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-rw-r--r--libcxx/include/experimental/numeric12
1 files changed, 11 insertions, 1 deletions
diff --git a/libcxx/include/experimental/numeric b/libcxx/include/experimental/numeric
index 14a664011b5..19c65313f0f 100644
--- a/libcxx/include/experimental/numeric
+++ b/libcxx/include/experimental/numeric
@@ -7,5 +7,15 @@
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
+#ifndef _LIBCPP_EXPERIMENTAL_NUMERIC
+#define _LIBCPP_EXPERIMENTAL_NUMERIC
-#error "<experimental/numeric> has been removed. Use <numeric> instead."
+#include <__config>
+
+#ifdef _LIBCPP_WARNING
+_LIBCPP_WARNING("<experimental/numeric> has been removed. Use <numeric> instead.")
+#else
+# warning "<experimental/numeric> has been removed. Use <numeric> instead."
+#endif
+
+#endif // _LIBCPP_EXPERIMENTAL_NUMERIC
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