Linux C++ to Microsoft C++ transfer error.

[MyCatAlex]

I have this chunk of C++ code, originally written under Ubuntu OS in Linux C++. Needless to say, It compiled and ran well.

using namespace std;
typedef std::complex<double> dcomp;
class LegendrePolynomials
{
public : void legendreTransform (int NN, //<== dcomp TotFourierTransf[], dcomp GaussLegTransf[])
{
int variant = 2; // variant is for Norm_selector.
double xxx[NN],www[NN]; // abscissas and weights
double theta,thetCosine,weight,ALP;
dcomp FourCoef,GaussFourCoef;
dcomp* p1 = (dcomp*)std::malloc(NN*NN*sizeof(dcomp));
dcomp* p2 = (dcomp*)std::malloc(NN*NN*sizeof(dcomp));

Now after I ported it to Windows 10 C++ I get this incredible error:

The error which is marked by a left looking arrow says "Expression must have a constant value. The value of parameter NN cannot be used as a constant."

I then defined the declaration for NN as const int NN and got a somewhat similar error.

What shall I do?

NN is also used in malloc command. Compiler ignored it, no error!

Thanks, - MyCatAlex

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