Re: unwinding of local objects on call stack after throwing and catching an exception
On 25 Jan., 18:52, Ivan Novick <i...@0x4849.net> wrote:
Hi,
If we have a function that has a local automatic object and then it
throws an exception that is caught somewhere up the call stack .....
Does the normal destructor get called for that object? I assume it
has to or else there would be memory leaks everywhere when throwing
exceptions.
for example:
void FOO()
{
try
{
BAR();
}
catch(...)
{
// do some stuff
// according to the C++ standard, can we assume o has been
properly destructed at this point?
}
}
void BAR()
{
BigHairyObject o;
throw;
}
I presume you threw something in BAR? If not, your code does not
correspond to your question and your object is not guaranteed to be
destroyed if I remember correctly. std::terminate will be called and
clean-up is implementation defined.
Bu otherwise: Yes - of course! If your compiler does forget the clean-
up you are not using your compiler in a compliant way.
/Peter
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