4 my ($seq_template,$n)=@_;
8 for ($N=1; $N<=$n; $N++) {
9 $res .= eval('"' . $seq_template . '"');
17 sub generate_from_to {
18 my ($template,$seq_template1,$seq_template2,$from,$to)=@_;
22 for ($N=$from; $N<=$to; $N++) {
23 $SEQ1=generate_seq($seq_template1,$N);
24 $SEQ2=generate_seq($seq_template2,$N);
25 $res .= eval('"' . $template . '"');
26 $SEQ1=''; # to avoid main::SEQ1 used only once warning
27 $SEQ2=''; # same as above
33 my ($template,$seq_template1,$seq_template2)=@_;
34 return generate_from_to($template,$seq_template1,$seq_template2,1,$maxargs);
37 $declare_function_macro = <<'END_OF_DECLARE_FUNCTION_1_AND_2P_MACRO';
38 #define DECLARE_FUNCTION_1P(NAME) \
39 extern const unsigned function_index_##NAME; \
40 inline GiNaC::function NAME(const GiNaC::ex & p1) { \
41 return GiNaC::function(function_index_##NAME, p1); \
43 #define DECLARE_FUNCTION_2P(NAME) \
44 extern const unsigned function_index_##NAME; \
45 inline GiNaC::function NAME(const GiNaC::ex & p1, const GiNaC::ex & p2) { \
46 return GiNaC::function(function_index_##NAME, p1, p2); \
49 END_OF_DECLARE_FUNCTION_1_AND_2P_MACRO
51 $declare_function_macro .= generate_from_to(
52 <<'END_OF_DECLARE_FUNCTION_MACRO','const GiNaC::ex & p${N}','p${N}',3,$maxargs);
53 #define DECLARE_FUNCTION_${N}P(NAME) \\
54 extern const unsigned function_index_##NAME; \\
55 inline GiNaC::function NAME(${SEQ1}) { \\
56 return GiNaC::function(function_index_##NAME, ${SEQ2}); \\
59 END_OF_DECLARE_FUNCTION_MACRO
61 $typedef_eval_funcp=generate(
62 'typedef ex (* eval_funcp_${N})(${SEQ1});'."\n",
65 $typedef_evalf_funcp=generate(
66 'typedef ex (* evalf_funcp_${N})(${SEQ1});'."\n",
69 $typedef_derivative_funcp=generate(
70 'typedef ex (* derivative_funcp_${N})(${SEQ1}, unsigned);'."\n",
73 $typedef_series_funcp=generate(
74 'typedef ex (* series_funcp_${N})(${SEQ1}, const relational &, int, unsigned);'."\n",
77 $eval_func_interface=generate(' function_options & eval_func(eval_funcp_${N} e);'."\n",'','');
79 $evalf_func_interface=generate(' function_options & evalf_func(evalf_funcp_${N} ef);'."\n",'','');
81 $derivative_func_interface=generate(' function_options & derivative_func(derivative_funcp_${N} d);'."\n",'','');
83 $series_func_interface=generate(' function_options & series_func(series_funcp_${N} s);'."\n",'','');
85 $constructors_interface=generate(
86 ' function(unsigned ser, ${SEQ1});'."\n",
87 'const ex & param${N}','');
89 $constructors_implementation=generate(
90 <<'END_OF_CONSTRUCTORS_IMPLEMENTATION','const ex & param${N}','param${N}');
91 function::function(unsigned ser, ${SEQ1})
92 : exprseq(${SEQ2}), serial(ser)
94 debugmsg(\"function ctor from unsigned,${N}*ex\",LOGLEVEL_CONSTRUCT);
95 tinfo_key = TINFO_function;
97 END_OF_CONSTRUCTORS_IMPLEMENTATION
99 $eval_switch_statement=generate(
100 <<'END_OF_EVAL_SWITCH_STATEMENT','seq[${N}-1]','');
102 eval_result=((eval_funcp_${N})(registered_functions()[serial].eval_f))(${SEQ1});
104 END_OF_EVAL_SWITCH_STATEMENT
106 $evalf_switch_statement=generate(
107 <<'END_OF_EVALF_SWITCH_STATEMENT','eseq[${N}-1]','');
109 return ((evalf_funcp_${N})(registered_functions()[serial].evalf_f))(${SEQ1});
110 END_OF_EVALF_SWITCH_STATEMENT
112 $diff_switch_statement=generate(
113 <<'END_OF_DIFF_SWITCH_STATEMENT','seq[${N}-1]','');
115 return ((derivative_funcp_${N})(registered_functions()[serial].derivative_f))(${SEQ1},diff_param);
116 END_OF_DIFF_SWITCH_STATEMENT
118 $series_switch_statement=generate(
119 <<'END_OF_SERIES_SWITCH_STATEMENT','seq[${N}-1]','');
122 res = ((series_funcp_${N})(registered_functions()[serial].series_f))(${SEQ1},r,order,options);
123 } catch (do_taylor) {
124 res = basic::series(r, order, options);
127 END_OF_SERIES_SWITCH_STATEMENT
129 $eval_func_implementation=generate(
130 <<'END_OF_EVAL_FUNC_IMPLEMENTATION','','');
131 function_options & function_options::eval_func(eval_funcp_${N} e)
133 test_and_set_nparams(${N});
134 eval_f=eval_funcp(e);
137 END_OF_EVAL_FUNC_IMPLEMENTATION
139 $evalf_func_implementation=generate(
140 <<'END_OF_EVALF_FUNC_IMPLEMENTATION','','');
141 function_options & function_options::evalf_func(evalf_funcp_${N} ef)
143 test_and_set_nparams(${N});
144 evalf_f=evalf_funcp(ef);
147 END_OF_EVALF_FUNC_IMPLEMENTATION
149 $derivative_func_implementation=generate(
150 <<'END_OF_DERIVATIVE_FUNC_IMPLEMENTATION','','');
151 function_options & function_options::derivative_func(derivative_funcp_${N} d)
153 test_and_set_nparams(${N});
154 derivative_f=derivative_funcp(d);
157 END_OF_DERIVATIVE_FUNC_IMPLEMENTATION
159 $series_func_implementation=generate(
160 <<'END_OF_SERIES_FUNC_IMPLEMENTATION','','');
161 function_options & function_options::series_func(series_funcp_${N} s)
163 test_and_set_nparams(${N});
164 series_f=series_funcp(s);
167 END_OF_SERIES_FUNC_IMPLEMENTATION
169 $interface=<<END_OF_INTERFACE;
170 /** \@file function.h
172 * Interface to abstract class function (new function concept). */
175 * This file was generated automatically by function.pl.
176 * Please do not modify it directly, edit the perl script instead!
177 * function.pl options: \$maxargs=${maxargs}
179 * GiNaC Copyright (C) 1999-2001 Johannes Gutenberg University Mainz, Germany
181 * This program is free software; you can redistribute it and/or modify
182 * it under the terms of the GNU General Public License as published by
183 * the Free Software Foundation; either version 2 of the License, or
184 * (at your option) any later version.
186 * This program is distributed in the hope that it will be useful,
187 * but WITHOUT ANY WARRANTY; without even the implied warranty of
188 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
189 * GNU General Public License for more details.
191 * You should have received a copy of the GNU General Public License
192 * along with this program; if not, write to the Free Software
193 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
196 #ifndef __GINAC_FUNCTION_H__
197 #define __GINAC_FUNCTION_H__
202 // CINT needs <algorithm> to work properly with <vector>
207 // the following lines have been generated for max. ${maxargs} parameters
208 $declare_function_macro
209 // end of generated lines
211 #define REGISTER_FUNCTION(NAME,OPT) \\
212 const unsigned function_index_##NAME= \\
213 GiNaC::function::register_new(GiNaC::function_options(#NAME).OPT);
215 #define REGISTER_FUNCTION_OLD(NAME,E,EF,D,S) \\
216 const unsigned function_index_##NAME= \\
217 GiNaC::function::register_new(GiNaC::function_options(#NAME). \\
220 derivative_func(D). \\
223 #define BEGIN_TYPECHECK \\
224 bool automatic_typecheck=true;
226 #define TYPECHECK(VAR,TYPE) \\
227 if (!is_ex_exactly_of_type(VAR,TYPE)) { \\
228 automatic_typecheck=false; \\
231 #define TYPECHECK_INTEGER(VAR) \\
232 if (!(VAR).info(GiNaC::info_flags::integer)) { \\
233 automatic_typecheck=false; \\
236 #define END_TYPECHECK(RV) \\
238 if (!automatic_typecheck) { \\
246 typedef ex (* eval_funcp)();
247 typedef ex (* evalf_funcp)();
248 typedef ex (* derivative_funcp)();
249 typedef ex (* series_funcp)();
251 // the following lines have been generated for max. ${maxargs} parameters
254 $typedef_derivative_funcp
255 $typedef_series_funcp
256 // end of generated lines
258 class function_options
260 friend class function;
263 function_options(std::string const & n, std::string const & tn=std::string());
265 void initialize(void);
266 function_options & set_name(std::string const & n, std::string const & tn=std::string());
267 // the following lines have been generated for max. ${maxargs} parameters
269 $evalf_func_interface
270 $derivative_func_interface
271 $series_func_interface
272 // end of generated lines
273 function_options & set_return_type(unsigned rt, unsigned rtt=0);
274 function_options & do_not_evalf_params(void);
275 function_options & remember(unsigned size, unsigned assoc_size=0,
276 unsigned strategy=remember_strategies::delete_never);
277 function_options & overloaded(unsigned o);
278 void test_and_set_nparams(unsigned n);
279 std::string get_name(void) const { return name; }
280 unsigned get_nparams(void) const { return nparams; }
284 std::string TeX_name;
290 derivative_funcp derivative_f;
291 series_funcp series_f;
293 bool evalf_params_first;
295 bool use_return_type;
296 unsigned return_type;
297 unsigned return_type_tinfo;
300 unsigned remember_size;
301 unsigned remember_assoc_size;
302 unsigned remember_strategy;
304 unsigned functions_with_same_name;
307 /** The class function is used to implement builtin functions like sin, cos...
308 and user defined functions */
309 class function : public exprseq
311 GINAC_DECLARE_REGISTERED_CLASS(function, exprseq)
313 // CINT has a linking problem
315 friend void ginsh_get_ginac_functions(void);
316 #endif // def __MAKECINT__
318 friend class remember_table_entry;
319 // friend class remember_table_list;
320 // friend class remember_table;
326 function(unsigned ser);
327 // the following lines have been generated for max. ${maxargs} parameters
328 $constructors_interface
329 // end of generated lines
330 function(unsigned ser, const exprseq & es);
331 function(unsigned ser, const exvector & v, bool discardable=0);
332 function(unsigned ser, exvector * vp); // vp will be deleted
334 // functions overriding virtual functions from bases classes
336 void printraw(std::ostream & os) const;
337 void print(std::ostream & os, unsigned upper_precedence=0) const;
338 void printtree(std::ostream & os, unsigned indent) const;
339 void printcsrc(std::ostream & os, unsigned type, unsigned upper_precedence=0) const;
340 int degree(const ex & s) const;
341 int ldegree(const ex & s) const;
342 ex coeff(const ex & s, int n = 1) const;
343 ex expand(unsigned options=0) const;
344 ex eval(int level=0) const;
345 ex evalf(int level=0) const;
346 unsigned calchash(void) const;
347 ex series(const relational & r, int order, unsigned options = 0) const;
348 ex thisexprseq(const exvector & v) const;
349 ex thisexprseq(exvector * vp) const;
351 ex derivative(const symbol & s) const;
352 bool is_equal_same_type(const basic & other) const;
353 unsigned return_type(void) const;
354 unsigned return_type_tinfo(void) const;
356 // new virtual functions which can be overridden by derived classes
359 // non-virtual functions in this class
361 ex pderivative(unsigned diff_param) const; // partial differentiation
362 static std::vector<function_options> & registered_functions(void);
363 bool lookup_remember_table(ex & result) const;
364 void store_remember_table(ex const & result) const;
366 static unsigned register_new(function_options const & opt);
367 static unsigned find_function(const std::string &name, unsigned nparams);
368 unsigned getserial(void) const {return serial;}
376 // utility functions/macros
377 inline const function &ex_to_function(const ex &e)
379 return static_cast<const function &>(*e.bp);
382 #define is_ex_the_function(OBJ, FUNCNAME) \\
383 (is_ex_exactly_of_type(OBJ, function) && static_cast<GiNaC::function *>(OBJ.bp)->getserial() == function_index_##FUNCNAME)
387 extern const function some_function;
388 extern const std::type_info & typeid_function;
392 #endif // ndef __GINAC_FUNCTION_H__
396 $implementation=<<END_OF_IMPLEMENTATION;
397 /** \@file function.cpp
399 * Implementation of class function. */
402 * This file was generated automatically by function.pl.
403 * Please do not modify it directly, edit the perl script instead!
404 * function.pl options: \$maxargs=${maxargs}
406 * GiNaC Copyright (C) 1999-2001 Johannes Gutenberg University Mainz, Germany
408 * This program is free software; you can redistribute it and/or modify
409 * it under the terms of the GNU General Public License as published by
410 * the Free Software Foundation; either version 2 of the License, or
411 * (at your option) any later version.
413 * This program is distributed in the hope that it will be useful,
414 * but WITHOUT ANY WARRANTY; without even the implied warranty of
415 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
416 * GNU General Public License for more details.
418 * You should have received a copy of the GNU General Public License
419 * along with this program; if not, write to the Free Software
420 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
427 #include "function.h"
433 #include "debugmsg.h"
434 #include "remember.h"
439 // helper class function_options
442 function_options::function_options()
447 function_options::function_options(std::string const & n, std::string const & tn)
453 function_options::~function_options()
455 // nothing to clean up at the moment
458 void function_options::initialize(void)
460 set_name("unnamed_function","\\\\operatorname{unnamed}");
462 eval_f=evalf_f=derivative_f=series_f=0;
463 evalf_params_first=true;
464 use_return_type=false;
466 functions_with_same_name=1;
469 function_options & function_options::set_name(std::string const & n,
470 std::string const & tn)
473 if (tn==std::string()) {
474 TeX_name="\\\\operatorname{"+name+"}";
481 // the following lines have been generated for max. ${maxargs} parameters
482 $eval_func_implementation
483 $evalf_func_implementation
484 $derivative_func_implementation
485 $series_func_implementation
486 // end of generated lines
488 function_options & function_options::set_return_type(unsigned rt, unsigned rtt)
490 use_return_type=true;
492 return_type_tinfo=rtt;
496 function_options & function_options::do_not_evalf_params(void)
498 evalf_params_first=false;
502 function_options & function_options::remember(unsigned size,
508 remember_assoc_size=assoc_size;
509 remember_strategy=strategy;
513 function_options & function_options::overloaded(unsigned o)
515 functions_with_same_name=o;
519 void function_options::test_and_set_nparams(unsigned n)
523 } else if (nparams!=n) {
524 // we do not throw an exception here because this code is
525 // usually executed before main(), so the exception could not
527 std::cerr << "WARNING: number of parameters ("
528 << n << ") differs from number set before ("
529 << nparams << ")" << std::endl;
533 GINAC_IMPLEMENT_REGISTERED_CLASS(function, exprseq)
536 // default ctor, dtor, copy ctor assignment operator and helpers
541 function::function() : serial(0)
543 debugmsg("function default ctor",LOGLEVEL_CONSTRUCT);
544 tinfo_key = TINFO_function;
549 void function::copy(const function & other)
551 exprseq::copy(other);
555 void function::destroy(bool call_parent)
557 if (call_parent) exprseq::destroy(call_parent);
566 function::function(unsigned ser) : serial(ser)
568 debugmsg("function ctor from unsigned",LOGLEVEL_CONSTRUCT);
569 tinfo_key = TINFO_function;
572 // the following lines have been generated for max. ${maxargs} parameters
573 $constructors_implementation
574 // end of generated lines
576 function::function(unsigned ser, const exprseq & es) : exprseq(es), serial(ser)
578 debugmsg("function ctor from unsigned,exprseq",LOGLEVEL_CONSTRUCT);
579 tinfo_key = TINFO_function;
582 function::function(unsigned ser, const exvector & v, bool discardable)
583 : exprseq(v,discardable), serial(ser)
585 debugmsg("function ctor from string,exvector,bool",LOGLEVEL_CONSTRUCT);
586 tinfo_key = TINFO_function;
589 function::function(unsigned ser, exvector * vp)
590 : exprseq(vp), serial(ser)
592 debugmsg("function ctor from unsigned,exvector *",LOGLEVEL_CONSTRUCT);
593 tinfo_key = TINFO_function;
600 /** Construct object from archive_node. */
601 function::function(const archive_node &n, const lst &sym_lst) : inherited(n, sym_lst)
603 debugmsg("function ctor from archive_node", LOGLEVEL_CONSTRUCT);
605 // Find serial number by function name
607 if (n.find_string("name", s)) {
608 unsigned int ser = 0;
609 std::vector<function_options>::const_iterator i = registered_functions().begin(), iend = registered_functions().end();
617 throw (std::runtime_error("unknown function '" + s + "' in archive"));
619 throw (std::runtime_error("unnamed function in archive"));
622 /** Unarchive the object. */
623 ex function::unarchive(const archive_node &n, const lst &sym_lst)
625 return (new function(n, sym_lst))->setflag(status_flags::dynallocated);
628 /** Archive the object. */
629 void function::archive(archive_node &n) const
631 inherited::archive(n);
632 GINAC_ASSERT(serial < registered_functions().size());
633 n.add_string("name", registered_functions()[serial].name);
637 // functions overriding virtual functions from bases classes
642 void function::printraw(std::ostream & os) const
644 debugmsg("function printraw",LOGLEVEL_PRINT);
646 GINAC_ASSERT(serial<registered_functions().size());
648 os << class_name() << "(name=" << registered_functions()[serial].name;
649 for (exvector::const_iterator it=seq.begin(); it!=seq.end(); ++it) {
656 void function::print(std::ostream & os, unsigned upper_precedence) const
658 debugmsg("function print",LOGLEVEL_PRINT);
660 GINAC_ASSERT(serial<registered_functions().size());
662 os << registered_functions()[serial].name;
663 printseq(os,'(',',',')',exprseq::precedence,function::precedence);
666 void function::printtree(std::ostream & os, unsigned indent) const
668 debugmsg("function printtree",LOGLEVEL_PRINT);
670 GINAC_ASSERT(serial<registered_functions().size());
672 os << std::string(indent,' ') << class_name() << " "
673 << registered_functions()[serial].name
674 << ", hash=" << hashvalue
675 << " (0x" << std::hex << hashvalue << std::dec << ")"
676 << ", flags=" << flags
677 << ", nops=" << nops() << std::endl;
678 for (unsigned i=0; i<nops(); ++i) {
679 seq[i].printtree(os,indent+delta_indent);
681 os << std::string(indent+delta_indent,' ') << "=====" << std::endl;
684 void function::printcsrc(std::ostream & os, unsigned type, unsigned upper_precedence) const
686 debugmsg("function print csrc",LOGLEVEL_PRINT);
688 GINAC_ASSERT(serial<registered_functions().size());
690 // Print function name in lowercase
692 lname=registered_functions()[serial].name;
693 for (unsigned i=0; i<lname.size(); i++)
694 lname[i] = tolower(lname[i]);
697 // Print arguments, separated by commas
698 exvector::const_iterator it = seq.begin();
699 exvector::const_iterator itend = seq.end();
700 while (it != itend) {
701 it->bp->printcsrc(os, type, 0);
709 ex function::expand(unsigned options) const
711 return this->setflag(status_flags::expanded);
714 int function::degree(const ex & s) const
716 return is_equal(*s.bp) ? 1 : 0;
719 int function::ldegree(const ex & s) const
721 return is_equal(*s.bp) ? 1 : 0;
724 ex function::coeff(const ex & s, int n) const
727 return n==1 ? _ex1() : _ex0();
729 return n==0 ? ex(*this) : _ex0();
732 ex function::eval(int level) const
734 GINAC_ASSERT(serial<registered_functions().size());
737 // first evaluate children, then we will end up here again
738 return function(serial,evalchildren(level));
741 if (registered_functions()[serial].eval_f==0) {
745 bool use_remember=registered_functions()[serial].use_remember;
747 if (use_remember && lookup_remember_table(eval_result)) {
751 switch (registered_functions()[serial].nparams) {
752 // the following lines have been generated for max. ${maxargs} parameters
753 ${eval_switch_statement}
754 // end of generated lines
756 throw(std::logic_error("function::eval(): invalid nparams"));
759 store_remember_table(eval_result);
764 ex function::evalf(int level) const
766 GINAC_ASSERT(serial<registered_functions().size());
768 exvector eseq=evalfchildren(level);
770 if (registered_functions()[serial].evalf_f==0) {
771 return function(serial,eseq).hold();
773 switch (registered_functions()[serial].nparams) {
774 // the following lines have been generated for max. ${maxargs} parameters
775 ${evalf_switch_statement}
776 // end of generated lines
778 throw(std::logic_error("function::evalf(): invalid nparams"));
781 unsigned function::calchash(void) const
783 unsigned v = golden_ratio_hash(golden_ratio_hash(tinfo()) ^ serial);
784 for (unsigned i=0; i<nops(); i++) {
785 v = rotate_left_31(v);
786 v ^= this->op(i).gethash();
789 if (flags & status_flags::evaluated) {
790 setflag(status_flags::hash_calculated);
796 ex function::thisexprseq(const exvector & v) const
798 return function(serial,v);
801 ex function::thisexprseq(exvector * vp) const
803 return function(serial,vp);
806 /** Implementation of ex::series for functions.
807 * \@see ex::series */
808 ex function::series(const relational & r, int order, unsigned options) const
810 GINAC_ASSERT(serial<registered_functions().size());
812 if (registered_functions()[serial].series_f==0) {
813 return basic::series(r, order);
816 switch (registered_functions()[serial].nparams) {
817 // the following lines have been generated for max. ${maxargs} parameters
818 ${series_switch_statement}
819 // end of generated lines
821 throw(std::logic_error("function::series(): invalid nparams"));
827 /** Implementation of ex::diff() for functions. It applies the chain rule,
828 * except for the Order term function.
830 ex function::derivative(const symbol & s) const
834 if (serial == function_index_Order) {
835 // Order Term function only differentiates the argument
836 return Order(seq[0].diff(s));
837 } else if (serial == function_index_Derivative) {
838 // Inert derivative performs chain rule on the first argument only, and
839 // adds differentiation parameter to list (second argument)
840 GINAC_ASSERT(is_ex_exactly_of_type(seq[0], function));
841 GINAC_ASSERT(is_ex_exactly_of_type(seq[1], function));
844 for (unsigned i=0; i!=fcn.nops(); i++) {
845 arg_diff = fcn.op(i).diff(s);
846 if (!arg_diff.is_zero()) {
847 lst new_lst = ex_to_lst(seq[1]);
849 result += arg_diff * Derivative(fcn, new_lst);
855 for (unsigned i=0; i!=seq.size(); i++) {
856 arg_diff = seq[i].diff(s);
857 // We apply the chain rule only when it makes sense. This is not
858 // just for performance reasons but also to allow functions to
859 // throw when differentiated with respect to one of its arguments
860 // without running into trouble with our automatic full
862 if (!arg_diff.is_zero())
863 result += pderivative(i)*arg_diff;
869 int function::compare_same_type(const basic & other) const
871 GINAC_ASSERT(is_of_type(other, function));
872 const function & o=static_cast<function &>(const_cast<basic &>(other));
874 if (serial!=o.serial) {
875 return serial < o.serial ? -1 : 1;
877 return exprseq::compare_same_type(o);
880 bool function::is_equal_same_type(const basic & other) const
882 GINAC_ASSERT(is_of_type(other, function));
883 const function & o=static_cast<function &>(const_cast<basic &>(other));
885 if (serial!=o.serial) return false;
886 return exprseq::is_equal_same_type(o);
889 unsigned function::return_type(void) const
892 return return_types::commutative;
894 return (*seq.begin()).return_type();
897 unsigned function::return_type_tinfo(void) const
902 return (*seq.begin()).return_type_tinfo();
906 // new virtual functions which can be overridden by derived classes
912 // non-virtual functions in this class
917 ex function::pderivative(unsigned diff_param) const // partial differentiation
919 GINAC_ASSERT(serial<registered_functions().size());
921 if (registered_functions()[serial].derivative_f==0) {
922 return Derivative(*this, lst(ex(diff_param)));
924 switch (registered_functions()[serial].nparams) {
925 // the following lines have been generated for max. ${maxargs} parameters
926 ${diff_switch_statement}
927 // end of generated lines
929 throw(std::logic_error("function::pderivative(): no diff function defined"));
932 std::vector<function_options> & function::registered_functions(void)
934 static std::vector<function_options> * rf = new std::vector<function_options>;
938 bool function::lookup_remember_table(ex & result) const
940 return remember_table::remember_tables()[serial].lookup_entry(*this,result);
943 void function::store_remember_table(ex const & result) const
945 remember_table::remember_tables()[serial].add_entry(*this,result);
950 unsigned function::register_new(function_options const & opt)
952 unsigned same_name=0;
953 for (unsigned i=0; i<registered_functions().size(); ++i) {
954 if (registered_functions()[i].name==opt.name) {
958 if (same_name>=opt.functions_with_same_name) {
959 // we do not throw an exception here because this code is
960 // usually executed before main(), so the exception could not
962 std::cerr << "WARNING: function name " << opt.name
963 << " already in use!" << std::endl;
965 registered_functions().push_back(opt);
966 if (opt.use_remember) {
967 remember_table::remember_tables().
968 push_back(remember_table(opt.remember_size,
969 opt.remember_assoc_size,
970 opt.remember_strategy));
972 remember_table::remember_tables().push_back(remember_table());
974 return registered_functions().size()-1;
977 /** Find serial number of function by name and number of parameters.
978 * Throws exception if function was not found. */
979 unsigned function::find_function(const std::string &name, unsigned nparams)
981 std::vector<function_options>::const_iterator i = function::registered_functions().begin(), end = function::registered_functions().end();
984 if (i->get_name() == name && i->get_nparams() == nparams)
989 throw (std::runtime_error("no function '" + name + "' with " + ToString(nparams) + " parameters defined"));
993 // static member variables
1002 const function some_function;
1003 const std::type_info & typeid_function=typeid(some_function);
1005 } // namespace GiNaC
1007 END_OF_IMPLEMENTATION
1009 print "Creating interface file function.h...";
1010 open OUT,">function.h" or die "cannot open function.h";
1011 print OUT $interface;
1015 print "Creating implementation file function.cpp...";
1016 open OUT,">function.cpp" or die "cannot open function.cpp";
1017 print OUT $implementation;