diff options
Diffstat (limited to 'src/corelib/global/qglobal.cpp')
| -rw-r--r-- | src/corelib/global/qglobal.cpp | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/src/corelib/global/qglobal.cpp b/src/corelib/global/qglobal.cpp index 8125161897..7d518cbcd8 100644 --- a/src/corelib/global/qglobal.cpp +++ b/src/corelib/global/qglobal.cpp @@ -2518,7 +2518,9 @@ int qrand() \list \li \c Q_PRIMITIVE_TYPE specifies that \a Type is a POD (plain old - data) type with no constructor or destructor. + data) type with no constructor or destructor, or else a type where + every bit pattern is a valid object and memcpy() creates a valid + independent copy of the object. \li \c Q_MOVABLE_TYPE specifies that \a Type has a constructor and/or a destructor but can be moved in memory using \c memcpy(). @@ -2531,6 +2533,11 @@ int qrand() \snippet doc/src/snippets/code/src_corelib_global_qglobal.cpp 38 + An example of a non-POD "primitive" type is QUuid: Even though + QUuid has constructors (and therefore isn't POD), every bit + pattern still represents a valid object, and memcpy() can be used + to create a valid independent copy of a QUuid object. + Example of a movable type: \snippet doc/src/snippets/code/src_corelib_global_qglobal.cpp 39 |