Hi all. Help me please to write some code.
I have 2-dimension and 3-dimension arrays. Firs part of code just allocating memory for them and delete both arrays immediately. All OK, there is no memory leak effect.
Code C++ - [expand] |
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| int n = 10;
double ***Ar2, **B;
void __fastcall TForm1::Button3Click(TObject *Sender)
{
Ar2 = new double**[n];
B = new double *[n];
for (int k=0; k<n; k++)
{
Ar2[k] = new double*[n];
B[k] = new double[n];
}
for (int k=0; k<n; k++)
for (int j=0; j<n; j++)
{
Ar2[k][j] = new double[n];
B[k][j] = j;
}
//delete arrays
for (int k=0; k<n; k++)
for (int j=0; j<n; j++)
delete[] Ar2[k][j];
for (int k=0; k<n; k++)
{
delete[] Ar2[k];
delete[] B[k];
}
delete[] Ar2;
delete[] B;
} |
Now I’m trying to copy 2-dim array into one of elements of 3-dim array. SO, need to delete "delete[]" operator from ending cycles to avoid EAccess violation error (non existing element). And i’m using delete[] Ar2[1]; before copying address of 2-dim array into it, but still have memory leak.
Code C++ - [expand] |
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| int n = 10;
double ***Ar2, **B;
void __fastcall TForm1::Button3Click(TObject *Sender)
{
Ar2 = new double**[n];
B = new double *[n];
for (int k=0; k<n; k++)
{
Ar2[k] = new double*[n];
B[k] = new double[n];
}
for (int k=0; k<n; k++)
for (int j=0; j<n; j++)
{
Ar2[k][j] = new double[n];
B[k][j] = j; //fill array by some data
}
delete[] Ar2[1]; //delete content of Ar2[1]
Ar2[1] = B;
//delete arrays
for (int k=0; k<n; k++)
for (int j=0; j<n; j++)
delete[] Ar2[k][j];
for (int k=0; k<n; k++)
{
delete[] Ar2[k];
// delete[] B[k]; ******EAccess violation if not commented*******
}
delete[] Ar2;
delete[] B;
} |
Tell me, where i miss. Program is allocating about 500 kB of RAM after each button press, when executing second code