Zero handling in single-precision IEEE 754 arithmetic:
 +zero is unsigned		(CORRECT)           
 -zero is unsigned		(WRONG)             
 0 - 0 is unsigned		(CORRECT)           
 (-0) - (+0)unsigned		(WRONG)             
 (+1)*(0) is unsigned		(CORRECT)           
 (-1)*(0) is   signed		(CORRECT)           
  
 Zero handling in double-precision IEEE 754 arithmetic:
 +zero is unsigned		(CORRECT)           
 -zero is unsigned		(WRONG)             
 0 - 0 is unsigned		(CORRECT)           
 (-0) - (+0)unsigned		(WRONG)             
 (+1)*(0) is unsigned		(CORRECT)           
 (-1)*(0) is   signed		(CORRECT)           
  
 Zero handling in quadruple-precision IEEE 754 arithmetic:
 +zero is unsigned		(CORRECT)           
 -zero is unsigned		(WRONG)             
 0 - 0 is unsigned		(CORRECT)           
 (-0) - (+0)unsigned		(WRONG)             
 (+1)*(0) is unsigned		(CORRECT)           
 (-1)*(0) is   signed		(CORRECT)