[libc++] Teach is_integral, is_[un]signed and make_[un]signed about __[u]int128_t

This commit also adds tests for std::numeric_limits<__[u]int128_t>.

Reviewed in http://llvm-reviews.chandlerc.com/D2917

llvm-svn: 204849

1 files changed, 4 insertions, 0 deletions

diff --git a/libcxx/test/language.support/support.limits/limits/is_specialized.pass.cpp b/libcxx/test/language.support/support.limits/limits/is_specialized.pass.cpp
index 1e323b80ada..ff5c1a2c0b8 100644
--- a/libcxx/test/language.support/support.limits/limits/is_specialized.pass.cpp
+++ b/libcxx/test/language.support/support.limits/limits/is_specialized.pass.cpp
@@ -59,6 +59,10 @@ int main()
     test<unsigned long>();
     test<signed long long>();
     test<unsigned long long>();
+#ifndef _LIBCPP_HAS_NO_INT128
+    test<__int128_t>();
+    test<__uint128_t>();
+#endif
     test<float>();
     test<double>();
     test<long double>();