From da9210d41e170c243e438031783f6efc83caee33 Mon Sep 17 00:00:00 2001
From: Jarryd Beck <jarro.2783@gmail.com>
Date: Tue, 8 Aug 2017 08:12:31 +1000
Subject: [PATCH] fix multiple definitions

Fixes #61. Commit 5e9f8225982e9711b548c886fe6b477cdefd0fd4 introduced
duplicate definitions across separate translation units.
---
 include/cxxopts.hpp | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/include/cxxopts.hpp b/include/cxxopts.hpp
index 30a7432..72cf54e 100644
--- a/include/cxxopts.hpp
+++ b/include/cxxopts.hpp
@@ -412,8 +412,11 @@ namespace cxxopts
 
   namespace values
   {
-    std::basic_regex<char> integer_pattern
-      ("(-)?(0x)?([1-9a-zA-Z][0-9a-zA-Z]*)|(0)");
+    namespace
+    {
+      std::basic_regex<char> integer_pattern
+        ("(-)?(0x)?([1-9a-zA-Z][0-9a-zA-Z]*)|(0)");
+    }
 
     namespace detail
     {
@@ -530,48 +533,56 @@ namespace cxxopts
       }
     }
 
+    inline
     void
     parse_value(const std::string& text, uint8_t& value)
     {
       integer_parser(text, value);
     }
 
+    inline
     void
     parse_value(const std::string& text, int8_t& value)
     {
       integer_parser(text, value);
     }
 
+    inline
     void
     parse_value(const std::string& text, uint16_t& value)
     {
       integer_parser(text, value);
     }
 
+    inline
     void
     parse_value(const std::string& text, int16_t& value)
     {
       integer_parser(text, value);
     }
 
+    inline
     void
     parse_value(const std::string& text, uint32_t& value)
     {
       integer_parser(text, value);
     }
 
+    inline
     void
     parse_value(const std::string& text, int32_t& value)
     {
       integer_parser(text, value);
     }
 
+    inline
     void
     parse_value(const std::string& text, uint64_t& value)
     {
       integer_parser(text, value);
     }
 
+    inline
     void
     parse_value(const std::string& text, int64_t& value)
     {