diff options
Diffstat (limited to 'src/corelib/serialization/qjsonvalue.cpp')
| -rw-r--r-- | src/corelib/serialization/qjsonvalue.cpp | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/src/corelib/serialization/qjsonvalue.cpp b/src/corelib/serialization/qjsonvalue.cpp index e358f18bde7..5d2e71b903d 100644 --- a/src/corelib/serialization/qjsonvalue.cpp +++ b/src/corelib/serialization/qjsonvalue.cpp @@ -175,9 +175,14 @@ QJsonValue::QJsonValue(int v) /*! \overload 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) : value(v) { |