[libcxx] r284731 - Adding a missing constexpr test for reverse_iterator operator[].

[Marshall Clow via cfe-commits]

Author: marshall
Date: Thu Oct 20 09:57:34 2016
New Revision: 284731

URL: http://llvm.org/viewvc/llvm-project?rev=284731&view=rev
Log:
Adding a missing constexpr test for reverse_iterator operator[].

Modified:
    libcxx/trunk/test/std/iterators/predef.iterators/reverse.iterators/reverse.iter.ops/reverse.iter.opindex/difference_type.pass.cpp

Modified: libcxx/trunk/test/std/iterators/predef.iterators/reverse.iterators/reverse.iter.ops/reverse.iter.opindex/difference_type.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/iterators/predef.iterators/reverse.iterators/reverse.iter.ops/reverse.iter.opindex/difference_type.pass.cpp?rev=284731&r1=284730&r2=284731&view=diff
==============================================================================
--- libcxx/trunk/test/std/iterators/predef.iterators/reverse.iterators/reverse.iter.ops/reverse.iter.opindex/difference_type.pass.cpp (original)
+++ libcxx/trunk/test/std/iterators/predef.iterators/reverse.iterators/reverse.iter.ops/reverse.iter.opindex/difference_type.pass.cpp Thu Oct 20 09:57:34 2016
@@ -17,6 +17,7 @@
 #include <iterator>
 #include <cassert>
 
+#include "test_macros.h"
 #include "test_iterators.h"
 
 template <class It>
@@ -35,4 +36,14 @@ int main()
     const char* s = "1234567890";
     test(random_access_iterator<const char*>(s+5), 4, '1');
     test(s+5, 4, '1');
+
+#if TEST_STD_VER > 14
+    {
+    constexpr const char *p = "123456789";
+    typedef std::reverse_iterator<const char *> RI;
+    constexpr RI it1 = std::make_reverse_iterator(p + 5);
+    static_assert(it1[0] == '5', "");
+    static_assert(it1[4] == '1', "");
+    }
+#endif
 }