From: ike@sdf.org   
      
   On 2025-11-26, bart  wrote:   
   > In C, the solution for my example might look like this:   
   >   
   >      double temp = x+y;   
   >      printf("%llu", ((*(uint64_t*)&temp)>>52) & 2047);   
   >   
   > Rather more fiddly and error prone, and it needs an auxiliary statement   
   > that makes it awkward to embed into an expression. (I also had to think   
   > twice about that format code.)   
      
   The ilogb() function from  extracts the exponent of a double.   
      
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