Documentation correction: absint()

[mdawaffe]

Documentation currently states:
"Converts value to positive integer."

Should state:
"Converts value to nonnegative integer."

Wouldn't it be clearer to use the "math" language there: "Converts value to absolute integer."

Looking at how this is used, perhaps we need something different there. Currently absint(100) returns 100, absint(-100) returns 100 too but is used to filter various db IDs where -100 is an invalid value. Perhaps we need something like:

function absint( $maybeint ) {
  if ( intval( $maybeint ) < 1 )
    return 0;

  return intval( $maybeint );
}

"nonnegative" is "math" language :)

​http://mathworld.wolfram.com/Nonnegative.html

​http://en.wikipedia.org/wiki/Negative_and_non-negative_numbers

I have not heard "absolute integer" before.

It probably doesn't matter how the function actually works, as long as it never returns negative numbers.

Replying to mdawaffe:

I have not heard "absolute integer" before.

Agreed, that should have been something like "Converts an integer to it's absolute value." but nonnegative sounds better.

(In [10540]) Documentation correction: absint(), props mdawaffe, fixes #9079