diff options
Diffstat (limited to 'doc/src/snippets')
-rw-r--r-- | doc/src/snippets/code/src_corelib_tools_qscopedpointer.cpp | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/doc/src/snippets/code/src_corelib_tools_qscopedpointer.cpp b/doc/src/snippets/code/src_corelib_tools_qscopedpointer.cpp index 7de42b7..b625eb2 100644 --- a/doc/src/snippets/code/src_corelib_tools_qscopedpointer.cpp +++ b/doc/src/snippets/code/src_corelib_tools_qscopedpointer.cpp @@ -27,6 +27,7 @@ void myFunction(bool useSubClass) //! [1] void myFunction(bool useSubClass) { + // assuming that MyClass has a virtual destructor QScopedPointer<MyClass> p(useSubClass ? new MyClass() : new MySubClass); QScopedPointer<QIODevice> device(handsOverOwnership()); @@ -80,3 +81,23 @@ private: // generate them. }; //! [4] + +//! [5] +// this QScopedPointer deletes its data using the delete[] operator: +QScopedPointer<int, QScopedPointerArrayDeleter<int> > arrayPointer(new int[42]); + +// this QScopedPointer frees its data using free(): +QScopedPointer<int, QScopedPointerPodDeleter<int> > podPointer(reinterpret_cast<int *>(malloc(42))); + +// this struct calls "myCustomDeallocator" to delete the pointer +struct ScopedPointerCustomDeleter +{ + static inline void cleanup(MyCustomClass *pointer) + { + myCustomDeallocator(pointer); + } +}; + +// QScopedPointer using a custom deleter: +QScopedPointer<MyCustomClass, ScopedPointerCustomDeleter> customPointer(new MyCustomClass); +//! [5] |