diff options
Diffstat (limited to 'src/corelib/tools/qrefcount.h')
| -rw-r--r-- | src/corelib/tools/qrefcount.h | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/src/corelib/tools/qrefcount.h b/src/corelib/tools/qrefcount.h index 84314b1fcc..3a8f0f3982 100644 --- a/src/corelib/tools/qrefcount.h +++ b/src/corelib/tools/qrefcount.h @@ -55,8 +55,10 @@ class RefCount public: inline bool ref() Q_DECL_NOTHROW { int count = atomic.load(); +#if QT_SUPPORTS(UNSHARABLE_CONTAINERS) if (count == 0) // !isSharable return false; +#endif if (count != -1) // !isStatic atomic.ref(); return true; @@ -64,13 +66,16 @@ public: inline bool deref() Q_DECL_NOTHROW { int count = atomic.load(); +#if QT_SUPPORTS(UNSHARABLE_CONTAINERS) if (count == 0) // !isSharable return false; +#endif if (count == -1) // isStatic return true; return atomic.deref(); } +#if QT_SUPPORTS(UNSHARABLE_CONTAINERS) bool setSharable(bool sharable) Q_DECL_NOTHROW { Q_ASSERT(!isShared()); @@ -80,17 +85,18 @@ public: return atomic.testAndSetRelaxed(1, 0); } - bool isStatic() const Q_DECL_NOTHROW - { - // Persistent object, never deleted - return atomic.load() == -1; - } - bool isSharable() const Q_DECL_NOTHROW { // Sharable === Shared ownership. return atomic.load() != 0; } +#endif + + bool isStatic() const Q_DECL_NOTHROW + { + // Persistent object, never deleted + return atomic.load() == -1; + } bool isShared() const Q_DECL_NOTHROW { |