From e2dc6538638c009773f7de35bceed4837b7a295c Mon Sep 17 00:00:00 2001
From: Baptiste Wicht <baptiste.wicht@gmail.com>
Date: Thu, 8 Sep 2016 12:44:29 +0200
Subject: [PATCH] Add static assertions on the size of expected

---
 tstl/include/expected.hpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/tstl/include/expected.hpp b/tstl/include/expected.hpp
index 21dbfd1f..592a0080 100644
--- a/tstl/include/expected.hpp
+++ b/tstl/include/expected.hpp
@@ -559,6 +559,10 @@ inline expected<void> make_expected(){
     return expected<void>();
 }
 
+// Make sure the size is maintained reasonable
+static_assert(sizeof(expected<void>) == 2 * sizeof(size_t), "expected<void> should not have overhead");
+static_assert(sizeof(expected<size_t>) == 2 * sizeof(size_t), "expected<void> should not have overhead");
+
 } //end of namespace std
 
 #endif