XPost: comp.lang.c   
   From: jacob@jacob.remcomp.fr   
      
   I hope this doesn't go into your kill file... Anyway   
   Now I will do   
      
   maxvalNotOverflow = maxval/base;   
      
   and then, at each step:   
      
        if (value > maxvalNotOverflow) {   
            digit = OVERFLOW_FLAG;   
            break;   
        }   
        else value = value * base;   
      
   Now, I DO believe that my test is OK when testing for an ADDITION overflow.   
      
        if (value+digit < value) {   
            digit = OVERFLOW_FLAG;   
            break;   
        }   
        else value += digit;   
      
   OK?   
      
   Note: ALL values are unsigned.   
      
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