Xref: utzoo comp.lang.c:5509 comp.lang.c++:580
Path: utzoo!mnetor!uunet!husc6!mit-eddie!uw-beaver!uw-june!uw-entropy!dataio!bright
From: bright@dataio.Data-IO.COM (Walter Bright)
Newsgroups: comp.lang.c,comp.lang.c++
Subject: Re: Binary integer literals
Message-ID: <1435@dataio.Data-IO.COM>
Date: 9 Dec 87 18:44:59 GMT
References: <2752@super.upenn.edu>
Reply-To: bright@dataio.UUCP (Walter Bright)
Organization: Data I/O Corporation; Redmond, WA
Lines: 16
Keywords: binary, integer, literal

In article <2752@super.upenn.edu> george@hyper.lap.upenn.edu (George Zipperlen) writes:
<Wanted: a way to declare binary constants!
<Arrays of binaries intended as bitmaps are much easier to read and edit 
<than arrays of hex declarations.  As an example here's a piece of C code:
<static unsigned short CursorPattern[16] = { 
<    0xff00,     /*  1111111100000000,  */
<    0x0000 }    /*  0000000000000000 } */
<What I would like to be able to do is to declare binary constants in some
<form like (just a suggestion):
<    0b#01000100 

This is implemented in Datalight C as 0b01000100. It is also in printf()
and scanf() as %b format. I sent a letter asking the ANSI C committee to
include it, but they cited a 'lack of prior art'. So I implemented it in
Datalight C so it is 'prior art' now. Pressure your C compiler vendor to
implement it also.