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| author | Allan Sandfeld Jensen <allan.jensen@theqtcompany.com> | 2016-06-27 15:43:33 +0200 |
|---|---|---|
| committer | Allan Sandfeld Jensen <allan.jensen@qt.io> | 2016-08-19 18:38:53 +0000 |
| commit | 9f888d2fde9c5413e5519e0914e9b13638760985 (patch) | |
| tree | 7e211a2ae70c272ea8041d5100f0c9a67b32de1b /src/corelib/global/qglobal.cpp | |
| parent | 25dd9c521fc064a71db63b110b7973225ee20c02 (diff) | |
Support C++17 fallthrough attribute
Replaces our mix of comments for annotating intended absence of break
in switches with the C++17 attribute [[fallthrough]], or its earlier
a clang extension counterpart.
Change-Id: I4b2d0b9b5e4425819c7f1bf01608093c536b6d14
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Diffstat (limited to 'src/corelib/global/qglobal.cpp')
| -rw-r--r-- | src/corelib/global/qglobal.cpp | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/src/corelib/global/qglobal.cpp b/src/corelib/global/qglobal.cpp index 03216358aa..170dd757d3 100644 --- a/src/corelib/global/qglobal.cpp +++ b/src/corelib/global/qglobal.cpp @@ -2950,6 +2950,20 @@ QString QSysInfo::machineHostName() */ /*! + \macro void Q_FALLTHROUGH() + \relates <QtGlobal> + \since 5.8 + + Can be used in switch statements at the end of case block to tell the compiler + and other developers that that the lack of a break statement is intentional. + + This is useful since a missing break statement is often a bug, and some + compilers can be configured to emit warnings when one is not found. + + \sa Q_UNREACHABLE() +*/ + +/*! \macro void Q_CHECK_PTR(void *pointer) \relates <QtGlobal> |