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converting HEX value to OCTAL

 
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herby handcock
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converting HEX value to OCTAL
PostPosted: Wed Oct 06, 2004 2:37 am     Reply with quote
Hi

I'm trying to convert a hex number e.g 0x147F1E into its octal format so it can be displayed as 5077436. Anybody any ideas.

Cheers
asmallri



Joined: 12 Aug 2004
Posts: 1634
Location: Perth, Australia

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PostPosted: Wed Oct 06, 2004 4:55 am     Reply with quote
I am assuming for some reason you can't use printf routines to do it for you. In which case all you need to do is shift left or right (depending on wherether or not you want most or least significant digit first) three bit positions at a time. Each three bits give you the octal value. Repeat this process 8 times to give you all 24 bits.

Code:

long k = 0x147F1E;
int i,j ;

for (i = 0; i<8 ;i++)
   {
    j := k & 0x7;
    k = k >> 3;
    // now do something with j......
   //..
   }
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