Re: [Linux-ia64] Re: forwarded message from David Mosberger

[David Mosberger <davidm@hpl.hp.com>]

>>>>> On 31 Jul 2000 19:53:20 -0400, Owen Taylor <otaylor@redhat.com> said:

  >> #define int_to_any_type(i) ({any_type_t a; a.i = i;})

  Owen> These are GCC specific. To be portable, you'd have to define
  Owen> (possibly inline) functions instead of macros.

That's true.  Since "inline" isn't really ANSI C either, regular
functions would have to be used (slow, but so what; I never understood
why GNU C is the only C variant to provide statement
expressions---it's a critically important feature when translating
other languages to C, for example).

  Owen> Instead, if you are doing programming using GLib, you should
  Owen> convert using:

  Owen>    GINT_TO_POINTER (i), GUINT_TO_POINTER (i) GPOINTER_TO_INT
  Owen> (p), GPOINTER_TO_UINT (p)

  Owen> Which are autoconf'ed to be correct for the platform in use.

Ah, that's fine then.  As long as there is a clean way for source code
to express the conversion, I don't really care how it's implemented.
Sorry for faulting gtk/glib without checking first (it's been too long
since I programmed with this toolkit, so I didn't remember how this
was handled... ;-).

	--david