From 9b22937647110bfc97a1606b178df17cc13a1eaf Mon Sep 17 00:00:00 2001
From: Peter Dimov <pdimov@gmail.com>
Date: Sat, 9 Oct 2021 20:06:20 +0300
Subject: [PATCH] g++ 11 has <memory_resource> but not std::pmr::string

---
 test/sv_construct_test.cpp  | 7 ++++++-
 test/sv_conversion_test.cpp | 9 +++++++--
 2 files changed, 13 insertions(+), 3 deletions(-)

diff --git a/test/sv_construct_test.cpp b/test/sv_construct_test.cpp
index 5107d97..0147828 100644
--- a/test/sv_construct_test.cpp
+++ b/test/sv_construct_test.cpp
@@ -9,6 +9,9 @@
 #if !defined(BOOST_NO_CXX17_HDR_STRING_VIEW)
 # include <string_view>
 #endif
+#if !defined(BOOST_NO_CXX17_HDR_MEMORY_RESOURCE)
+# include <memory_resource>
+#endif
 
 template<class It> std::reverse_iterator<It> make_reverse_iterator( It it )
 {
@@ -304,7 +307,9 @@ int main()
 #if !defined(BOOST_NO_CXX17_HDR_MEMORY_RESOURCE)
 
     {
-        std::pmr::string str = "123";
+        using pmr_string = std::basic_string<char, std::char_traits<char>, std::pmr::polymorphic_allocator<char>>;
+
+        pmr_string str = "123";
 
         boost::core::string_view sv( str );
 
diff --git a/test/sv_conversion_test.cpp b/test/sv_conversion_test.cpp
index 5208d49..604b1f9 100644
--- a/test/sv_conversion_test.cpp
+++ b/test/sv_conversion_test.cpp
@@ -8,6 +8,9 @@
 #if !defined(BOOST_NO_CXX17_HDR_STRING_VIEW)
 # include <string_view>
 #endif
+#if !defined(BOOST_NO_CXX17_HDR_MEMORY_RESOURCE)
+# include <memory_resource>
+#endif
 
 boost::core::string_view f( boost::core::string_view const& str )
 {
@@ -37,8 +40,10 @@ int main()
 #if !defined(BOOST_NO_CXX17_HDR_MEMORY_RESOURCE)
 
     {
-        std::pmr::string s1( "123" );
-        std::pmr::string s2 = f( s1 );
+        using pmr_string = std::basic_string<char, std::char_traits<char>, std::pmr::polymorphic_allocator<char>>;
+
+        pmr_string s1( "123" );
+        pmr_string s2 = f( s1 );
 
         BOOST_TEST_EQ( s1, s2 );
     }