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Add Q_DECL_NOTHROW to QRefCount.

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For the same reason as the previous commit (about the atomic classes),
mark these functions as never throwing an exception.

Change-Id: Idf46e41b226f54cb8658416efdf985ca40dd2952
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
This commit is contained in:
Thiago Macieira 2012-08-06 16:01:40 +02:00 committed by Qt by Nokia
parent 6bf4e448fe
commit 44e638f069
1 changed files with 8 additions and 8 deletions
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16
src/corelib/tools/qrefcount.h
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@ -55,7 +55,7 @@ namespace QtPrivate
class RefCount
{
public:
inline bool ref() {
inline bool ref() Q_DECL_NOTHROW {
int count = atomic.load();
if (count == 0) // !isSharable
return false;
@ -64,7 +64,7 @@ public:
return true;
}
inline bool deref() {
inline bool deref() Q_DECL_NOTHROW {
int count = atomic.load();
if (count == 0) // !isSharable
return false;
@ -73,7 +73,7 @@ public:
return atomic.deref();
}
bool setSharable(bool sharable)
bool setSharable(bool sharable) Q_DECL_NOTHROW
{
Q_ASSERT(!isShared());
if (sharable)
@ -82,26 +82,26 @@ public:
return atomic.testAndSetRelaxed(1, 0);
}
bool isStatic() const
bool isStatic() const Q_DECL_NOTHROW
{
// Persistent object, never deleted
return atomic.load() == -1;
}
bool isSharable() const
bool isSharable() const Q_DECL_NOTHROW
{
// Sharable === Shared ownership.
return atomic.load() != 0;
}
bool isShared() const
bool isShared() const Q_DECL_NOTHROW
{
int count = atomic.load();
return (count != 1) && (count != 0);
}
void initializeOwned() { atomic.store(1); }
void initializeUnsharable() { atomic.store(0); }
void initializeOwned() Q_DECL_NOTHROW { atomic.store(1); }
void initializeUnsharable() Q_DECL_NOTHROW { atomic.store(0); }
QBasicAtomicInt atomic;
};