Upgrade <ratio> to use template aliases when available.
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@132342 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/ratio b/include/ratio
index 7369ccf..9764014 100644
--- a/include/ratio
+++ b/include/ratio
@@ -274,10 +274,19 @@
>::type type;
};
+#ifndef _LIBCPP_HAS_NO_TEMPLATE_ALIASES
+
+template <class _R1, class _R2> using ratio_multiply
+ = typename __ratio_multiply<_R1, _R2>::type;
+
+#else // _LIBCPP_HAS_NO_TEMPLATE_ALIASES
+
template <class _R1, class _R2>
struct _LIBCPP_VISIBLE ratio_multiply
: public __ratio_multiply<_R1, _R2>::type {};
+#endif // _LIBCPP_HAS_NO_TEMPLATE_ALIASES
+
template <class _R1, class _R2>
struct __ratio_divide
{
@@ -292,10 +301,19 @@
>::type type;
};
+#ifndef _LIBCPP_HAS_NO_TEMPLATE_ALIASES
+
+template <class _R1, class _R2> using ratio_divide
+ = typename __ratio_divide<_R1, _R2>::type;
+
+#else // _LIBCPP_HAS_NO_TEMPLATE_ALIASES
+
template <class _R1, class _R2>
struct _LIBCPP_VISIBLE ratio_divide
: public __ratio_divide<_R1, _R2>::type {};
+#endif // _LIBCPP_HAS_NO_TEMPLATE_ALIASES
+
template <class _R1, class _R2>
struct __ratio_add
{
@@ -318,10 +336,19 @@
>::type type;
};
+#ifndef _LIBCPP_HAS_NO_TEMPLATE_ALIASES
+
+template <class _R1, class _R2> using ratio_add
+ = typename __ratio_add<_R1, _R2>::type;
+
+#else // _LIBCPP_HAS_NO_TEMPLATE_ALIASES
+
template <class _R1, class _R2>
struct _LIBCPP_VISIBLE ratio_add
: public __ratio_add<_R1, _R2>::type {};
+#endif // _LIBCPP_HAS_NO_TEMPLATE_ALIASES
+
template <class _R1, class _R2>
struct __ratio_subtract
{
@@ -344,10 +371,19 @@
>::type type;
};
+#ifndef _LIBCPP_HAS_NO_TEMPLATE_ALIASES
+
+template <class _R1, class _R2> using ratio_subtract
+ = typename __ratio_subtract<_R1, _R2>::type;
+
+#else // _LIBCPP_HAS_NO_TEMPLATE_ALIASES
+
template <class _R1, class _R2>
struct _LIBCPP_VISIBLE ratio_subtract
: public __ratio_subtract<_R1, _R2>::type {};
+#endif // _LIBCPP_HAS_NO_TEMPLATE_ALIASES
+
// ratio_equal
template <class _R1, class _R2>