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From: diamond@tkou02.enet.dec.com (diamond@tkovoa)
Newsgroups: comp.lang.c
Subject: Re: IsUnsigned() function?
Message-ID: <1859@tkou02.enet.dec.com>
Date: 17 Jul 90 07:13:25 GMT
References: <1990Jul16.214155.5087@Neon.Stanford.EDU>
Reply-To: diamond@tkou02.enet.dec.com (diamond@tkovoa)
Organization: Digital Equipment Corporation Japan , Tokyo
Lines: 29

In article <1990Jul16.214155.5087@Neon.Stanford.EDU> jhsu@Neon.Stanford.EDU (Jeffrey H. Hsu) writes:

>	Here is a C question I was asked at a ________t interview
>	How would you write a space efficient algorithm/function in C that 
>takes in an integer and returns 0 if signed and 1 if unsigned?
>	IsUnsigned(a)
>		int a;
>	{
>	}

Uh, maybe
    /* Remember first to #define signed or #define unsigned. */
    IsUnsigned(a)
    #ifdef signed
            int a;
    #else
            unsigned a;
    #endif
    {
    #ifdef signed
            return 0;
    #else
            return 1;
    #end
    }
Doesn't sound like a job that a programmer would want.....
-- 
Norman Diamond, Nihon DEC     diamond@tkou02.enet.dec.com
This is me speaking.  If you want to hear the company speak, you need DECtalk.