Binary reading

[Ktomislav]

Is it possible to read file bit by bit to boolean?

[wtd]

You can read in individual bytes, then use bit-wise operators to access the individual bits.

[Ktomislav]

Can I do it like this?

code:

ifstream file ("example.bin", ios::in|ios::binary|ios::ate); file.seekg (ios::beg); char byte[1]; file.read (byte, 1);

And could you please explain me why do I have to use ios::ate and ios::beg instead of nothing or just ios::beg?

[btiffin]

ios::ate will seek to end on open, so then ios::beg will be required to seek back to the beginning. If you don't set ate, you won't need the seek to beginning. If you have something like

code:

char charvar[1]; ifstream myfile; myfile.open("filename", ios::in | ios::bin); file.read(charvar, 1);

should work.

The fine control provided by the I/O stream flags and manipulators requires a fair level of understanding for optimal use.

http://www.cplusplus.com/doc/tutorial/files.html is a good read.

Cheers
Edit; yeah, more typos

[Ktomislav]

btiffin @ 15.2.2009, 06:05 wrote:

code:

char charvar[1]; ifstream myfile; myfile.open("filename", ios::in | ios::bin); file.read(charvar, 1);

should work.

I know, but it doesn't work. Never mind, I figured out what I needed and thank you for replying.