Error when deleting dynamic array c++

Question

I am getting a run time error when my program hits this code. I am sure the delete is causing it, I just don't see what is going wrong.

Here is the function: (FavShows is a class defined earlier)

void classInit()
{
    int numOfRecs;
    cout << "How many records will you enter?" << endl;
    cin >> numOfRecs;
    FavShows *m = new FavShows[numOfRecs];

    for( int i = 0; i < numOfRecs; i++)
    {
        m[i].initRec();
    }

for( int i = 0; i < numOfRecs; i++)
{
    m[i].printRec();
}
delete m;
}

The error I receive states: the error is in dbgdel.cpp ( i assume this is a memeber of one of the libs) Expression:_BLOCK_TYPE_IS_VALID(pHead->nBlockUse)

should call delete [] m

billz
– billz

2013-12-08 05:29:37 +00:00
Commented Dec 8, 2013 at 5:29 — billz
– billz, Commented Dec 8, 2013 at 5:29

Cheers and hth. - Alf · Accepted Answer · 2013-12-08 05:29:28Z

3

Simply use std::vector, avoid the pain.

For the code as given, note a new[] needs a delete[], not plain single-object delete.

With a std::vector it's much easier to just count the records entered by the user, instead of asking up-front how many. For each record inputted, use push_back to add it to the end of the vector. Then starting with an empty vector.

answered Dec 8, 2013 at 5:29

Cheers and hth. - Alf

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2 Comments

CavemanAGz Over a year ago

FACEPALM, Thanks, that fixed it, I must be getting tired!

CavemanAGz Over a year ago

I will give it a try, we havnt covered vectors yet, but our final will give extra credit if we utilize a vector. Thanks for the help

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