From: gah@ugcs.caltech.edu   
      
   Quinn Tyler Jackson  wrote:   
   (snip)   
      
   >>      for(k = 0; k < 1000; k++)   
   >>        if(i * i + j * j + k * k % 7 == 0) t++;   
      
   This looks suspicious for the symmetry that it doesn't have.   
   It evaluates as:   
      
             if(((i * i) + (j * j) + (k * k % 7)) == 0) t++;   
      
   The compiler might be able to figure out that when i or j   
   is positive that the if condition is false.   
      
           if((i * i + j * j + k * k) % 7 == 0) t++;   
      
   would have a very different result.   
      
   -- glen   
      
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