libcxx initial import

llvm-svn: 103490

1 files changed, 67 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
new file mode 100644
index 00000000000..490289e182e
--- /dev/null
+++ b/libcxx/test/language.support/support.limits/limits/is_specialized.pass.cpp
@@ -0,0 +1,67 @@
+//===----------------------------------------------------------------------===//
+//
+// ΚΚΚΚΚΚΚΚΚΚΚΚΚΚΚΚΚΚΚΚThe LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// test numeric_limits
+
+// Specializations shall be provided for each arithmetic type, both floating
+// point and integer, including bool. The member is_specialized shall be
+// true for all such specializations of numeric_limits.
+
+// Non-arithmetic standard types, such as complex<T> (26.3.2), shall not
+// have specializations.
+
+// From [numeric.limits]:
+
+// The value of each member of a specialization of numeric_limits on a cv
+// -qualified type cv T shall be equal to the value of the corresponding
+// member of the specialization on the unqualified type T.
+
+// More convenient to test it here.
+
+#include <limits>
+#include <complex>
+
+template <class T>
+void test()
+{
+    static_assert(std::numeric_limits<T>::is_specialized,
+                 "std::numeric_limits<T>::is_specialized");
+    static_assert(std::numeric_limits<const T>::is_specialized,
+                 "std::numeric_limits<const T>::is_specialized");
+    static_assert(std::numeric_limits<volatile T>::is_specialized,
+                 "std::numeric_limits<volatile T>::is_specialized");
+    static_assert(std::numeric_limits<const volatile T>::is_specialized,
+                 "std::numeric_limits<const volatile T>::is_specialized");
+}
+
+int main()
+{
+    test<bool>();
+    test<char>();
+    test<wchar_t>();
+#ifndef _LIBCPP_HAS_NO_UNICODE_CHARS
+    test<char16_t>();
+    test<char32_t>();
+#endif
+    test<signed char>();
+    test<unsigned char>();
+    test<signed short>();
+    test<unsigned short>();
+    test<signed int>();
+    test<unsigned int>();
+    test<signed long>();
+    test<unsigned long>();
+    test<signed long long>();
+    test<unsigned long long>();
+    test<float>();
+    test<double>();
+    test<long double>();
+    static_assert(!std::numeric_limits<std::complex<double> >::is_specialized,
+                 "!std::numeric_limits<std::complex<double> >::is_specialized");
+}