVAL_SWITCH_STATEMENT
$evalf_switch_statement=generate(
- <<'END_OF_EVALF_SWITCH_STATEMENT','eseq[${N}-1]','');
+ <<'END_OF_EVALF_SWITCH_STATEMENT','eseq[${N}-1]','','');
case ${N}:
- return ((evalf_funcp_${N})(registered_functions()[serial].evalf_f))(${SEQ1});
+ return ((evalf_funcp_${N})(opt.evalf_f))(${SEQ1});
END_OF_EVALF_SWITCH_STATEMENT
+$conjugate_switch_statement=generate(
+ <<'END_OF_DIFF_SWITCH_STATEMENT','seq[${N}-1]','','');
+ case ${N}:
+ return ((conjugate_funcp_${N})(opt.conjugate_f))(${SEQ1});
+END_OF_DIFF_SWITCH_STATEMENT
+
+$real_part_switch_statement=generate(
+ <<'END_OF_DIFF_SWITCH_STATEMENT','seq[${N}-1]','','');
+ case ${N}:
+ return ((real_part_funcp_${N})(opt.real_part_f))(${SEQ1});
+END_OF_DIFF_SWITCH_STATEMENT
+
+$imag_part_switch_statement=generate(
+ <<'END_OF_DIFF_SWITCH_STATEMENT','seq[${N}-1]','','');
+ case ${N}:
+ return ((imag_part_funcp_${N})(opt.imag_part_f))(${SEQ1});
+END_OF_DIFF_SWITCH_STATEMENT
+
$diff_switch_statement=generate(
- <<'END_OF_DIFF_SWITCH_STATEMENT','seq[${N}-1]','');
+ <<'END_OF_DIFF_SWITCH_STATEMENT','seq[${N}-1]','','');
case ${N}:
- return ((derivative_funcp_${N})(registered_functions()[serial].derivative_f))(${SEQ1},diff_param);
+ return ((derivative_funcp_${N})(opt.derivative_f))(${SEQ1},diff_param);
END_OF_DIFF_SWITCH_STATEMENT
+$power_switch_statement=generate(
+ <<'END_OF_POWER_SWITCH_STATEMENT','seq[${N}-1]','','');
+ case ${N}:
+ return ((power_funcp_${N})(opt.power_f))(${SEQ1},power_param);
+END_OF_POWER_SWITCH_STATEMENT
+
$series_switch_statement=generate(
- <<'END_OF_SERIES_SWITCH_STATEMENT','seq[${N}-1]','');
+ <<'END_OF_SERIES_SWITCH_STATEMENT','seq[${N}-1]','','');
case ${N}:
try {
- res = ((series_funcp_${N})(registered_functions()[serial].series_f))(${SEQ1},r,order,options);
+ res = ((series_funcp_${N})(opt.series_f))(${SEQ1},r,order,options);
} catch (do_taylor) {
res = basic::series(r, order, options);
}
return res;
END_OF_SERIES_SWITCH_STATEMENT
+$print_switch_statement=generate(
+ <<'END_OF_PRINT_SWITCH_STATEMENT','seq[${N}-1]','','');
+ case ${N}:
+ ((print_funcp_${N})(pdt[id]))(${SEQ1}, c);
+ break;
+END_OF_PRINT_SWITCH_STATEMENT
+
$eval_func_implementation=generate(
- <<'END_OF_EVAL_FUNC_IMPLEMENTATION','','');
+ <<'END_OF_EVAL_FUNC_IMPLEMENTATION','','','');
function_options & function_options::eval_func(eval_funcp_${N} e)
{
test_and_set_nparams(${N});
- eval_f=eval_funcp(e);
+ eval_f = eval_funcp(e);
return *this;
-}
+}
END_OF_EVAL_FUNC_IMPLEMENTATION
$evalf_func_implementation=generate(
- <<'END_OF_EVALF_FUNC_IMPLEMENTATION','','');
+ <<'END_OF_EVALF_FUNC_IMPLEMENTATION','','','');
function_options & function_options::evalf_func(evalf_funcp_${N} ef)
{
test_and_set_nparams(${N});
- evalf_f=evalf_funcp(ef);
+ evalf_f = evalf_funcp(ef);
return *this;
-}
+}
END_OF_EVALF_FUNC_IMPLEMENTATION
+$conjugate_func_implementation=generate(
+ <<'END_OF_CONJUGATE_FUNC_IMPLEMENTATION','','','');
+function_options & function_options::conjugate_func(conjugate_funcp_${N} c)
+{
+ test_and_set_nparams(${N});
+ conjugate_f = conjugate_funcp(c);
+ return *this;
+}
+END_OF_CONJUGATE_FUNC_IMPLEMENTATION
+
+$real_part_func_implementation=generate(
+ <<'END_OF_REAL_PART_FUNC_IMPLEMENTATION','','','');
+function_options & function_options::real_part_func(real_part_funcp_${N} c)
+{
+ test_and_set_nparams(${N});
+ real_part_f = real_part_funcp(c);
+ return *this;
+}
+END_OF_REAL_PART_FUNC_IMPLEMENTATION
+
+$imag_part_func_implementation=generate(
+ <<'END_OF_IMAG_PART_FUNC_IMPLEMENTATION','','','');
+function_options & function_options::imag_part_func(imag_part_funcp_${N} c)
+{
+ test_and_set_nparams(${N});
+ imag_part_f = imag_part_funcp(c);
+ return *this;
+}
+END_OF_IMAG_PART_FUNC_IMPLEMENTATION
+
$derivative_func_implementation=generate(
- <<'END_OF_DERIVATIVE_FUNC_IMPLEMENTATION','','');
+ <<'END_OF_DERIVATIVE_FUNC_IMPLEMENTATION','','','');
function_options & function_options::derivative_func(derivative_funcp_${N} d)
{
test_and_set_nparams(${N});
- derivative_f=derivative_funcp(d);
+ derivative_f = derivative_funcp(d);
return *this;
-}
+}
END_OF_DERIVATIVE_FUNC_IMPLEMENTATION
+$power_func_implementation=generate(
+ <<'END_OF_POWER_FUNC_IMPLEMENTATION','','','');
+function_options & function_options::power_func(power_funcp_${N} d)
+{
+ test_and_set_nparams(${N});
+ power_f = power_funcp(d);
+ return *this;
+}
+END_OF_POWER_FUNC_IMPLEMENTATION
+
$series_func_implementation=generate(
- <<'END_OF_SERIES_FUNC_IMPLEMENTATION','','');
+ <<'END_OF_SERIES_FUNC_IMPLEMENTATION','','','');
function_options & function_options::series_func(series_funcp_${N} s)
{
test_and_set_nparams(${N});
- series_f=series_funcp(s);
+ series_f = series_funcp(s);
return *this;
-}
+}
END_OF_SERIES_FUNC_IMPLEMENTATION
$interface=<<END_OF_INTERFACE;
/** \@file function.h
*
- * Interface to abstract class function (new function concept). */
+ * Interface to class of symbolic functions. */
/*
* This file was generated automatically by function.pl.
* Please do not modify it directly, edit the perl script instead!
* function.pl options: \$maxargs=${maxargs}
*
- * GiNaC Copyright (C) 1999-2001 Johannes Gutenberg University Mainz, Germany
+ * GiNaC Copyright (C) 1999-2009 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
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
-#ifndef __GINAC_FUNCTION_H__
-#define __GINAC_FUNCTION_H__
+#ifndef GINAC_FUNCTION_H
+#define GINAC_FUNCTION_H
-#include <string>
-#include <vector>
+#include "exprseq.h"
-// CINT needs <algorithm> to work properly with <vector>
+// CINT needs <algorithm> to work properly with <vector>
#include <algorithm>
-
-#include "exprseq.h"
+#include <string>
+#include <vector>
// the following lines have been generated for max. ${maxargs} parameters
$declare_function_macro
// end of generated lines
#define REGISTER_FUNCTION(NAME,OPT) \\
-const unsigned function_index_##NAME= \\
- GiNaC::function::register_new(GiNaC::function_options(#NAME).OPT);
-
-#define REGISTER_FUNCTION_OLD(NAME,E,EF,D,S) \\
-const unsigned function_index_##NAME= \\
- GiNaC::function::register_new(GiNaC::function_options(#NAME). \\
- eval_func(E). \\
- evalf_func(EF). \\
- derivative_func(D). \\
- series_func(S));
-
-#define BEGIN_TYPECHECK \\
-bool automatic_typecheck=true;
-
-#define TYPECHECK(VAR,TYPE) \\
-if (!is_ex_exactly_of_type(VAR,TYPE)) { \\
- automatic_typecheck=false; \\
-} else
-
-#define TYPECHECK_INTEGER(VAR) \\
-if (!(VAR).info(GiNaC::info_flags::integer)) { \\
- automatic_typecheck=false; \\
-} else
-
-#define END_TYPECHECK(RV) \\
-{} \\
-if (!automatic_typecheck) { \\
- return RV.hold(); \\
-}
+unsigned NAME##_SERIAL::serial = \\
+ GiNaC::function::register_new(GiNaC::function_options(#NAME, NAME##_NPARAMS).OPT);
namespace GiNaC {
class function;
+class symmetry;
typedef ex (* eval_funcp)();
typedef ex (* evalf_funcp)();
+typedef ex (* conjugate_funcp)();
+typedef ex (* real_part_funcp)();
+typedef ex (* imag_part_funcp)();
typedef ex (* derivative_funcp)();
+typedef ex (* power_funcp)();
typedef ex (* series_funcp)();
+typedef void (* print_funcp)();
// the following lines have been generated for max. ${maxargs} parameters
$typedef_eval_funcp
$typedef_evalf_funcp
+$typedef_conjugate_funcp
+$typedef_real_part_funcp
+$typedef_imag_part_funcp
$typedef_derivative_funcp
+$typedef_power_funcp
$typedef_series_funcp
+$typedef_print_funcp
// end of generated lines
+// Alternatively, an exvector may be passed into the static function, instead
+// of individual ex objects. Then, the number of arguments is not limited.
+typedef ex (* eval_funcp_exvector)(const exvector &);
+typedef ex (* evalf_funcp_exvector)(const exvector &);
+typedef ex (* conjugate_funcp_exvector)(const exvector &);
+typedef ex (* real_part_funcp_exvector)(const exvector &);
+typedef ex (* imag_part_funcp_exvector)(const exvector &);
+typedef ex (* derivative_funcp_exvector)(const exvector &, unsigned);
+typedef ex (* power_funcp_exvector)(const exvector &, const ex &);
+typedef ex (* series_funcp_exvector)(const exvector &, const relational &, int, unsigned);
+typedef void (* print_funcp_exvector)(const exvector &, const print_context &);
+
+
class function_options
{
friend class function;
+ friend class fderivative;
public:
function_options();
function_options(std::string const & n, std::string const & tn=std::string());
+ function_options(std::string const & n, unsigned np);
~function_options();
- void initialize(void);
+ void initialize();
+
+ function_options & dummy() { return *this; }
function_options & set_name(std::string const & n, std::string const & tn=std::string());
+ function_options & latex_name(std::string const & tn);
// the following lines have been generated for max. ${maxargs} parameters
$eval_func_interface
$evalf_func_interface
+$conjugate_func_interface
+$real_part_func_interface
+$imag_part_func_interface
$derivative_func_interface
+$power_func_interface
$series_func_interface
+$print_func_interface
// end of generated lines
- function_options & set_return_type(unsigned rt, unsigned rtt=0);
- function_options & do_not_evalf_params(void);
+ function_options & eval_func(eval_funcp_exvector e);
+ function_options & evalf_func(evalf_funcp_exvector ef);
+ function_options & conjugate_func(conjugate_funcp_exvector d);
+ function_options & real_part_func(real_part_funcp_exvector d);
+ function_options & imag_part_func(imag_part_funcp_exvector d);
+ function_options & derivative_func(derivative_funcp_exvector d);
+ function_options & power_func(power_funcp_exvector d);
+ function_options & series_func(series_funcp_exvector s);
+
+ template <class Ctx> function_options & print_func(print_funcp_exvector p)
+ {
+ print_use_exvector_args = true;
+ set_print_func(Ctx::get_class_info_static().options.get_id(), print_funcp(p));
+ return *this;
+ }
+
+ function_options & set_return_type(unsigned rt, const return_type_t* rtt = 0);
+ function_options & do_not_evalf_params();
function_options & remember(unsigned size, unsigned assoc_size=0,
unsigned strategy=remember_strategies::delete_never);
function_options & overloaded(unsigned o);
- void test_and_set_nparams(unsigned n);
- std::string get_name(void) const { return name; }
- unsigned get_nparams(void) const { return nparams; }
+ function_options & set_symmetry(const symmetry & s);
+
+ std::string get_name() const { return name; }
+ unsigned get_nparams() const { return nparams; }
protected:
+ bool has_derivative() const { return derivative_f != NULL; }
+ bool has_power() const { return power_f != NULL; }
+ void test_and_set_nparams(unsigned n);
+ void set_print_func(unsigned id, print_funcp f);
+
std::string name;
std::string TeX_name;
eval_funcp eval_f;
evalf_funcp evalf_f;
+ conjugate_funcp conjugate_f;
+ real_part_funcp real_part_f;
+ imag_part_funcp imag_part_f;
derivative_funcp derivative_f;
+ power_funcp power_f;
series_funcp series_f;
+ std::vector<print_funcp> print_dispatch_table;
bool evalf_params_first;
bool use_return_type;
unsigned return_type;
- unsigned return_type_tinfo;
+ return_type_t return_type_tinfo;
bool use_remember;
unsigned remember_size;
unsigned remember_assoc_size;
unsigned remember_strategy;
+ bool eval_use_exvector_args;
+ bool evalf_use_exvector_args;
+ bool conjugate_use_exvector_args;
+ bool real_part_use_exvector_args;
+ bool imag_part_use_exvector_args;
+ bool derivative_use_exvector_args;
+ bool power_use_exvector_args;
+ bool series_use_exvector_args;
+ bool print_use_exvector_args;
+
unsigned functions_with_same_name;
+
+ ex symtree;
};
+
+/** Exception class thrown by classes which provide their own series expansion
+ * to signal that ordinary Taylor expansion is safe. */
+class do_taylor {};
+
+
/** The class function is used to implement builtin functions like sin, cos...
and user defined functions */
class function : public exprseq
// CINT has a linking problem
#ifndef __MAKECINT__
- friend void ginsh_get_ginac_functions(void);
+ friend void ginsh_get_ginac_functions();
#endif // def __MAKECINT__
friend class remember_table_entry;
// member functions
- // other ctors
+ // other constructors
public:
function(unsigned ser);
// the following lines have been generated for max. ${maxargs} parameters
$constructors_interface
// end of generated lines
function(unsigned ser, const exprseq & es);
- function(unsigned ser, const exvector & v, bool discardable=0);
- function(unsigned ser, exvector * vp); // vp will be deleted
+ function(unsigned ser, const exvector & v, bool discardable = false);
+ function(unsigned ser, std::auto_ptr<exvector> vp);
- // functions overriding virtual functions from bases classes
+ // functions overriding virtual functions from base classes
public:
- void printraw(std::ostream & os) const;
- void print(std::ostream & os, unsigned upper_precedence=0) const;
- void printtree(std::ostream & os, unsigned indent) const;
- void printcsrc(std::ostream & os, unsigned type, unsigned upper_precedence=0) const;
- int degree(const ex & s) const;
- int ldegree(const ex & s) const;
- ex coeff(const ex & s, int n = 1) const;
+ void print(const print_context & c, unsigned level = 0) const;
+ unsigned precedence() const {return 70;}
ex expand(unsigned options=0) const;
ex eval(int level=0) const;
ex evalf(int level=0) const;
- unsigned calchash(void) const;
+ ex eval_ncmul(const exvector & v) const;
+ unsigned calchash() const;
ex series(const relational & r, int order, unsigned options = 0) const;
- ex thisexprseq(const exvector & v) const;
- ex thisexprseq(exvector * vp) const;
+ ex thiscontainer(const exvector & v) const;
+ ex thiscontainer(std::auto_ptr<exvector> vp) const;
+ ex conjugate() const;
+ ex real_part() const;
+ ex imag_part() const;
+ void archive(archive_node& n) const;
+ void read_archive(const archive_node& n, lst& syms);
protected:
ex derivative(const symbol & s) const;
bool is_equal_same_type(const basic & other) const;
- unsigned return_type(void) const;
- unsigned return_type_tinfo(void) const;
+ bool match_same_type(const basic & other) const;
+ unsigned return_type() const;
+ return_type_t return_type_tinfo() const;
// new virtual functions which can be overridden by derived classes
// none
// non-virtual functions in this class
protected:
ex pderivative(unsigned diff_param) const; // partial differentiation
- static std::vector<function_options> & registered_functions(void);
+ static std::vector<function_options> & registered_functions();
bool lookup_remember_table(ex & result) const;
void store_remember_table(ex const & result) const;
public:
+ ex power(const ex & exp) const;
static unsigned register_new(function_options const & opt);
+ static unsigned current_serial;
static unsigned find_function(const std::string &name, unsigned nparams);
- unsigned getserial(void) const {return serial;}
-
+ unsigned get_serial() const {return serial;}
+ std::string get_name() const;
+
// member variables
protected:
unsigned serial;
};
+GINAC_DECLARE_UNARCHIVER(function);
// utility functions/macros
-inline const function &ex_to_function(const ex &e)
+
+template <typename T>
+inline bool is_the_function(const ex & x)
{
- return static_cast<const function &>(*e.bp);
+ return is_exactly_a<function>(x)
+ && ex_to<function>(x).get_serial() == T::serial;
}
-#define is_ex_the_function(OBJ, FUNCNAME) \\
- (is_ex_exactly_of_type(OBJ, function) && static_cast<GiNaC::function *>(OBJ.bp)->getserial() == function_index_##FUNCNAME)
-
-// global constants
-
-extern const function some_function;
-extern const std::type_info & typeid_function;
+// Check whether OBJ is the specified symbolic function.
+#define is_ex_the_function(OBJ, FUNCNAME) (GiNaC::is_the_function<FUNCNAME##_SERIAL>(OBJ))
} // namespace GiNaC
-#endif // ndef __GINAC_FUNCTION_H__
+#endif // ndef GINAC_FUNCTION_H
END_OF_INTERFACE
$implementation=<<END_OF_IMPLEMENTATION;
/** \@file function.cpp
*
- * Implementation of class function. */
+ * Implementation of class of symbolic functions. */
/*
* This file was generated automatically by function.pl.
* Please do not modify it directly, edit the perl script instead!
* function.pl options: \$maxargs=${maxargs}
*
- * GiNaC Copyright (C) 1999-2001 Johannes Gutenberg University Mainz, Germany
+ * GiNaC Copyright (C) 1999-2009 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
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
-#include <string>
-#include <stdexcept>
-#include <list>
-
#include "function.h"
+#include "operators.h"
+#include "fderivative.h"
#include "ex.h"
#include "lst.h"
+#include "symmetry.h"
+#include "print.h"
+#include "power.h"
#include "archive.h"
#include "inifcns.h"
+#include "tostring.h"
#include "utils.h"
-#include "debugmsg.h"
+#include "hash_seed.h"
#include "remember.h"
+#include <iostream>
+#include <limits>
+#include <list>
+#include <stdexcept>
+#include <string>
+
namespace GiNaC {
//////////
function_options::function_options(std::string const & n, std::string const & tn)
{
initialize();
- set_name(n,tn);
+ set_name(n, tn);
+}
+
+function_options::function_options(std::string const & n, unsigned np)
+{
+ initialize();
+ set_name(n, std::string());
+ nparams = np;
}
function_options::~function_options()
// nothing to clean up at the moment
}
-void function_options::initialize(void)
+void function_options::initialize()
{
- set_name("unnamed_function","\\\\operatorname{unnamed}");
- nparams=0;
- eval_f=evalf_f=derivative_f=series_f=0;
- evalf_params_first=true;
- use_return_type=false;
- use_remember=false;
- functions_with_same_name=1;
+ set_name("unnamed_function", "\\\\mbox{unnamed}");
+ nparams = 0;
+ eval_f = evalf_f = real_part_f = imag_part_f = conjugate_f = derivative_f
+ = power_f = series_f = 0;
+ evalf_params_first = true;
+ use_return_type = false;
+ eval_use_exvector_args = false;
+ evalf_use_exvector_args = false;
+ conjugate_use_exvector_args = false;
+ real_part_use_exvector_args = false;
+ imag_part_use_exvector_args = false;
+ derivative_use_exvector_args = false;
+ power_use_exvector_args = false;
+ series_use_exvector_args = false;
+ print_use_exvector_args = false;
+ use_remember = false;
+ functions_with_same_name = 1;
+ symtree = 0;
}
function_options & function_options::set_name(std::string const & n,
std::string const & tn)
{
- name=n;
- if (tn==std::string()) {
- TeX_name="\\\\operatorname{"+name+"}";
- } else {
- TeX_name=tn;
- }
+ name = n;
+ if (tn==std::string())
+ TeX_name = "\\\\mbox{"+name+"}";
+ else
+ TeX_name = tn;
+ return *this;
+}
+
+function_options & function_options::latex_name(std::string const & tn)
+{
+ TeX_name = tn;
return *this;
}
// the following lines have been generated for max. ${maxargs} parameters
$eval_func_implementation
$evalf_func_implementation
+$conjugate_func_implementation
+$real_part_func_implementation
+$imag_part_func_implementation
$derivative_func_implementation
+$power_func_implementation
$series_func_implementation
// end of generated lines
-function_options & function_options::set_return_type(unsigned rt, unsigned rtt)
+function_options& function_options::eval_func(eval_funcp_exvector e)
{
- use_return_type=true;
- return_type=rt;
- return_type_tinfo=rtt;
+ eval_use_exvector_args = true;
+ eval_f = eval_funcp(e);
+ return *this;
+}
+function_options& function_options::evalf_func(evalf_funcp_exvector ef)
+{
+ evalf_use_exvector_args = true;
+ evalf_f = evalf_funcp(ef);
+ return *this;
+}
+function_options& function_options::conjugate_func(conjugate_funcp_exvector c)
+{
+ conjugate_use_exvector_args = true;
+ conjugate_f = conjugate_funcp(c);
+ return *this;
+}
+function_options& function_options::real_part_func(real_part_funcp_exvector c)
+{
+ real_part_use_exvector_args = true;
+ real_part_f = real_part_funcp(c);
+ return *this;
+}
+function_options& function_options::imag_part_func(imag_part_funcp_exvector c)
+{
+ imag_part_use_exvector_args = true;
+ imag_part_f = imag_part_funcp(c);
+ return *this;
+}
+
+function_options& function_options::derivative_func(derivative_funcp_exvector d)
+{
+ derivative_use_exvector_args = true;
+ derivative_f = derivative_funcp(d);
+ return *this;
+}
+function_options& function_options::power_func(power_funcp_exvector d)
+{
+ power_use_exvector_args = true;
+ power_f = power_funcp(d);
+ return *this;
+}
+function_options& function_options::series_func(series_funcp_exvector s)
+{
+ series_use_exvector_args = true;
+ series_f = series_funcp(s);
return *this;
}
-function_options & function_options::do_not_evalf_params(void)
+function_options & function_options::set_return_type(unsigned rt, const return_type_t* rtt)
{
- evalf_params_first=false;
+ use_return_type = true;
+ return_type = rt;
+ if (rtt != 0)
+ return_type_tinfo = *rtt;
+ else
+ return_type_tinfo = make_return_type_t<function>();
+ return *this;
+}
+
+function_options & function_options::do_not_evalf_params()
+{
+ evalf_params_first = false;
return *this;
}
unsigned assoc_size,
unsigned strategy)
{
- use_remember=true;
- remember_size=size;
- remember_assoc_size=assoc_size;
- remember_strategy=strategy;
+ use_remember = true;
+ remember_size = size;
+ remember_assoc_size = assoc_size;
+ remember_strategy = strategy;
return *this;
}
function_options & function_options::overloaded(unsigned o)
{
- functions_with_same_name=o;
+ functions_with_same_name = o;
+ return *this;
+}
+
+function_options & function_options::set_symmetry(const symmetry & s)
+{
+ symtree = s;
return *this;
}
void function_options::test_and_set_nparams(unsigned n)
{
if (nparams==0) {
- nparams=n;
+ nparams = n;
} else if (nparams!=n) {
// we do not throw an exception here because this code is
// usually executed before main(), so the exception could not
- // caught anyhow
- std::cerr << "WARNING: number of parameters ("
+ // be caught anyhow
+ std::cerr << "WARNING: " << name << "(): number of parameters ("
<< n << ") differs from number set before ("
<< nparams << ")" << std::endl;
}
}
+void function_options::set_print_func(unsigned id, print_funcp f)
+{
+ if (id >= print_dispatch_table.size())
+ print_dispatch_table.resize(id + 1);
+ print_dispatch_table[id] = f;
+}
+
+/** This can be used as a hook for external applications. */
+unsigned function::current_serial = 0;
+
+
GINAC_IMPLEMENT_REGISTERED_CLASS(function, exprseq)
//////////
-// default ctor, dtor, copy ctor assignment operator and helpers
+// default constructor
//////////
// public
function::function() : serial(0)
{
- debugmsg("function default ctor",LOGLEVEL_CONSTRUCT);
- tinfo_key = TINFO_function;
-}
-
-// protected
-
-void function::copy(const function & other)
-{
- exprseq::copy(other);
- serial=other.serial;
-}
-
-void function::destroy(bool call_parent)
-{
- if (call_parent) exprseq::destroy(call_parent);
}
//////////
-// other ctors
+// other constructors
//////////
// public
function::function(unsigned ser) : serial(ser)
{
- debugmsg("function ctor from unsigned",LOGLEVEL_CONSTRUCT);
- tinfo_key = TINFO_function;
}
// the following lines have been generated for max. ${maxargs} parameters
function::function(unsigned ser, const exprseq & es) : exprseq(es), serial(ser)
{
- debugmsg("function ctor from unsigned,exprseq",LOGLEVEL_CONSTRUCT);
- tinfo_key = TINFO_function;
+
+ // Force re-evaluation even if the exprseq was already evaluated
+ // (the exprseq copy constructor copies the flags)
+ clearflag(status_flags::evaluated);
}
function::function(unsigned ser, const exvector & v, bool discardable)
: exprseq(v,discardable), serial(ser)
{
- debugmsg("function ctor from string,exvector,bool",LOGLEVEL_CONSTRUCT);
- tinfo_key = TINFO_function;
}
-function::function(unsigned ser, exvector * vp)
+function::function(unsigned ser, std::auto_ptr<exvector> vp)
: exprseq(vp), serial(ser)
{
- debugmsg("function ctor from unsigned,exvector *",LOGLEVEL_CONSTRUCT);
- tinfo_key = TINFO_function;
}
//////////
//////////
/** Construct object from archive_node. */
-function::function(const archive_node &n, const lst &sym_lst) : inherited(n, sym_lst)
+void function::read_archive(const archive_node& n, lst& sym_lst)
{
- debugmsg("function ctor from archive_node", LOGLEVEL_CONSTRUCT);
-
+ inherited::read_archive(n, sym_lst);
// Find serial number by function name
std::string s;
if (n.find_string("name", s)) {
serial = ser;
return;
}
- i++; ser++;
+ ++i; ++ser;
}
throw (std::runtime_error("unknown function '" + s + "' in archive"));
} else
throw (std::runtime_error("unnamed function in archive"));
}
-/** Unarchive the object. */
-ex function::unarchive(const archive_node &n, const lst &sym_lst)
-{
- return (new function(n, sym_lst))->setflag(status_flags::dynallocated);
-}
-
/** Archive the object. */
void function::archive(archive_node &n) const
{
n.add_string("name", registered_functions()[serial].name);
}
+GINAC_BIND_UNARCHIVER(function);
+
//////////
-// functions overriding virtual functions from bases classes
+// functions overriding virtual functions from base classes
//////////
// public
-void function::printraw(std::ostream & os) const
+void function::print(const print_context & c, unsigned level) const
{
- debugmsg("function printraw",LOGLEVEL_PRINT);
-
GINAC_ASSERT(serial<registered_functions().size());
+ const function_options &opt = registered_functions()[serial];
+ const std::vector<print_funcp> &pdt = opt.print_dispatch_table;
- os << class_name() << "(name=" << registered_functions()[serial].name;
- for (exvector::const_iterator it=seq.begin(); it!=seq.end(); ++it) {
- os << ",";
- (*it).bp->print(os);
- }
- os << ")";
-}
+ // Dynamically dispatch on print_context type
+ const print_context_class_info *pc_info = &c.get_class_info();
-void function::print(std::ostream & os, unsigned upper_precedence) const
-{
- debugmsg("function print",LOGLEVEL_PRINT);
+next_context:
+ unsigned id = pc_info->options.get_id();
+ if (id >= pdt.size() || pdt[id] == NULL) {
- GINAC_ASSERT(serial<registered_functions().size());
-
- os << registered_functions()[serial].name;
- printseq(os,'(',',',')',exprseq::precedence,function::precedence);
-}
-
-void function::printtree(std::ostream & os, unsigned indent) const
-{
- debugmsg("function printtree",LOGLEVEL_PRINT);
-
- GINAC_ASSERT(serial<registered_functions().size());
-
- os << std::string(indent,' ') << class_name() << " "
- << registered_functions()[serial].name
- << ", hash=" << hashvalue
- << " (0x" << std::hex << hashvalue << std::dec << ")"
- << ", flags=" << flags
- << ", nops=" << nops() << std::endl;
- for (unsigned i=0; i<nops(); ++i) {
- seq[i].printtree(os,indent+delta_indent);
- }
- os << std::string(indent+delta_indent,' ') << "=====" << std::endl;
-}
-
-void function::printcsrc(std::ostream & os, unsigned type, unsigned upper_precedence) const
-{
- debugmsg("function print csrc",LOGLEVEL_PRINT);
+ // Method not found, try parent print_context class
+ const print_context_class_info *parent_pc_info = pc_info->get_parent();
+ if (parent_pc_info) {
+ pc_info = parent_pc_info;
+ goto next_context;
+ }
- GINAC_ASSERT(serial<registered_functions().size());
+ // Method still not found, use default output
+ if (is_a<print_tree>(c)) {
+
+ c.s << std::string(level, ' ') << class_name() << " "
+ << opt.name << " @" << this
+ << std::hex << ", hash=0x" << hashvalue << ", flags=0x" << flags << std::dec
+ << ", nops=" << nops()
+ << std::endl;
+ unsigned delta_indent = static_cast<const print_tree &>(c).delta_indent;
+ for (size_t i=0; i<seq.size(); ++i)
+ seq[i].print(c, level + delta_indent);
+ c.s << std::string(level + delta_indent, ' ') << "=====" << std::endl;
+
+ } else if (is_a<print_csrc>(c)) {
+
+ // Print function name in lowercase
+ std::string lname = opt.name;
+ size_t num = lname.size();
+ for (size_t i=0; i<num; i++)
+ lname[i] = tolower(lname[i]);
+ c.s << lname;
+ printseq(c, '(', ',', ')', exprseq::precedence(), function::precedence());
+
+ } else if (is_a<print_latex>(c)) {
+ c.s << opt.TeX_name;
+ printseq(c, '(', ',', ')', exprseq::precedence(), function::precedence());
+ } else {
+ c.s << opt.name;
+ printseq(c, '(', ',', ')', exprseq::precedence(), function::precedence());
+ }
- // Print function name in lowercase
- std::string lname;
- lname=registered_functions()[serial].name;
- for (unsigned i=0; i<lname.size(); i++)
- lname[i] = tolower(lname[i]);
- os << lname << "(";
+ } else {
- // Print arguments, separated by commas
- exvector::const_iterator it = seq.begin();
- exvector::const_iterator itend = seq.end();
- while (it != itend) {
- it->bp->printcsrc(os, type, 0);
- it++;
- if (it != itend)
- os << ",";
+ // Method found, call it
+ current_serial = serial;
+ if (opt.print_use_exvector_args)
+ ((print_funcp_exvector)pdt[id])(seq, c);
+ else switch (opt.nparams) {
+ // the following lines have been generated for max. ${maxargs} parameters
+${print_switch_statement}
+ // end of generated lines
+ default:
+ throw(std::logic_error("function::print(): invalid nparams"));
+ }
}
- os << ")";
}
ex function::expand(unsigned options) const
{
- return this->setflag(status_flags::expanded);
-}
-
-int function::degree(const ex & s) const
-{
- return is_equal(*s.bp) ? 1 : 0;
-}
-
-int function::ldegree(const ex & s) const
-{
- return is_equal(*s.bp) ? 1 : 0;
-}
-
-ex function::coeff(const ex & s, int n) const
-{
- if (is_equal(*s.bp))
- return n==1 ? _ex1() : _ex0();
+ // Only expand arguments when asked to do so
+ if (options & expand_options::expand_function_args)
+ return inherited::expand(options);
else
- return n==0 ? ex(*this) : _ex0();
+ return (options == 0) ? setflag(status_flags::expanded) : *this;
}
ex function::eval(int level) const
{
- GINAC_ASSERT(serial<registered_functions().size());
-
if (level>1) {
// first evaluate children, then we will end up here again
return function(serial,evalchildren(level));
}
- if (registered_functions()[serial].eval_f==0) {
+ GINAC_ASSERT(serial<registered_functions().size());
+ const function_options &opt = registered_functions()[serial];
+
+ // Canonicalize argument order according to the symmetry properties
+ if (seq.size() > 1 && !(opt.symtree.is_zero())) {
+ exvector v = seq;
+ GINAC_ASSERT(is_a<symmetry>(opt.symtree));
+ int sig = canonicalize(v.begin(), ex_to<symmetry>(opt.symtree));
+ if (sig != std::numeric_limits<int>::max()) {
+ // Something has changed while sorting arguments, more evaluations later
+ if (sig == 0)
+ return _ex0;
+ return ex(sig) * thiscontainer(v);
+ }
+ }
+
+ if (opt.eval_f==0) {
return this->hold();
}
- bool use_remember=registered_functions()[serial].use_remember;
+ bool use_remember = opt.use_remember;
ex eval_result;
if (use_remember && lookup_remember_table(eval_result)) {
return eval_result;
}
-
- switch (registered_functions()[serial].nparams) {
+ current_serial = serial;
+ if (opt.eval_use_exvector_args)
+ eval_result = ((eval_funcp_exvector)(opt.eval_f))(seq);
+ else
+ switch (opt.nparams) {
// the following lines have been generated for max. ${maxargs} parameters
${eval_switch_statement}
// end of generated lines
ex function::evalf(int level) const
{
GINAC_ASSERT(serial<registered_functions().size());
+ const function_options &opt = registered_functions()[serial];
+
+ // Evaluate children first
+ exvector eseq;
+ if (level == 1 || !(opt.evalf_params_first))
+ eseq = seq;
+ else if (level == -max_recursion_level)
+ throw(std::runtime_error("max recursion level reached"));
+ else {
+ eseq.reserve(seq.size());
+ --level;
+ exvector::const_iterator it = seq.begin(), itend = seq.end();
+ while (it != itend) {
+ eseq.push_back(it->evalf(level));
+ ++it;
+ }
+ }
- exvector eseq=evalfchildren(level);
-
- if (registered_functions()[serial].evalf_f==0) {
+ if (opt.evalf_f==0) {
return function(serial,eseq).hold();
}
- switch (registered_functions()[serial].nparams) {
+ current_serial = serial;
+ if (opt.evalf_use_exvector_args)
+ return ((evalf_funcp_exvector)(opt.evalf_f))(seq);
+ switch (opt.nparams) {
// the following lines have been generated for max. ${maxargs} parameters
${evalf_switch_statement}
// end of generated lines
throw(std::logic_error("function::evalf(): invalid nparams"));
}
-unsigned function::calchash(void) const
+/**
+ * This method is defined to be in line with behaviour of function::return_type()
+ */
+ex function::eval_ncmul(const exvector & v) const
{
- unsigned v = golden_ratio_hash(golden_ratio_hash(tinfo()) ^ serial);
- for (unsigned i=0; i<nops(); i++) {
- v = rotate_left_31(v);
+ // If this function is called then the list of arguments is non-empty
+ // and the first argument is non-commutative, see function::return_type()
+ return seq.begin()->eval_ncmul(v);
+}
+
+unsigned function::calchash() const
+{
+ unsigned v = golden_ratio_hash(make_hash_seed(typeid(*this)) ^ serial);
+ for (size_t i=0; i<nops(); i++) {
+ v = rotate_left(v);
v ^= this->op(i).gethash();
}
- v &= 0x7FFFFFFFU;
+
if (flags & status_flags::evaluated) {
setflag(status_flags::hash_calculated);
hashvalue = v;
return v;
}
-ex function::thisexprseq(const exvector & v) const
+ex function::thiscontainer(const exvector & v) const
{
- return function(serial,v);
+ return function(serial, v);
}
-ex function::thisexprseq(exvector * vp) const
+ex function::thiscontainer(std::auto_ptr<exvector> vp) const
{
- return function(serial,vp);
+ return function(serial, vp);
}
/** Implementation of ex::series for functions.
ex function::series(const relational & r, int order, unsigned options) const
{
GINAC_ASSERT(serial<registered_functions().size());
+ const function_options &opt = registered_functions()[serial];
- if (registered_functions()[serial].series_f==0) {
+ if (opt.series_f==0) {
return basic::series(r, order);
}
ex res;
- switch (registered_functions()[serial].nparams) {
+ current_serial = serial;
+ if (opt.series_use_exvector_args) {
+ try {
+ res = ((series_funcp_exvector)(opt.series_f))(seq, r, order, options);
+ } catch (do_taylor) {
+ res = basic::series(r, order, options);
+ }
+ return res;
+ }
+ switch (opt.nparams) {
// the following lines have been generated for max. ${maxargs} parameters
${series_switch_statement}
// end of generated lines
throw(std::logic_error("function::series(): invalid nparams"));
}
-// protected
+/** Implementation of ex::conjugate for functions. */
+ex function::conjugate() const
+{
+ GINAC_ASSERT(serial<registered_functions().size());
+ const function_options & opt = registered_functions()[serial];
+
+ if (opt.conjugate_f==0) {
+ return exprseq::conjugate();
+ }
+
+ if (opt.conjugate_use_exvector_args) {
+ return ((conjugate_funcp_exvector)(opt.conjugate_f))(seq);
+ }
+
+ switch (opt.nparams) {
+ // the following lines have been generated for max. ${maxargs} parameters
+${conjugate_switch_statement}
+ // end of generated lines
+ }
+ throw(std::logic_error("function::conjugate(): invalid nparams"));
+}
+
+/** Implementation of ex::real_part for functions. */
+ex function::real_part() const
+{
+ GINAC_ASSERT(serial<registered_functions().size());
+ const function_options & opt = registered_functions()[serial];
+
+ if (opt.real_part_f==0)
+ return basic::real_part();
+ if (opt.real_part_use_exvector_args)
+ return ((real_part_funcp_exvector)(opt.real_part_f))(seq);
+
+ switch (opt.nparams) {
+ // the following lines have been generated for max. ${maxargs} parameters
+${real_part_switch_statement}
+ // end of generated lines
+ }
+ throw(std::logic_error("function::real_part(): invalid nparams"));
+}
+
+/** Implementation of ex::imag_part for functions. */
+ex function::imag_part() const
+{
+ GINAC_ASSERT(serial<registered_functions().size());
+ const function_options & opt = registered_functions()[serial];
+
+ if (opt.imag_part_f==0)
+ return basic::imag_part();
+
+ if (opt.imag_part_use_exvector_args)
+ return ((imag_part_funcp_exvector)(opt.imag_part_f))(seq);
+
+ switch (opt.nparams) {
+ // the following lines have been generated for max. ${maxargs} parameters
+${imag_part_switch_statement}
+ // end of generated lines
+ }
+ throw(std::logic_error("function::imag_part(): invalid nparams"));
+}
+
+// protected
/** Implementation of ex::diff() for functions. It applies the chain rule,
* except for the Order term function.
ex function::derivative(const symbol & s) const
{
ex result;
-
- if (serial == function_index_Order) {
+
+ if (serial == Order_SERIAL::serial) {
// Order Term function only differentiates the argument
return Order(seq[0].diff(s));
- } else if (serial == function_index_Derivative) {
- // Inert derivative performs chain rule on the first argument only, and
- // adds differentiation parameter to list (second argument)
- GINAC_ASSERT(is_ex_exactly_of_type(seq[0], function));
- GINAC_ASSERT(is_ex_exactly_of_type(seq[1], function));
- ex fcn = seq[0];
- ex arg_diff;
- for (unsigned i=0; i!=fcn.nops(); i++) {
- arg_diff = fcn.op(i).diff(s);
- if (!arg_diff.is_zero()) {
- lst new_lst = ex_to_lst(seq[1]);
- new_lst.append(i);
- result += arg_diff * Derivative(fcn, new_lst);
- }
- }
} else {
// Chain rule
ex arg_diff;
- for (unsigned i=0; i!=seq.size(); i++) {
+ size_t num = seq.size();
+ for (size_t i=0; i<num; i++) {
arg_diff = seq[i].diff(s);
// We apply the chain rule only when it makes sense. This is not
// just for performance reasons but also to allow functions to
int function::compare_same_type(const basic & other) const
{
- GINAC_ASSERT(is_of_type(other, function));
- const function & o=static_cast<function &>(const_cast<basic &>(other));
+ GINAC_ASSERT(is_a<function>(other));
+ const function & o = static_cast<const function &>(other);
- if (serial!=o.serial) {
+ if (serial != o.serial)
return serial < o.serial ? -1 : 1;
- }
- return exprseq::compare_same_type(o);
+ else
+ return exprseq::compare_same_type(o);
}
bool function::is_equal_same_type(const basic & other) const
{
- GINAC_ASSERT(is_of_type(other, function));
- const function & o=static_cast<function &>(const_cast<basic &>(other));
+ GINAC_ASSERT(is_a<function>(other));
+ const function & o = static_cast<const function &>(other);
- if (serial!=o.serial) return false;
- return exprseq::is_equal_same_type(o);
+ if (serial != o.serial)
+ return false;
+ else
+ return exprseq::is_equal_same_type(o);
}
-unsigned function::return_type(void) const
+bool function::match_same_type(const basic & other) const
{
- if (seq.size()==0) {
- return return_types::commutative;
+ GINAC_ASSERT(is_a<function>(other));
+ const function & o = static_cast<const function &>(other);
+
+ return serial == o.serial;
+}
+
+unsigned function::return_type() const
+{
+ GINAC_ASSERT(serial<registered_functions().size());
+ const function_options &opt = registered_functions()[serial];
+
+ if (opt.use_return_type) {
+ // Return type was explicitly specified
+ return opt.return_type;
+ } else {
+ // Default behavior is to use the return type of the first
+ // argument. Thus, exp() of a matrix behaves like a matrix, etc.
+ if (seq.empty())
+ return return_types::commutative;
+ else
+ return seq.begin()->return_type();
}
- return (*seq.begin()).return_type();
}
-
-unsigned function::return_type_tinfo(void) const
+
+return_type_t function::return_type_tinfo() const
{
- if (seq.size()==0) {
- return tinfo_key;
+ GINAC_ASSERT(serial<registered_functions().size());
+ const function_options &opt = registered_functions()[serial];
+
+ if (opt.use_return_type) {
+ // Return type was explicitly specified
+ return opt.return_type_tinfo;
+ } else {
+ // Default behavior is to use the return type of the first
+ // argument. Thus, exp() of a matrix behaves like a matrix, etc.
+ if (seq.empty())
+ return make_return_type_t<function>();
+ else
+ return seq.begin()->return_type_tinfo();
}
- return (*seq.begin()).return_type_tinfo();
}
//////////
ex function::pderivative(unsigned diff_param) const // partial differentiation
{
GINAC_ASSERT(serial<registered_functions().size());
+ const function_options &opt = registered_functions()[serial];
- if (registered_functions()[serial].derivative_f==0) {
- return Derivative(*this, lst(ex(diff_param)));
- }
- switch (registered_functions()[serial].nparams) {
+ // No derivative defined? Then return abstract derivative object
+ if (opt.derivative_f == NULL)
+ return fderivative(serial, diff_param, seq);
+
+ current_serial = serial;
+ if (opt.derivative_use_exvector_args)
+ return ((derivative_funcp_exvector)(opt.derivative_f))(seq, diff_param);
+ switch (opt.nparams) {
// the following lines have been generated for max. ${maxargs} parameters
${diff_switch_statement}
// end of generated lines
- }
+ }
throw(std::logic_error("function::pderivative(): no diff function defined"));
}
-std::vector<function_options> & function::registered_functions(void)
+ex function::power(const ex & power_param) const // power of function
+{
+ GINAC_ASSERT(serial<registered_functions().size());
+ const function_options &opt = registered_functions()[serial];
+
+ // No derivative defined? Then return abstract derivative object
+ if (opt.power_f == NULL)
+ return (new power::power(*this, power_param))->setflag(status_flags::dynallocated |
+ status_flags::evaluated);
+
+ current_serial = serial;
+ if (opt.power_use_exvector_args)
+ return ((power_funcp_exvector)(opt.power_f))(seq, power_param);
+ switch (opt.nparams) {
+ // the following lines have been generated for max. ${maxargs} parameters
+${power_switch_statement}
+ // end of generated lines
+ }
+ throw(std::logic_error("function::power(): no power function defined"));
+}
+
+std::vector<function_options> & function::registered_functions()
{
- static std::vector<function_options> * rf = new std::vector<function_options>;
- return *rf;
+ static std::vector<function_options> rf = std::vector<function_options>();
+ return rf;
}
bool function::lookup_remember_table(ex & result) const
{
- return remember_table::remember_tables()[serial].lookup_entry(*this,result);
+ return remember_table::remember_tables()[this->serial].lookup_entry(*this,result);
}
void function::store_remember_table(ex const & result) const
{
- remember_table::remember_tables()[serial].add_entry(*this,result);
+ remember_table::remember_tables()[this->serial].add_entry(*this,result);
}
// public
unsigned function::register_new(function_options const & opt)
{
- unsigned same_name=0;
- for (unsigned i=0; i<registered_functions().size(); ++i) {
+ size_t same_name = 0;
+ for (size_t i=0; i<registered_functions().size(); ++i) {
if (registered_functions()[i].name==opt.name) {
- same_name++;
+ ++same_name;
}
}
if (same_name>=opt.functions_with_same_name) {
// usually executed before main(), so the exception could not
// caught anyhow
std::cerr << "WARNING: function name " << opt.name
- << " already in use!" << std::endl;
+ << " already in use!" << std::endl;
}
registered_functions().push_back(opt);
if (opt.use_remember) {
remember_table::remember_tables().
push_back(remember_table(opt.remember_size,
- opt.remember_assoc_size,
- opt.remember_strategy));
+ opt.remember_assoc_size,
+ opt.remember_strategy));
} else {
remember_table::remember_tables().push_back(remember_table());
}
while (i != end) {
if (i->get_name() == name && i->get_nparams() == nparams)
return serial;
- i++;
- serial++;
+ ++i;
+ ++serial;
}
throw (std::runtime_error("no function '" + name + "' with " + ToString(nparams) + " parameters defined"));
}
-//////////
-// static member variables
-//////////
-
-// none
-
-//////////
-// global constants
-//////////
-
-const function some_function;
-const std::type_info & typeid_function=typeid(some_function);
+/** Return the print name of the function. */
+std::string function::get_name() const
+{
+ GINAC_ASSERT(serial<registered_functions().size());
+ return registered_functions()[serial].name;
+}
} // namespace GiNaC
git://www.ginac.de / ginac.git / blobdiff