
  [;1m-spec list_to_float(String) -> float() when String :: string().[0m

  Returns the float whose text representation is [;;4mString[0m.

  For example:

    > list_to_float("2.2017764e+0").
    2.2017764

  The float string format is the same as the format for Erlang float
  literals except for that underscores are not permitted.

  Failure: [;;4mbadarg[0m if [;;4mString[0m contains a bad representation of a
  float.
