From 726fed0d67013cbfac7921d3d4613ca83406fb0f Mon Sep 17 00:00:00 2001
From: Ulf Hermann <ulf.hermann@theqtcompany.com>
Date: Fri, 16 Oct 2015 16:52:51 +0200
Subject: Interpret precision == -128 as "shortest" double conversion

Also use this for converting doubles with QVariant. We generally want
exact results there, rather than adding rounding errors whenever we
convert.

[ChangeLog][QtCore][QLocale] Added special value for double conversion
precision to get shortest accurate representation.

Change-Id: I905b8a103f39adf31d24b6ce2c8a283cf271b597
Reviewed-by: Lars Knoll <lars.knoll@theqtcompany.com>
---
 src/corelib/tools/qlocale.h | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'src/corelib/tools/qlocale.h')

diff --git a/src/corelib/tools/qlocale.h b/src/corelib/tools/qlocale.h
index 729fd73a5d..f64a25bd00 100644
--- a/src/corelib/tools/qlocale.h
+++ b/src/corelib/tools/qlocale.h
@@ -848,6 +848,10 @@ public:
     };
     Q_DECLARE_FLAGS(NumberOptions, NumberOption)
 
+    enum FloatingPointPrecisionOption {
+        FloatingPointShortest = -128
+    };
+
     enum CurrencySymbolFormat {
         CurrencyIsoCode,
         CurrencySymbol,
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