View Source Want.Float (want v1.17.1)
Performs type conversions to float values.
Summary
Types
Functions
Cast a value to a float.
Options
:max
- Maximum allowable float value.:min
- Minimum allowable float value.
Examples
iex> Want.Float.cast("1")
{:ok, 1.0}
iex> Want.Float.cast(1.0)
{:ok, 1.0}
iex> Want.Float.cast(:'1')
{:ok, 1.0}
iex> Want.Float.cast({:a, :b})
{:error, "Failed to convert value {:a, :b} to float."}
iex> Want.Float.cast("10", max: 3.0)
{:error, "Float value exceeds maximum 3.0."}
iex> Want.Float.cast(1.0, min: 3.0)
{:error, "Float value below minimum 3.0."}
Callback implementation for Want.Type.cast/2
.