Discussion :

[sphere369]

Bonjour, je suis entrain de debuger un programme qui me donne un message d'erreur que je n'arrive pas a résoudre.

Ci-dessous le message d'erreur recu et les codes concerner :

1>Édition des liens en cours...
1>testBSPDE1.obj : error LNK2005: "double (__cdecl* BlackScholesOneFactorIBVP::sigma)(double,double)" (?sigma@BlackScholesOneFactorIBVP@@3P6ANNN@ZA) déjà défini(e) dans FDMDirector.obj
1>testBSPDE1.obj : error LNK2005: "double (__cdecl* BlackScholesOneFactorIBVP::f)(double,double)" (?f@BlackScholesOneFactorIBVP@@3P6ANNN@ZA) déjà défini(e) dans FDMDirector.obj
1>testBSPDE1.obj : error LNK2005: "double (__cdecl* BlackScholesOneFactorIBVP::mu)(double,double)" (?mu@BlackScholesOneFactorIBVP@@3P6ANNN@ZA) déjà défini(e) dans FDMDirector.obj
1>testBSPDE1.obj : error LNK2005: "double (__cdecl* BlackScholesOneFactorIBVP::IC)(double)" (?IC@BlackScholesOneFactorIBVP@@3P6ANN@ZA) déjà défini(e) dans FDMDirector.obj
1>testBSPDE1.obj : error LNK2005: "double (__cdecl* BlackScholesOneFactorIBVP::BCR)(double)" (?BCR@BlackScholesOneFactorIBVP@@3P6ANN@ZA) déjà défini(e) dans FDMDirector.obj
1>testBSPDE1.obj : error LNK2005: "double (__cdecl* BlackScholesOneFactorIBVP::BCL)(double)" (?BCL@BlackScholesOneFactorIBVP@@3P6ANN@ZA) déjà défini(e) dans FDMDirector.obj
1>testBSPDE1.obj : error LNK2005: "double (__cdecl* BlackScholesOneFactorIBVP::b)(double,double)" (?b@BlackScholesOneFactorIBVP@@3P6ANNN@ZA) déjà défini(e) dans FDMDirector.obj
1>C:\sphere369\DistanceLearning\Code\Part1_Cpp_Essential_Skills\Debug\Chap10_BSPDE1.exe : fatal error LNK1169: un ou plusieurs symboles définis à différentes reprises ont été rencontrés
1>Le journal de génération a été enregistré à l'emplacement "file://c:\sphere369\DistanceLearning\Code\Part1_Cpp_Essential_Skills\Chap10_BSPDE1\Debug\BuildLog.htm"
1>Chap10_BSPDE1 - 8 erreur(s), 2 avertissement(s)

testBSDE1.cpp :

Code :

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#include "fdmdirector.cpp"
#include "arraymechanisms.cpp"
 
#include <iostream>
#include <string>
using namespace std;
 
#include "ExcelDriver.hpp"
 
void printOneExcel(Vector<double, long> & x,						
					Vector<double, long>& functionResult,
					string& title)
{ 
	// N.B. Excel has a limit of 8 charts; after that you get a run-time error
 
	cout << "Starting Excel\n";
 
	ExcelDriver & excel = ExcelDriver::Instance();
 
	excel.MakeVisible(true);		// Default is INVISIBLE!
 
	excel.CreateChart(x, functionResult, title, "X", "Y");
 
 
}
 
// Excel output as well
void printInExcel(const Vector<double, long>& x,							// X array
					const list<string>& labels,							// Names of each vector
					const list<Vector<double, long> >& functionResult)	// The list of Y values
{ // Print a list of Vectors in Excel. Each vector is the output of
  // a finite difference scheme for a scalar IVP
 
	cout << "Starting Excel\n";
 
	ExcelDriver & excel = ExcelDriver::Instance();
 
	excel.MakeVisible(true);		// Default is INVISIBLE!
 
 
	// Don't make the string names too long!!
	excel.CreateChart(x, labels, functionResult, string("FDM Scalar IVP"),
						string("Time Axis"), string ("Value"));
 
 
}
 
 
 
double mySigma (double x, double t)
{
 
	double sigmaS = 0.30 * 0.30;
 
	return 0.5 * sigmaS * x * x;
}
 
double myMu (double x, double t)
{
	double r = 0.06;
	double D = 0.00;
 
	return (r - D) * x;
}
 
double myB (double x, double t)
{
	double r = 0.06;
 
	return  -r;
}
 
double myF (double x, double t)
{
	return 0.0;
}
 
double myBCL (double t)
{
 //return 0.0; // C
 
	double K = 10;
	double r = 0.06;
	double T = 1.0;
	return K * ::exp(-r * (T - t));
}
 
double myBCR (double t)
{
	double Smax = 100;
//	return Smax;
 
 
	return 0.0; // P
}
 
double myIC (double x)
{
	double K = 10;
 
	if (x < K)
		return -(x - K);
 
	return 0.0;
 
}
 
 
int main()
{
	using namespace BlackScholesOneFactorIBVP;
 
	// Assignment of functions
	sigma = mySigma;
	mu = myMu;
	b = myB;
	f = myF;
	BCL = myBCL;
	BCR = myBCR;
	IC = myIC;
 
	double T = 1.0;	int J= 200; int N = 4000-1;
	double Smax = 100.0;
	FDMDirector fdir(Smax, T, J, N);
	fdir.Start();
 
L1:
	fdir.doit();
	//	print(fdir.current());
 
	if (fdir.isDone() == false)
		goto L1;
 
	Vector<double, long> xresult(J+1, 1);
	xresult[xresult.MinIndex()] = 0.0;
	double h = Smax / (double) (J);
 
	for (long j = xresult.MinIndex()+1; j <= xresult.MaxIndex(); j++)
	{
			xresult[j] = xresult[j-1] + h;
	}
 
	print (xresult);
	//print(fdir.current());
 
	printOneExcel(xresult, fdir.current(), string("Value"));
 
	return 0;
}

FDMDirector.cpp :

Code :

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#ifndef FDMDirector_CPP
#define FDMDirector_CPP
 
#include "mesher.cpp"
#include "fdm.cpp"
#include "arraymechanisms.cpp"
 
#include <iostream>
using namespace std;
 
class FDMDirector
{
 
private:
	FDMDirector ()
	{
 
 
	}
 
public:
 
	double T;
	double Xmax;
 
	double k;
	long J, N;
	double tprev, tnow;
	Mesher m;
	Vector<double, long> xarr; // Useful work array
	FDM fdm;
 
	FDMDirector (double XM, double TM, long JSteps, long NSteps)
	{
 
		T = TM;
		J = JSteps;
		N = NSteps;
		Xmax = XM;
		tprev = tnow = 0.0;
		fdm = FDM();
 
		m = Mesher(0.0, XM, T);
	}
 
 
	Vector<double, long> current()
	{
		return fdm.current();
	}
 
	void Start() // Calculate next level
	{
		// Steps 1, 2: Get stuff from Mesher
		k = m.timeStep(N);
		xarr = m.xarr(J);
 
		cout << "k, xarr\n";
		cout << k << endl;
 
		// Step 3: Update new mesh array in FDM scheme
		fdm.initIC(xarr);
 
	}
 
	void doit()
	{
		// Step 4, 5: Get new coefficient arrays + solve
 
		tnow = tprev + k;
		fdm.calculateCoefficients(xarr, tprev, tnow);
		fdm.solve(tnow);
		tprev += k;
	}
 
 
	bool isDone()
	{
		if (tnow < T)
		{
			return false;
		}
 
		cout << "done";
		return true;
	}
};
 
#endif