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Diffstat (limited to 'src/corelib/tools/qsharedpointer.cpp')
| -rw-r--r-- | src/corelib/tools/qsharedpointer.cpp | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/src/corelib/tools/qsharedpointer.cpp b/src/corelib/tools/qsharedpointer.cpp index 7dc1caf57a..167771027e 100644 --- a/src/corelib/tools/qsharedpointer.cpp +++ b/src/corelib/tools/qsharedpointer.cpp @@ -230,6 +230,13 @@ structure will be 12+8+4 = 24 bytes on 32-bit architectures, 16+16+8 = 40 bytes on 64-bit ones. + If the deleter was not specified when creating the QSharedPointer object + (i.e., if a standard \tt delete call is expected), then there's an + optimization that avoids the need to store another function pointer in + ExternalRefCountWithCustomDeleter. Instead, a template specialization makes + a direct delete call. The size of the structure, in this case, is 12+4 = 16 + bytes on 32-bit architectures, 16+8 = 24 bytes on 64-bit ones. + \section3 QtSharedPointer::ExternalRefCountWithContiguousData This class also derives from ExternalRefCountData and it is |