Posted on 2002-05-14
fwrite(), fprintf() and similar functions take a FILE* as the target device. The FILE* should be a file opened by fopen() or special devices like stdout and stderr.
I want to know if there is a FILE* device that does nothing, so that if I pass it to fprintf(), it does not output anything to any file/device. Can I use NULL to achieve this? ( fprintf(NULL, "hello world"); )