Re: TEA problems with temporarely created variables ?

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Article #5039

#5039

From: Skybuck Flying
Date: Tue, 27 Aug 2002 01:48

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This is what delphi would do:

/*
 y = y + (z << 4 ^ z >> 5) + z ^ _sum + k[ _sum & 3 ];

 _sum = _sum + delta;

 z = z + (y << 4 ^ y >> 5) + y ^ _sum + k[ _sum >> 11 & 3];
*/

 // let s translate this code to what c does occurding to operator
preference


 y = y + ( (z << 4) ^ (z >> 5) ) + (z ^ _sum) + k[ (_sum & 3) ];

 _sum = _sum + delta;

 z = z + ( (y << 4) ^ (y >> 5) ) + (y ^ _sum) + k[ (_sum >> (11 & 3)) ];

this causes an access violation in visual c.

occurding to documentation and operator (&)  goes before shift !!

yet visual c does it vice versa ?

(11&3)  this probably leads to the access violation.

The result is now the same as in delphi

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From: "Skybuck Flying" <skybuck2000@hotmail.com>
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Subject: Re: TEA problems with temporarely created variables ?
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