Is it possible to make an output to a file with bytes that the compiler can't read?

I want to put some text into a file which the compiler can't read itself, is this possible?

Like:

std::ofstream thefile("thefile.dat");
thefile << "The text with the incomprehensible bytes";

I know that there are so called something with so called "null bytes" (/0) but I don't really know what these are.

Isn't there some ANSI standard or something, can't you output every byte within this standard or is it the compiler which decides?

Help me solve this, if there is a solution.

A byte, singed or unsigned, only has 256 total possible values. Your compiler can output them all:

for( x = 0; x < 255; x++ ) fputc( x, outfile );

Not all of these are displayable in a standard text editor, if that's what you mean, but you can still write them all to a file.

Quzah.