Re: save array to file, read it back in
Why write it as ASCI, he can simply write all the values out to the file and
then read them back in.
If it was me I would do it this way.
void SaveArray(CString Filename,unsigned char *pBuffer,long Size)
{
CFile File;
File.Open(Filename,CFile::modeCreate|CFile::modeWrite);
//first write out the array size
File.Write(&Size,sizeof(long));
//then write out the array
File.Write(pBuffer,sizeof(unsigned char) * Size);
File.Close();
}
unsigned char * ReadArray(CString Filename,long &Size)
{
CFile File;
File.Open(Filename,CFile::modeRead);
//first read the size
File.Read(&Size,sizeof(long));
//then create the array
unsigned char *pBuffer = new unsigned char[Size];
//now read the array back in
File.Read(pBuffer,sizeof(unsigned char) * Size);
File.Close();
return pBuffer;
}
AliR.
"Tom Serface" <tserface@msn.com> wrote in message
news:%2302WYXJvGHA.3552@TK2MSFTNGP03.phx.gbl...
I would write it out in ASCI and then convert when reading back. Since
you
are using MFC (you posted to the MFC forum) you could also use CFile to
make
this easier.
Another idea would be to write the value to the registry so you don't have
the tiny file hanging around. Reading and writing to the registry is
really
quick.
Tom
"markww" <markww@gmail.com> wrote in message
news:1155177778.404846.41190@i42g2000cwa.googlegroups.com...
Hi,
I just have an RGB volume buffer allocated like:
unsigned char pBuffer = new unsigned char[256 * 256 * 50 * 3];
and I'd like to dump it straight to a file so I can read it back in
exactly as above. Can I do something like this:
ofstream o("C:\\test.raw");
o << pBuffer;
o.close();
// Later on read it back in...
ifstream i("C:\\test.raw");
unsigned char *pLater = new unsigned char[256 * 256 * 50 * 3];
i.read();
i.close();
Thanks