Re: Best way to append std::list to itself
On Thu, 2011-01-06, Paavo Helde wrote:
Jorgen Grahn <grahn+nntp@snipabacken.se> wrote in
news:slrniic2f6.t7d.grahn+nntp@frailea.sa.invalid:
Did *you* test it? How?
#include <list>
#include <iostream>
int main()
{
std::list<int> foo;
foo.push_back(1);
foo.push_back(2);
foo.push_back(3);
foo.insert(foo.end(), foo.begin(), foo.end());
for(std::list<int>::const_iterator i = foo.begin();
i!=foo.end(); ++i) {
std::cout << *i << '\n';
}
return 0;
}
In what way am I wrong? I see no infinite loop. On my system this
prints 1 2 3 1 2 3 and that's also what I'd expect.
On my system this ate up some gigabytes of memory, then the whole system
hung. Seems like nasal demons to me ;-)
What is your system? Mine is Linux and gcc, AMD64 and ppc.
I'm not saying you are mistaken or that your system has a bug; I just
want to know exactly what rule that code is violating. I found the
up-thread arguments unconvincing. (In particular, as you found out,
the suggestion "test it" was not helpful.)
/Jorgen
--
// Jorgen Grahn <grahn@ Oo o. . .
\X/ snipabacken.se> O o .
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