Fix test for C++03 - lacking noexcept

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@257696 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/libcxx/strings/iterators.exceptions.pass.cpp b/test/libcxx/strings/iterators.exceptions.pass.cpp
index cc542f8..591782b 100644
--- a/test/libcxx/strings/iterators.exceptions.pass.cpp
+++ b/test/libcxx/strings/iterators.exceptions.pass.cpp
@@ -49,7 +49,11 @@
     static_assert((!std::__libcpp_string_gets_noexcept_iterator<random_access_iterator<char *> >::value), "");
     static_assert((!std::__libcpp_string_gets_noexcept_iterator<ThrowingIterator      <char *> >::value), "");
     
+#if __has_feature(cxx_noexcept)
     static_assert(( std::__libcpp_string_gets_noexcept_iterator<NonThrowingIterator   <char *> >::value), "");
+#else
+    static_assert((!std::__libcpp_string_gets_noexcept_iterator<NonThrowingIterator   <char *> >::value), "");
+#endif
 	
 //
 //  iterators from libc++'s containers