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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 |
Message-ID: | <37014337.3BBA@gec.nospam.com> |
References: | <7dpfu8$2ov6$1 AT news DOT gate DOT net> |
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To: | djgpp AT delorie DOT com |
DJ-Gateway: | from newsgroup comp.os.msdos.djgpp |
Reply-To: | djgpp AT delorie DOT com |
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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