Visual c++ I/O Binary file?

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I want to I/O files in binary(means in 0s and 1s).
I also want to edit these 0s and 1s of files.
I have no idea how to do that... please help me.

Posted 20-Feb-13 8:43am

Alamgirable

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Alamgirable 20-Feb-13 14:45pm

OR any body tell me the best place to start working with 0s and 1s.

Richard C Bishop 20-Feb-13 15:32pm

That is quite comical that you think you would have to define "binary" on a programming site of this magnitude.

2 solutions

Solution 2

You usually do not directly edit the 1s and 0s.

When wanting to edit a binary file, people use a Hex Editor[^] where you can edit the hexadecimal representation of the binary file.

Posted 20-Feb-13 10:32am

Maximilien

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Sergey Alexandrovich Kryukov · Accepted Answer · 2013-02-20T09:08:00

Solution 1

You have everything you need with std::ofstream, std::ifstream and std::fstream:
http://www.cplusplus.com/doc/tutorial/files/[^].

I hope you also know bitwise arithmetic and bitwise operators. If not, lean them. Streams give you per-byte access, so you can read a byte, extract individual bits, modify them the way you want and write the whole byte. This is one of the most basic skills all developers are supposed to master.

See, for example: http://www.cplusplus.com/doc/tutorial/operators/[^].

—SA

Posted 20-Feb-13 9:08am

Sergey Alexandrovich Kryukov

Comments

CPallini 20-Feb-13 15:41pm

5.

Sergey Alexandrovich Kryukov 20-Feb-13 19:13pm

Thank you, Carlo.
—SA

Maciej Los 20-Feb-13 16:14pm

Short and to the point! +5!

Sergey Alexandrovich Kryukov 20-Feb-13 19:13pm

Thank you, Maciej.
—SA