From 5c82e38c93fb8022400050a20bec94bd56c9dcbe Mon Sep 17 00:00:00 2001
From: Peter Dimov <pdimov@gmail.com>
Date: Sat, 9 Oct 2021 16:55:33 +0300
Subject: [PATCH] Add other relational operators; update sv_eq_test

---
 include/boost/core/string_view.hpp | 20 ++++++++++++++++++++
 test/sv_eq_test.cpp                | 14 ++++++++++++--
 2 files changed, 32 insertions(+), 2 deletions(-)

diff --git a/include/boost/core/string_view.hpp b/include/boost/core/string_view.hpp
index 23c2d50..0ee3916 100644
--- a/include/boost/core/string_view.hpp
+++ b/include/boost/core/string_view.hpp
@@ -904,6 +904,26 @@ public:
     {
         return sv1.compare( sv2 ) != 0;
     }
+
+    BOOST_CXX14_CONSTEXPR friend bool operator<( basic_string_view sv1, basic_string_view sv2 ) BOOST_NOEXCEPT
+    {
+        return sv1.compare( sv2 ) < 0;
+    }
+
+    BOOST_CXX14_CONSTEXPR friend bool operator<=( basic_string_view sv1, basic_string_view sv2 ) BOOST_NOEXCEPT
+    {
+        return sv1.compare( sv2 ) <= 0;
+    }
+
+    BOOST_CXX14_CONSTEXPR friend bool operator>( basic_string_view sv1, basic_string_view sv2 ) BOOST_NOEXCEPT
+    {
+        return sv1.compare( sv2 ) > 0;
+    }
+
+    BOOST_CXX14_CONSTEXPR friend bool operator>=( basic_string_view sv1, basic_string_view sv2 ) BOOST_NOEXCEPT
+    {
+        return sv1.compare( sv2 ) >= 0;
+    }
 };
 
 template<class Ch> std::basic_ostream<Ch>& operator<<( std::basic_ostream<Ch>& os, basic_string_view<Ch> str )
diff --git a/test/sv_eq_test.cpp b/test/sv_eq_test.cpp
index a71e125..ba32d13 100644
--- a/test/sv_eq_test.cpp
+++ b/test/sv_eq_test.cpp
@@ -9,8 +9,18 @@
 # include <string_view>
 #endif
 
-#define TEST_EQ(x, y) BOOST_TEST_EQ(x, y); BOOST_TEST_NOT((x) != (y))
-#define TEST_NE(x, y) BOOST_TEST_NE(x, y); BOOST_TEST_NOT((x) == (y))
+#define TEST_EQ(x, y) \
+    BOOST_TEST_EQ(x, y); \
+    BOOST_TEST_NOT((x) != (y)); \
+    BOOST_TEST_LE(x, y); \
+    BOOST_TEST_GE(x, y); \
+    BOOST_TEST_NOT((x) < (y)); \
+    BOOST_TEST_NOT((x) > (y))
+
+#define TEST_NE(x, y) \
+    BOOST_TEST_NE(x, y); \
+    BOOST_TEST_NOT((x) == (y)); \
+    BOOST_TEST((x) < (y) || (x) > (y));
 
 int main()
 {