C / C++ / MFC

Maximilien wrote:

also, if the format for each line if fixed, why can't you use scanf ( or related or better function ) to parse one line in one pass ?

"Take only what you need and leave the land as you found it." - Native American Proverb

RobJones wrote:

char cBuf[65536];
UINT uBytesRead;
// Continue reading until no more data is read
while(uBytesRead = file.Read(cBuf, sizeof(cBuf)-1))
{
// Null terminate after the last charcter
cBuf[uBytesRead] = NULL;
// Add the buffer to the mapped CString
strData += CString(cBuf);
}
// Close the file
file.Close();

DWORD dwLength = file.GetLength();
char *cBuf = new char[dwLength];
DWORD dwBytesRead = file.Read(cBuf, dwLength);
file.Close();

RobJones wrote:

// Split up the data per line
nEndLine = strData.Find(_T("\r\n"), 0);
if(nEndLine > 0)
{
CString strLine = strData.Mid(0, nEndLine);

"Take only what you need and leave the land as you found it." - Native American Proverb

"Take only what you need and leave the land as you found it." - Native American Proverb

hoanhdung wrote:

I want to load data from excel (similar to access),

houari_id wrote:

for (int x=0;x for (x=0;x B[x][0] = A[0][M];
B[x][1] = A[1][M];
}

houari_id wrote:

for (int z=0; z temp_Sum += (A[x][z]*B[z][y]);
}

houari_id wrote:

what should I do?

double **B = new double*[FirstDimension];
for (int x = 0; x < FirstDimension; x++)
{    
    B[x] = new double[SecondDimension];    
    for (int y = 0; y < SecondDimension; y++)    
    {        
        B[x][y] = 0.0; // initialize to some value
    }
}
...
for (x = 0; x < FirstDimension; x++)
    delete [] B[x];
 
delete [] B;

"Take only what you need and leave the land as you found it." - Native American Proverb