Thread: Why am I getting a SEGV?

Hi everyone,

I'm trying to erase an array of pointers, but I get a segmentation fault.. any ideas what is happening :\

Code:

  vector<employee*> arrayEmployees; // PostfixArray of functors that will be processed.

	for (uint32_t k = 0; k < repeat; ++k) {
		while (in) { 
                 ...
                }
        ...
	}

	for (vector<employee*>::iterator i = arrayEmployees.begin(); i != arrayEmployees.end(); ++i) {
		delete *i;  
	}
	return 0;

That depends entirely on what the pointers are that you are trying to free. Did they all come from new?

Oh.. I am using new to create the object and then push them in an array. However I do this in a sepparate function, could that be a problem.

like this:

Code:

	Employee employee = NULL;
	for (uint32_t i = 0; i < MAX; ++i) {
			employee = new employee(false, post[i]);
			arrayEmployees.push_back(employee);
	}

Originally Posted by afflictedd2

Oh.. I am using new to create the object and then push them in an array. However I do this in a sepparate function, could that be a problem.

like this:

Code:

	Employee employee = NULL;
	for (uint32_t i = 0; i < MAX; ++i) {
			employee = new employee(false, post[i]);
			arrayEmployees.push_back(employee);
	}

Well, I don't see how that compiles. You can try again, with real code, but better still would be to follow Laserlight's suggestion and create a small, compilable, self-contained example that demonstrates your difficulty.

I can't post the code for the app though. Where I am working they don't want any code exposed, I'm not sure how much is too much but I don't like to risk it. Most of the time I do if it's an example of my own code, though. Well anyway, I figured out the problem.

I basically followed this example:

Code:

#include <vector>
using namespace std;

class Object
{
};

int main()
{
    vector<Object*> vpObject;
    Object* pObject;

    for (int i=0; i<5; i++) 
    {
        pObject= new Object;
        vpObject.push_back(pObject);
    }

    // delete all pointers in the vector
    while (!vpObject.empty())
    {
        // get first 'element'
        pObject = vpObject.front();
        
        // remove it from the list
        vpObject.erase(vpObject.begin());

        // delete the pointer
        delete pObject;
    }

return 0;
}