Why does C# allow dividing a non-zero number by zero in floating-point type?

Question

Why C# allows:

1.0 / 0 // Infinity

And doesn't allow:

1 / 0 // Division by constant zero [Compile time error]

Mathematically, is there any differences between integral and floating-point numbers in dividing by zero?

Answer 1

According to Microsoft, "Floating-point arithmetic overflow or division by zero never throws an exception, because floating-point types are based on IEEE 754 and so have provisions for representing infinity and NaN (Not a Number)."

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