From 7fd9ca808c908c67d9bec2183034ad16ea86a912 Mon Sep 17 00:00:00 2001
From: crupest <crupest@outlook.com>
Date: Thu, 2 Apr 2020 21:09:06 +0800
Subject: ...

---
 include/cru/common/base.hpp | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'include/cru/common')

diff --git a/include/cru/common/base.hpp b/include/cru/common/base.hpp
index daee971f..20dd811d 100644
--- a/include/cru/common/base.hpp
+++ b/include/cru/common/base.hpp
@@ -42,4 +42,6 @@ struct Interface {
 [[noreturn]] inline void UnreachableCode() {
   throw std::runtime_error("Unreachable code.");
 }
+
+using Index = gsl::index;
 }  // namespace cru
-- 
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