Re: Can 'graphics' be a file descriptor?

wij <wyniijj5@gmail.com> writes:

In recent revision of libwy (a C++ library that wraps Clib functions), I feel
the so called 'graphics' can be a file descriptor.

A file *descriptor* is a small integer referring to some file-like
entity, used with open/close/read/write.  There's no such thing in
standard C; it's a POSIX concept.

I don't think you're actually working with file descriptors, though it's
hard to tell.

  if((r=popen(GrSvr,cpid,frd,fwr))!=Ok) {
    WY_THROW(r);
  }

popen() is a POSIX function.  It takes two arguments, not four.

The code you posted is C++.  Why are you posting it to comp.lang.c?

[...]

--
Keith Thompson (The_Other_Keith) Keith.S.Thompson+u@gmail.com
void Void(void) { Void(); } /* The recursive call of the void */