File 2737-Add-underscore-separator-description-to-numeric-lite.patch of Package erlang

From 2a129be8c151f2ae04f46d000d1e0556d918cae3 Mon Sep 17 00:00:00 2001
From: Sergey Prokhorov <seriy.pr@gmail.com>
Date: Thu, 17 Oct 2019 00:21:35 +0200
Subject: [PATCH 7/8] Add underscore separator description to numeric literal
 docs

---
 system/doc/reference_manual/data_types.xml | 25 +++++++++++++++++--------
 1 file changed, 17 insertions(+), 8 deletions(-)

diff --git a/system/doc/reference_manual/data_types.xml b/system/doc/reference_manual/data_types.xml
index 93c679357b..8e3e181303 100644
--- a/system/doc/reference_manual/data_types.xml
+++ b/system/doc/reference_manual/data_types.xml
@@ -52,24 +52,33 @@
        Integer with the base <em><c>base</c></em>, that must be an
        integer in the range 2..36.</item>
     </list>
+    <p>Leading zeroes are ignored. Single underscore <c>_</c> can be inserted
+    between digits as a visual separator.</p>
     <p><em>Examples:</em></p>
     <pre>
 1> <input>42.</input>
 42
-2> <input>$A.</input>
+2> <input>-1_234_567_890.</input>
+-1234567890
+3> <input>$A.</input>
 65
-3> <input>$\n.</input>
+4> <input>$\n.</input>
 10
-4> <input>2#101.</input>
+5> <input>2#101.</input>
 5
-5> <input>16#1f.</input>
+6> <input>16#1f.</input>
 31
-6> <input>2.3.</input>
+7> <input>16#4865_316F_774F_6C64.</input>
+5216630098191412324
+8> <input>2.3.</input>
 2.3
-7> <input>2.3e3.</input>
+9> <input>2.3e3.</input>
 2.3e3
-8> <input>2.3e-3.</input>
-0.0023</pre>
+10> <input>2.3e-3.</input>
+0.0023
+11> <input>1_234.333_333</input>
+1234.333333
+</pre>
 <marker id="float_representation_problem" />
     <section>
       <title>Representation of Floating Point Numbers</title>
-- 
2.16.4