Update mix and changelog for version 1.3.0

elixir-cldr · Jan 13, 2018 · f1dc8a5 · f1dc8a5
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -1,6 +1,29 @@
-# Changelog for Cldr v1.2.0
+# Changelog for Cldr v1.3.0
+
+This is the changelog for Cldr v1.3.0 released on January 14th, 2018.  For older changelogs please consult the release tag on [GitHub](https://github.com/kipcole9/cldr/tags)
+
+### Enhancements
+
+* Add `Cldr.Digits.number_of_digits/1` that returns the number of digits (precision) of a float, integer or Decimal.  The primary intent is to support better detection of precision errors after parsing a float string.  A double precision 64-bit float (which is what Erlang/Elixir use) can safely support 15 digits.  According to [Wikipedia](https://en.wikipedia.org/wiki/IEEE_754#Character_representation) a decimal floating point number should round-trip convert to string representation and back for 16 digits without rounding (and 17 using "round to even").  Some examples:
+
+```
+iex> Cldr.Digits.number_of_digits(1234)
+4
 
-This is the changelog for Cldr v1.2.0 released on January 9th, 2018.  For older changelogs please consult the release tag on [GitHub](https://github.com/kipcole9/cldr/tags)
+iex> Cldr.Digits.number_of_digits(Decimal.new("123456789"))
+9
+
+iex> Cldr.Digits.number_of_digits(1234.456)
+7
+
+iex> Cldr.Digits.number_of_digits(1234.56789098765)
+15
+
+iex> Cldr.Digits.number_of_digits '12345'
+5
+```
+
+# Changelog for Cldr v1.2.0
 
 ### Bug Fixes
 

diff --git a/lib/cldr/helpers/digits.ex b/lib/cldr/helpers/digits.ex
@@ -55,6 +55,7 @@ defmodule Cldr.Digits do
 
       iex> Cldr.Digits.fraction_as_integer(1999)
       0
+      
   """
   @spec fraction_as_integer(Math.number_or_decimal() | {list, list, 1 | -1}) :: integer
   def fraction_as_integer({_integer, fraction, _sign})

diff --git a/mix.exs b/mix.exs
@@ -1,7 +1,7 @@
 defmodule Cldr.Mixfile do
   use Mix.Project
 
-  @version "1.2.0"
+  @version "1.3.0"
 
   def project do
     [
-Original file line number
+Diff line change
@@ Expand Up / @@ -55,6 +55,7 @@ defmodule Cldr.Digits do @@
           iex> Cldr.Digits.fraction_as_integer(1999)
       """
       @spec fraction_as_integer(Math.number_or_decimal() | {list, list, 1 | -1}) :: integer
       def fraction_as_integer({_integer, fraction, _sign})
@@ Expand Down @@