Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!cs.utexas.edu!rutgers!columbia!cubmol!ping
From: ping@cubmol.bio.columbia.edu (Shiping Zhang)
Newsgroups: comp.lang.c
Subject: array of bits field
Message-ID: <1990Feb12.182517.10921@cubmol.bio.columbia.edu>
Date: 12 Feb 90 18:25:17 GMT
References: <2802@cunixc.cc.columbia.edu> <22287@mimsy.umd.edu> <7184@arcturus> <M:L163Fxds13@ficc.uu.net> <11961@frog.UUCP> <MEISSNER.90Feb12113201@curley.osf.org>
Reply-To: ping@cubmol.bio.columbia.edu (Shiping Zhang)
Organization: Dept. of Biology, Columbia Univ., New York, NY
Lines: 26

Is there a way to define an array of bits field which are tightly packed?

I tried the following but it caused compiling error.

struct {
    int bits[16]:1;
} bits;

What I intended to do is as following:

first define an union:

union {
    int i;
    struct {
        int bits[16]:1;
    } bits;
} bits;

then assign a ingeter to bits.i;

then get the bit pattern of bits.i via using bits.bits.bits

Thanks.

-ping