[libcxx] r298418 - Add a bit more to one of the chrono tests

[Marshall Clow via cfe-commits]

Author: marshall
Date: Tue Mar 21 13:40:46 2017
New Revision: 298418

URL: http://llvm.org/viewvc/llvm-project?rev=298418&view=rev
Log:
Add a bit more to one of the chrono tests

Modified:
    libcxx/trunk/test/std/utilities/time/time.duration/time.duration.arithmetic/op_+.pass.cpp

Modified: libcxx/trunk/test/std/utilities/time/time.duration/time.duration.arithmetic/op_+.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/utilities/time/time.duration/time.duration.arithmetic/op_%2B.pass.cpp?rev=298418&r1=298417&r2=298418&view=diff
==============================================================================
--- libcxx/trunk/test/std/utilities/time/time.duration/time.duration.arithmetic/op_+.pass.cpp (original)
+++ libcxx/trunk/test/std/utilities/time/time.duration/time.duration.arithmetic/op_+.pass.cpp Tue Mar 21 13:40:46 2017
@@ -32,4 +32,15 @@ int main()
     static_assert(m.count() == m2.count(), "");
     }
 #endif
+
+// P0548
+    {
+    typedef std::chrono::duration<int, std::ratio<10,10> > D10;
+    typedef std::chrono::duration<int, std::ratio< 1, 1> > D1;
+    D10 zero{0};
+    D10 one{1};
+    static_assert( (std::is_same< decltype(+one), decltype(zero-one) >::value), "");
+    static_assert( (std::is_same< decltype(zero+one), D1>::value), "");
+    static_assert( (std::is_same< decltype(+one),     D1>::value), "");
+    }
 }