Thanks a lot. The object_pool approach doesn't work; it causes also a segmentation fault. The option of explicitly allocating the object does work fine. Regards, Joost ----------------------------------------
Date: Tue, 25 Mar 2008 09:28:16 -0700 To: boost-users@lists.boost.org From: watanabesj@gmail.com Subject: Re: [Boost-users] Boost Pool - error: segmentation fault
AMDG
Joost Meijles wrote:
Hi All,
I am trying to use the Boost Pool library, more specifically I am trying to use the singleton pool interface. Everything seems to work fine, till the moment I use it to create an object from a class containing a (STL) map, which results in a segmentation fault. Does anyone know why this happens, or how to work around it?
What I find also strange is that the constructor and destructor of the class doesn't seem to be called when using the pool. Is this normal behavior?
Yes.
myPool::malloc does not initialize the MyClass. You need to do so explicitly.
#include #include #include
using namespace std;
class MyClass { public: int x; vector y; map z; };
int main() { typedef boost::singleton_pool myPool;
MyClass * const t = (MyClass *) myPool::malloc(); new(t) MyClass; t->x = 1; t->y.push_back(2); t->z.insert(make_pair(3,3));//causes segmentation fault
t->~MyClass();
myPool::purge_memory(); }
In Christ, Steven Watanabe
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