From 638ad269e75f28f9830f7bfc01278aeaf5b00135 Mon Sep 17 00:00:00 2001
From: Billy Donahue <billy.donahue@gmail.com>
Date: Sun, 3 Nov 2019 15:27:39 -0500
Subject: [PATCH] Explicitly specify hexfloat in TestResult operator<< (#1078)

---
 src/test_lib_json/jsontest.h | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/src/test_lib_json/jsontest.h b/src/test_lib_json/jsontest.h
index 49d1dcd..e076f7c 100644
--- a/src/test_lib_json/jsontest.h
+++ b/src/test_lib_json/jsontest.h
@@ -8,6 +8,7 @@
 
 #include <cstdio>
 #include <deque>
+#include <iomanip>
 #include <json/config.h>
 #include <json/value.h>
 #include <json/writer.h>
@@ -83,9 +84,7 @@ public:
   // Generic operator that will work with anything ostream can deal with.
   template <typename T> TestResult& operator<<(const T& value) {
     Json::OStringStream oss;
-    oss.precision(16);
-    oss.setf(std::ios_base::floatfield);
-    oss << value;
+    oss << std::setprecision(16) << std::hexfloat << value;
     return addToLastFailure(oss.str());
   }