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Previous Year Question (PYQs)

What is the result of the following operation defined by IEEE754
(NaN == NaN) 
1. false 
2. true 
3. error 
4.1




Solution

According to IEEE-754 floating-point standard:

  • NaN (Not a Number) is unordered.

  • Any comparison involving NaN (except !=) is false.

  • That means even NaN == NaN evaluates to false.


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