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ispow2

ispow2(n) -> Bool

Test whether n is a power of two

Examples

1. Check if a number is a power of two:

   julia> ispow2(8)
   true

   This example checks if the number 8 is a power of two, which returns true.

2. Verify if a number is not a power of two:

   julia> ispow2(7)
   false

   It checks if the number 7 is a power of two, and since it is not, the function returns false.

3. Handle negative numbers:

   julia> ispow2(-16)
   false

   The function correctly handles negative numbers and returns false for -16, which is not a power of two.

Common mistake example:

julia> ispow2(0)
true

In this example, the input number is 0. However, 0 is not considered a power of two, so the function should return false instead of true. It's important to handle this edge case correctly when using ispow2.

See Also

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