* Please do not modify it directly, edit function.cppy instead!
* function.py options: maxargs=@maxargs@
*
- * 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
#include "power.h"
#include "archive.h"
#include "inifcns.h"
-#include "tostring.h"
#include "utils.h"
#include "hash_seed.h"
#include "remember.h"
set_name("unnamed_function", "\\\\mbox{unnamed}");
nparams = 0;
eval_f = evalf_f = real_part_f = imag_part_f = conjugate_f = expand_f
- = derivative_f = power_f = series_f = 0;
+ = derivative_f = expl_derivative_f = power_f = series_f = nullptr;
info_f = 0;
evalf_params_first = true;
use_return_type = false;
imag_part_use_exvector_args = false;
expand_use_exvector_args = false;
derivative_use_exvector_args = false;
+ expl_derivative_use_exvector_args = false;
power_use_exvector_args = false;
series_use_exvector_args = false;
print_use_exvector_args = false;
// the following lines have been generated for max. @maxargs@ parameters
+++ for N in range(1, maxargs + 1):
function::function(unsigned ser, @seq('const ex & param%(n)d', N)@)
- : exprseq(@seq('param%(n)d', N)@), serial(ser)
+ : exprseq{@seq('param%(n)d', N)@}, serial(ser)
{
}
---
clearflag(status_flags::evaluated);
}
-function::function(unsigned ser, const exvector & v, bool discardable)
- : exprseq(v,discardable), serial(ser)
+function::function(unsigned ser, const exvector & v)
+ : exprseq(v), serial(ser)
{
}
-function::function(unsigned ser, std::auto_ptr<exvector> vp)
- : exprseq(vp), serial(ser)
+function::function(unsigned ser, exvector && v)
+ : exprseq(std::move(v)), serial(ser)
{
}
std::string s;
if (n.find_string("name", s)) {
unsigned int ser = 0;
- std::vector<function_options>::const_iterator i = registered_functions().begin(), iend = registered_functions().end();
- while (i != iend) {
- if (s == i->name) {
+ for (auto & it : registered_functions()) {
+ if (s == it.name) {
serial = ser;
return;
}
- ++i; ++ser;
+ ++ser;
}
throw (std::runtime_error("unknown function '" + s + "' in archive"));
} else
next_context:
unsigned id = pc_info->options.get_id();
- if (id >= pdt.size() || pdt[id] == NULL) {
+ if (id >= pdt.size() || pdt[id] == nullptr) {
// Method not found, try parent print_context class
const print_context_class_info *parent_pc_info = pc_info->get_parent();
ex function::eval(int level) const
{
+ if ((level == 1) && (flags & status_flags::evaluated)) {
+ return *this;
+ }
+
if (level>1) {
// first evaluate children, then we will end up here again
return function(serial,evalchildren(level));
}
}
- if (opt.eval_f==0) {
+ if (opt.eval_f==nullptr) {
return this->hold();
}
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;
+ for (auto & it : seq) {
+ eseq.push_back(it.evalf(level));
}
}
return function(serial, v);
}
-ex function::thiscontainer(std::auto_ptr<exvector> vp) const
+ex function::thiscontainer(exvector && v) const
{
- return function(serial, vp);
+ return function(serial, std::move(v));
}
/** Implementation of ex::series for functions.
{
ex result;
- if (serial == Order_SERIAL::serial) {
- // Order Term function only differentiates the argument
- return Order(seq[0].diff(s));
- } else {
+ try {
+ // Explicit derivation
+ result = expl_derivative(s);
+ } catch (...) {
// Chain rule
ex arg_diff;
size_t num = seq.size();
GINAC_ASSERT(serial<registered_functions().size());
const function_options &opt = registered_functions()[serial];
- // No derivative defined? Then return abstract derivative object
- if (opt.derivative_f == NULL)
- return fderivative(serial, diff_param, seq);
+ if (opt.derivative_f) {
+ // Invoke the defined derivative function.
+ 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
++++ for N in range(1, maxargs + 1):
+ case @N@:
+ return ((derivative_funcp_@N@)(opt.derivative_f))(@seq('seq[%(n)d]', N, 0)@, diff_param);
+---
+ // end of generated lines
+ }
+ }
+ // No derivative defined? Fall back to abstract derivative object.
+ 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
+ex function::expl_derivative(const symbol & s) const // explicit differentiation
+{
+ GINAC_ASSERT(serial<registered_functions().size());
+ const function_options &opt = registered_functions()[serial];
+
+ if (opt.expl_derivative_f) {
+ // Invoke the defined explicit derivative function.
+ current_serial = serial;
+ if (opt.expl_derivative_use_exvector_args)
+ return ((expl_derivative_funcp_exvector)(opt.expl_derivative_f))(seq, s);
+ switch (opt.nparams) {
+ // the following lines have been generated for max. @maxargs@ parameters
+++ for N in range(1, maxargs + 1):
- case @N@:
- return ((derivative_funcp_@N@)(opt.derivative_f))(@seq('seq[%(n)d]', N, 0)@, diff_param);
+ case @N@:
+ return ((expl_derivative_funcp_@N@)(opt.expl_derivative_f))(@seq('seq[%(n)d]', N, 0)@, s);
---
- // end of generated lines
+ // end of generated lines
+ }
}
- throw(std::logic_error("function::pderivative(): no diff function defined"));
+ // There is no fallback for explicit deriviative.
+ throw(std::logic_error("function::expl_derivative(): explicit derivation is called, but no such function defined"));
}
ex function::power(const ex & power_param) const // power of function
GINAC_ASSERT(serial<registered_functions().size());
const function_options &opt = registered_functions()[serial];
- if (opt.power_f == NULL)
- return (new GiNaC::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
+ if (opt.power_f) {
+ // Invoke the defined power function.
+ 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
+++ for N in range(1, maxargs + 1):
- case @N@:
- return ((power_funcp_@N@)(opt.power_f))(@seq('seq[%(n)d]', N, 0)@, power_param);
+ case @N@:
+ return ((power_funcp_@N@)(opt.power_f))(@seq('seq[%(n)d]', N, 0)@, power_param);
---
- // end of generated lines
+ // end of generated lines
+ }
}
- throw(std::logic_error("function::power(): no power function defined"));
+ // No power function defined? Fall back to returning a power object.
+ return dynallocate<GiNaC::power>(*this, power_param).setflag(status_flags::evaluated);
}
ex function::expand(unsigned options) const
GINAC_ASSERT(serial<registered_functions().size());
const function_options &opt = registered_functions()[serial];
- // No expand defined? Then return the same function with expanded arguments (if required)
- if (opt.expand_f == NULL) {
- // Only expand arguments when asked to do so
- if (options & expand_options::expand_function_args)
- return inherited::expand(options);
- else
- return (options == 0) ? setflag(status_flags::expanded) : *this;
- }
-
- current_serial = serial;
- if (opt.expand_use_exvector_args)
- return ((expand_funcp_exvector)(opt.expand_f))(seq, options);
- switch (opt.nparams) {
- // the following lines have been generated for max. @maxargs@ parameters
+ if (opt.expand_f) {
+ // Invoke the defined expand function.
+ current_serial = serial;
+ if (opt.expand_use_exvector_args)
+ return ((expand_funcp_exvector)(opt.expand_f))(seq, options);
+ switch (opt.nparams) {
+ // the following lines have been generated for max. @maxargs@ parameters
+++ for N in range(1, maxargs + 1):
- case @N@:
- return ((expand_funcp_@N@)(opt.expand_f))(@seq('seq[%(n)d]', N, 0)@, options);
+ case @N@:
+ return ((expand_funcp_@N@)(opt.expand_f))(@seq('seq[%(n)d]', N, 0)@, options);
---
- // end of generated lines
+ // end of generated lines
+ }
}
- throw(std::logic_error("function::expand(): no expand of function defined"));
+ // No expand function defined? Return the same function with expanded arguments (if required)
+ if (options & expand_options::expand_function_args)
+ return inherited::expand(options);
+ else
+ return (options == 0) ? setflag(status_flags::expanded) : *this;
}
std::vector<function_options> & function::registered_functions()
* Throws exception if function was not found. */
unsigned function::find_function(const std::string &name, unsigned nparams)
{
- std::vector<function_options>::const_iterator i = function::registered_functions().begin(), end = function::registered_functions().end();
unsigned serial = 0;
- while (i != end) {
- if (i->get_name() == name && i->get_nparams() == nparams)
+ for (auto & it : function::registered_functions()) {
+ if (it.get_name() == name && it.get_nparams() == nparams)
return serial;
- ++i;
++serial;
}
- throw (std::runtime_error("no function '" + name + "' with " + ToString(nparams) + " parameters defined"));
+ throw (std::runtime_error("no function '" + name + "' with " + std::to_string(nparams) + " parameters defined"));
}
/** Return the print name of the function. */
git://www.ginac.de / ginac.git / blobdiff