[libcxx] [test] D26812: In random tests, use real static_asserts and silence a warning.

In C++11 mode and newer, use real static_asserts.
In C++03 mode, min() and max() aren't constexpr, so use plain asserts.

One test triggers MSVC's warning C4310 "cast truncates constant value".
The code is valid, and yet the warning is valid, so I'm silencing it
through push-disable-pop.

llvm-svn: 287391

1 files changed, 14 insertions, 4 deletions

diff --git a/libcxx/test/std/numerics/rand/rand.eng/rand.eng.sub/values.pass.cpp b/libcxx/test/std/numerics/rand/rand.eng/rand.eng.sub/values.pass.cpp
index 75716a43dea..b3f12e72383 100644
--- a/libcxx/test/std/numerics/rand/rand.eng/rand.eng.sub/values.pass.cpp
+++ b/libcxx/test/std/numerics/rand/rand.eng/rand.eng.sub/values.pass.cpp
@@ -38,8 +38,13 @@ test1()
     static_assert((E::word_size == 24), "");
     static_assert((E::short_lag == 10), "");
     static_assert((E::long_lag == 24), "");
-    /*static_*/assert((E::min() == 0)/*, ""*/);
-    /*static_*/assert((E::max() == 0xFFFFFF)/*, ""*/);
+#if TEST_STD_VER >= 11
+    static_assert((E::min() == 0), "");
+    static_assert((E::max() == 0xFFFFFF), "");
+#else
+    assert((E::min() == 0));
+    assert((E::max() == 0xFFFFFF));
+#endif
     static_assert((E::default_seed == 19780503u), "");
     where(E::word_size);
     where(E::short_lag);
@@ -54,8 +59,13 @@ test2()
     static_assert((E::word_size == 48), "");
     static_assert((E::short_lag == 5), "");
     static_assert((E::long_lag == 12), "");
-    /*static_*/assert((E::min() == 0)/*, ""*/);
-    /*static_*/assert((E::max() == 0xFFFFFFFFFFFFull)/*, ""*/);
+#if TEST_STD_VER >= 11
+    static_assert((E::min() == 0), "");
+    static_assert((E::max() == 0xFFFFFFFFFFFFull), "");
+#else
+    assert((E::min() == 0));
+    assert((E::max() == 0xFFFFFFFFFFFFull));
+#endif
     static_assert((E::default_seed == 19780503u), "");
     where(E::word_size);
     where(E::short_lag);