From:	Edward Hill <edward_hill AT www DOT anything DOT com>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: Bitwise Operations?
Date:	Tue, 30 Mar 1999 13:33:43 -0800
Organization:	Easams Engineering Systems
Lines:	29
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To:	djgpp AT delorie DOT com
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Matt Murrian wrote:
> 
> Is there a library out there that already has functions for bitwise
> automations ... like checking the value of a bit, etc...

#define BIT0(x) (x & 0x1)
#define BIT1(x) (x & 0x2)
#define BIT2(x) (x & 0x4)
#define BIT3(x) (x & 0x8)
#define BIT4(x) (x & 0x10)
#define BIT5(x) (x & 0x20)
...

then do a

char thebyte = /*what ever*/;

if(BIT0(thebyte))
{
	printf("The Bit in position 0 is set\n");
{
else
{	
	printf("The Bit in posisiton 0 is not set\n");
}

careful of your 'endians' though...

Ed

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