1 files changed, 86 insertions, 0 deletions
diff --git a/test/std/utilities/ratio/ratio.comparison/ratio_less.pass.cpp b/test/std/utilities/ratio/ratio.comparison/ratio_less.pass.cpp
new file mode 100644
index 0000000000000..db53ab0ad448b
--- /dev/null
+++ b/test/std/utilities/ratio/ratio.comparison/ratio_less.pass.cpp
@@ -0,0 +1,86 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// test ratio_less
+
+#include <ratio>
+
+int main()
+{
+    {
+    typedef std::ratio<1, 1> R1;
+    typedef std::ratio<1, 1> R2;
+    static_assert((!std::ratio_less<R1, R2>::value), "");
+    }
+    {
+    typedef std::ratio<0x7FFFFFFFFFFFFFFFLL, 1> R1;
+    typedef std::ratio<0x7FFFFFFFFFFFFFFFLL, 1> R2;
+    static_assert((!std::ratio_less<R1, R2>::value), "");
+    }
+    {
+    typedef std::ratio<-0x7FFFFFFFFFFFFFFFLL, 1> R1;
+    typedef std::ratio<-0x7FFFFFFFFFFFFFFFLL, 1> R2;
+    static_assert((!std::ratio_less<R1, R2>::value), "");
+    }
+    {
+    typedef std::ratio<1, 0x7FFFFFFFFFFFFFFFLL> R1;
+    typedef std::ratio<1, 0x7FFFFFFFFFFFFFFFLL> R2;
+    static_assert((!std::ratio_less<R1, R2>::value), "");
+    }
+    {
+    typedef std::ratio<1, 1> R1;
+    typedef std::ratio<1, -1> R2;
+    static_assert((!std::ratio_less<R1, R2>::value), "");
+    }
+    {
+    typedef std::ratio<0x7FFFFFFFFFFFFFFFLL, 1> R1;
+    typedef std::ratio<-0x7FFFFFFFFFFFFFFFLL, 1> R2;
+    static_assert((!std::ratio_less<R1, R2>::value), "");
+    }
+    {
+    typedef std::ratio<-0x7FFFFFFFFFFFFFFFLL, 1> R1;
+    typedef std::ratio<0x7FFFFFFFFFFFFFFFLL, 1> R2;
+    static_assert((std::ratio_less<R1, R2>::value), "");
+    }
+    {
+    typedef std::ratio<1, 0x7FFFFFFFFFFFFFFFLL> R1;
+    typedef std::ratio<1, -0x7FFFFFFFFFFFFFFFLL> R2;
+    static_assert((!std::ratio_less<R1, R2>::value), "");
+    }
+    {
+    typedef std::ratio<0x7FFFFFFFFFFFFFFFLL, 0x7FFFFFFFFFFFFFFELL> R1;
+    typedef std::ratio<0x7FFFFFFFFFFFFFFDLL, 0x7FFFFFFFFFFFFFFCLL> R2;
+    static_assert((std::ratio_less<R1, R2>::value), "");
+    }
+    {
+    typedef std::ratio<0x7FFFFFFFFFFFFFFDLL, 0x7FFFFFFFFFFFFFFCLL> R1;
+    typedef std::ratio<0x7FFFFFFFFFFFFFFFLL, 0x7FFFFFFFFFFFFFFELL> R2;
+    static_assert((!std::ratio_less<R1, R2>::value), "");
+    }
+    {
+    typedef std::ratio<-0x7FFFFFFFFFFFFFFDLL, 0x7FFFFFFFFFFFFFFCLL> R1;
+    typedef std::ratio<-0x7FFFFFFFFFFFFFFFLL, 0x7FFFFFFFFFFFFFFELL> R2;
+    static_assert((std::ratio_less<R1, R2>::value), "");
+    }
+    {
+    typedef std::ratio<0x7FFFFFFFFFFFFFFFLL, 0x7FFFFFFFFFFFFFFELL> R1;
+    typedef std::ratio<0x7FFFFFFFFFFFFFFELL, 0x7FFFFFFFFFFFFFFDLL> R2;
+    static_assert((std::ratio_less<R1, R2>::value), "");
+    }
+    {
+    typedef std::ratio<641981, 1339063> R1;
+    typedef std::ratio<1291640, 2694141LL> R2;
+    static_assert((!std::ratio_less<R1, R2>::value), "");
+    }
+    {
+    typedef std::ratio<1291640, 2694141LL> R1;
+    typedef std::ratio<641981, 1339063> R2;
+    static_assert((std::ratio_less<R1, R2>::value), "");
+    }
+}