1berry/qtbase
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Update QJsonValue(qint64) docs to reflect full precision

Browse Source 
Amends commit 35adb74ddd915831789f0175423660f8e898942e (from 5.15) to
reflect the improved precision of 64-bit int when stored as a JSON
value.

Task-number: QTBUG-28560
Pick-to: 6.8 6.5
Change-Id: I07915bc190dd7696e58356143e8857f91e888c67
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
(cherry picked from commit 9be6e51a501dfbee1c058616b9e81b1731640e3e)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
(cherry picked from commit ad55e57c6e4c52e58dea87373de00e71588a49c0)
This commit is contained in:
Edward Welbourne 2025-06-02 14:20:50 +02:00 committed by Qt Cherry-pick Bot
parent 777019525e
commit fc87d35926
1 changed files with 8 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
src/corelib/serialization/qjsonvalue.cpp
View File

@ -175,9 +175,14 @@ QJsonValue::QJsonValue(int v)
/*! /*!
\overload \overload
Creates a value of type Double, with value \a v. Creates a value of type Double, with value \a v.
NOTE: the integer limits for IEEE 754 double precision data is 2^53 (-9007199254740992 to +9007199254740992).
If you pass in values outside this range expect a loss of precision to occur. This is stored internally as a 64-bit integer, so retains its full
*/ precision, as long as it is retrieved with \l toInteger(). However,
retrieving its value with \l toDouble() will lose precision unless the value
lies between ±2^53.
\sa toInteger(), toDouble()
*/
QJsonValue::QJsonValue(qint64 v) QJsonValue::QJsonValue(qint64 v)
: value(v) : value(v)
{ {