From 4d8d35acc8259406227fe0e32702edc17c7fbf1a Mon Sep 17 00:00:00 2001
From: Krystian Stasiowski <sdkrystian@gmail.com>
Date: Sat, 1 Feb 2020 21:24:46 -0500
Subject: [PATCH] Fix macro guarding test traits

---
 include/boost/static_string/config.hpp | 3 ++-
 test/constexpr_tests.hpp               | 2 +-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/include/boost/static_string/config.hpp b/include/boost/static_string/config.hpp
index 7c61947..d4e1a5a 100644
--- a/include/boost/static_string/config.hpp
+++ b/include/boost/static_string/config.hpp
@@ -146,7 +146,8 @@ defined(__clang__) && \
 #define BOOST_STATIC_STRING_CPP14_CONSTEXPR
 #endif
 
-//(defined(_MSVC_LANG) && BOOST_STATIC_STRING_STANDARD_VERSION < 201703L)
+// For clang and msvc, constexpr does not work with library
+// comparison function objects.
 #if (defined(__clang__) && (__clang_major__ < 9)) || \
 (defined(_MSVC_LANG) && !defined(BOOST_STATIC_STRING_CPP20))
 #define BOOST_STATIC_STRING_NO_PTR_COMP_FUNCTIONS
diff --git a/test/constexpr_tests.hpp b/test/constexpr_tests.hpp
index e3dd8d0..7a1a0ca 100644
--- a/test/constexpr_tests.hpp
+++ b/test/constexpr_tests.hpp
@@ -11,7 +11,7 @@
 #include <boost/static_string/static_string.hpp>
 
 // char_traits aren't constexpr until c++17
-#if BOOST_STATIC_STRING_STANDARD_VERSION <= 201703L
+#ifdef BOOST_STATIC_STRING_CPP14
 struct cxper_char_traits
 {
   using char_type = char;