How do I read binary data from std::cin?

Reading Binary Data from std::cin

Reading binary data from std::cin can be tricky because it is not initially opened with ios_binary. If you must use cin, you need to reopen it in binary mode. This is not part of the standard, so you'll need to consult the documentation for your operating system and compiler for specific instructions.

Once cin is opened in binary mode, you can use cin.read() to read bytes. If you know that there is no difference between text and binary in your system, you can use read without worrying about the file type.

Here are some additional resources that may be helpful:

• [Opening std::cin in binary mode](https://comp.unix.programmer.narkive.com/jeVj1j3I/how-can-i-reopen-std-cin-and-std-cout-in-binary-mode)
• [Reading and writing binary data](https://en.cppreference.com/w/cpp/io/std_filebuf/read)

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