Re: Scope vs. point of construction for an object
On Oct 22, 10:59 pm, Alan McKenney <alan_mckenn...@yahoo.com> wrote:
The obvious approach -- use a pointer and "new" -- seems sort of ugly:
T *t_ptr = 0;
try { t_ptr = new T( /* long complicated list of constructor
arguments */ ); } catch (...) { /* stuff */ }
// use t_ptr
delete t_ptr; // don't forget to delete it
Is there a way that keeps the non-pointer syntax?
Even better would be if I could put it into an object.
Will something like this work?
#include <iostream>
#include <memory>
struct T
{
T() { throw 10; }
void pass() { std::cout << "T::pass()" << std::endl; }
};
void test1()
{
std::auto_ptr<T> t;
try {
std::auto_ptr<T> __t( new T());
t = __t;
}
catch ( ... )
{}
T* t_ptr = t.get();
if (t_ptr) {
T& obj = *t_ptr;
obj.pass(); // non-pointer syntax
}
}
int main()
{
test1();
return 0;
}
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