Matrix not getting initialized

Lost User

Consider the following code "main.cpp"

#include
#include "../include/ESSolver.h"

int mu;
int lambda ;

int main(void)
{
mu = 5;
lambda = 10;

ESSolver es;

es.Init();

es.Optimize();
	
return 0;

}

"ESSolver.h"

extern int mu;
extern int lambda ;

class ESSolver
{
public:
const static int nVar = 4;

ESSolver();
~ESSolver(void);

void Init();
void Optimize();
int rand\_r(int, int);

private:
double (*muPop)[nVar];
double *muSigma;

double (\*lambdaPop)\[nVar\];
double \*lambdaSigma;

double (\*mulambdaPop)\[nVar\];
double \*mulambdaSigma;

};

"ESSolver.cpp"

#include <iostream>
#include <cmath>
#include <vector>
#include <algorithm>
#include <queue>

#include "../include/ESSolver.h"

using namespace std;

ESSolver::ESSolver()
{
double _muPop [mu][nVar];
muPop = _muPop;
muSigma = new double[mu];

double \_lambdaPop \[lambda\]\[nVar\];
lambdaPop   = \_lambdaPop;
lambdaSigma = new double\[lambda\];
	
double \_mulambdaPop \[mu+lambda\]\[nVar\];
mulambdaPop   = \_mulambdaPop;
mulambdaSigma = new double\[mu+lambda\];

return;

}

ESSolver::~ESSolver(void)
{
if (muSigma) delete muSigma;
if (lambdaSigma) delete lambdaSigma;
if (mulambdaSigma) delete mulambdaSigma;
return;
}

void ESSolver::Init()
{
// Initializing object variable
for (int i = 0; i < mu; i++)
{
for (int j = 0; j < nVar; j++)
{
muPop[i][j] = 50;
}
}

cout << "\\n----- muPop -----\\n";
for (int i = 0; i < mu; i++)
{
	for (int j = 0; j < nVar; j++)
	{
		cout << muPop\[i\]\[j\] << " ";
	}
	cout << endl;
}

}

void ESSolver::Optimize()
{
cout << "\n----- muPop -----\n";
for (int i = 0; i < mu; i++)
{
for (int j = 0; j < nVar; j++)
{
cout << muPop[i][j] << " ";
}
cout << endl;
}
}

On running the following code I am getting Output [^] As you can see from the image, Matrix is not getting initialized. Can anybody tell me why.

CPallini

Quote:

double _muPop [mu][nVar]; muPop = _muPop;

_mPop is a temporary array (a local variable), your muPop pointer is goingo to point to garbage.

Lost User

Thanks :)

CPallini

You are welcome.