python at mrabarnett.plus.com
Sat Mar 20 04:38:27 CET 2010
Gabriel Genellina wrote:
> En Fri, 19 Mar 2010 23:31:23 -0300, MRAB <python at mrabarnett.plus.com>
>> moerchendiser2k3 wrote:
>>> class SetPointer
>>> void *ptr;
>>> MY_LOCK lock;
>>> void SetPointer(void *p)
>>> this->ptr = p;
>> 3. You're locking, but never unlocking. The sequence should be: lock, do
>> stuff, unlock.
> Just FYI: C++ doesn't have try/finally, and such behavior is usually
> emulated using a local object. When it goes out of scope, it is
> automatically destroyed, meaning that the object destructor is called.
> Whatever you would write in a "finally" clause, in C++ goes into a
> Of course C++ guys would never say they're "emulating" try/finally,
> instead they declare RAII as *the* Only and Right Way :)
Lock() doesn't look like a declaration, but a function call (although
it's been a while since I last did C++!).
In the past I've written some C++ code where try..finally... would've
been useful... *sigh*
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