Bottle.Number.is_non_neg_float

You're seeing just the macro is_non_neg_float, go back to Bottle.Number module for more information.
Link to this macro

is_non_neg_float(sub)

View Source (macro)

Guard that passes when a number is a non_neg_float

Examples

iex> is_non_neg_float(1)
false

iex> is_non_neg_float(1.1)
true

iex> is_non_neg_float(0.0)
true

iex> is_non_neg_float(0)
false

iex> is_non_neg_float(-1)
false

iex> is_non_neg_float(-1.1)
false