how C output LF to stdout without being changed to CR LF?

Question

On Windows this

#include 

int main() { 
    putc(\'A\',stdout);
    putc(\'\\r\',stdout); 
    putc(\'\\n\',stdout);
}

outp

Answer 1

A text file converts the C character '\n' into the native line ending on output, and converts the native line ending on input into a single '\n'.

To get the result you require, you'd have to change stdout into a binary file stream.

A partial answer is found here. If you have a C99-compliant library, using:

if (freopen(0, "wb", stdout) == 0)
    ...oops...operation failed...

will attempt to change standard output to a binary stream. However, on Windows, the 'C99-compliant library' might be a problem. Nominally, this is the portable (because standard) answer. There is likely a Windows-specific function to do the same job.