reorganizing sources...

lib/CompiledFunction.cpp

@@ -0,0 +1,81 @@
+/*
+ * CompiledFunction.cpp, part of LatAnalyze 3
+ *
+ * Copyright (C) 2013 - 2014 Antonin Portelli
+ *
+ * LatAnalyze 3 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * LatAnalyze 3 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 LatAnalyze 3.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <LatAnalyze/CompiledFunction.hpp>
+#include <LatAnalyze/Math.hpp>
+#include <LatAnalyze/includes.hpp>
+
+using namespace std;
+using namespace Latan;
+
+/******************************************************************************
+ *                   Compiled double function implementation                  *
+ ******************************************************************************/
+// constructors ////////////////////////////////////////////////////////////////
+CompiledDoubleFunction::CompiledDoubleFunction(const unsigned nArg)
+: DoubleFunction(nArg, nullptr)
+{}
+
+CompiledDoubleFunction::CompiledDoubleFunction(const unsigned nArg,
+                                               const string &code)
+: CompiledDoubleFunction(nArg)
+{
+    setCode(code);
+}
+
+// access //////////////////////////////////////////////////////////////////////
+void CompiledDoubleFunction::setCode(const string &code)
+{
+    interpreter_.reset(new MathInterpreter(code));
+    context_.reset(new RunContext);
+    StdMath::addStdMathFunc(context_->fTable);
+}
+
+// function call ///////////////////////////////////////////////////////////////
+double CompiledDoubleFunction::operator()(const double *arg) const
+{
+    double result;
+    
+    for (Index i = 0; i < getNArg(); ++i)
+    {
+        context_->vTable["x_" + strFrom(i)] = arg[i];
+    }
+    (*interpreter_)(*context_);
+    if (!context_->dStack.empty())
+    {
+        result = context_->dStack.top();
+        context_->dStack.pop();
+    }
+    else
+    {
+        result = 0.0;
+        LATAN_ERROR(Program, "program execution resulted in an empty stack");
+    }
+    
+    return result;
+}
+
+// IO //////////////////////////////////////////////////////////////////////////
+ostream & Latan::operator<<(ostream &out, CompiledDoubleFunction &f)
+{
+    f.interpreter_->compile();
+    out << *(f.interpreter_);
+    
+    return out;
+}