From ff181fc5e52073511616d453aec475b47b76a78c Mon Sep 17 00:00:00 2001
From: Evgeny Safronov <division494@gmail.com>
Date: Tue, 9 Jan 2018 15:22:37 +0300
Subject: [PATCH] fix: clang 5.x support

---
 include/blackhole/sink/file.hpp | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/include/blackhole/sink/file.hpp b/include/blackhole/sink/file.hpp
index 1f8eb05f..7e45d942 100644
--- a/include/blackhole/sink/file.hpp
+++ b/include/blackhole/sink/file.hpp
@@ -28,10 +28,6 @@ class file_t;
 template<class Rep, class Ratio = std::ratio<1>>
 class binary_unit;
 
-/// Disable all fractional units.
-template<class Rep, std::uintmax_t Denom>
-class binary_unit<Rep, std::ratio<1, Denom>>;
-
 template<class Rep>
 class binary_unit<Rep, std::ratio<1>> {
 public:
@@ -52,6 +48,8 @@ class binary_unit<Rep, std::ratio<1>> {
 
 template<class Rep, class Ratio>
 class binary_unit {
+    static_assert(Ratio::den == 1, "fractional units are permitted");
+
 public:
     typedef Rep rep;