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c++naninfinity

What is the difference between IND and NAN numbers

A NAN value means Not A Number and IND value means Indeterminate number. But what is the difference between these two. How can we represent both in c++.

Solution

  • But what is the difference between these two.

    They are both the same thing. Some platforms choose to display a non-number as some variant of NaN, while others choose to display it as some variant of IND.

    How can we represent both in c++.

    std::numeric_limits<double>::quiet_NaN() (or float or long double, if you prefer).