From 0cfc4199c1742dc30beb209f21a82e739680f085 Mon Sep 17 00:00:00 2001
From: Alexey Kopytov <akopytov@gmail.com>
Date: Fri, 25 Aug 2017 14:35:44 +0300
Subject: [PATCH] Bug #87543: dd_sdi-t.cc assumes 'char' to be signed

Declare 'x' as a signed char explicitly in the CharPromotion test.
---
 unittest/gunit/dd_sdi-t.cc | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/unittest/gunit/dd_sdi-t.cc b/unittest/gunit/dd_sdi-t.cc
index 941ed20bf6f..0bce6fe1c19 100644
--- a/unittest/gunit/dd_sdi-t.cc
+++ b/unittest/gunit/dd_sdi-t.cc
@@ -515,7 +515,7 @@ TEST(SdiTest, Serialization_perf)
 
 TEST(SdiTest, CharPromotion)
 {
-  char x= 127;
+  signed char x= 127;
   unsigned char ux= x;
   EXPECT_EQ(127u, ux);
 
@@ -526,7 +526,7 @@ TEST(SdiTest, CharPromotion)
   EXPECT_EQ(127u, usx);
 
   unsigned char tmp= 0xe0;
-  x= static_cast<char>(tmp);
+  x= static_cast<signed char>(tmp);
   EXPECT_EQ(-32,x);
 
   ux= x;