Re: Memory problems when deleting a vector element

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Sorry, mistake while copy pasting...

Correction:
typedef vector <entry*> tbl;

On Jun 13, 1:47 pm, newbee <c.sun...@xxxxxxxxx> wrote:
That is the actual code. It compiles fine, and most of the time if
runs fine as well. I did not write the code, but I am getting an
exception from this line. This is the trace:

MSVCRTD!_free_dbg+0x41
MFC42D!operator delete+0xf
MFC42D!CString::FreeData+0x18
MFC42D!CString::~CString+0x39
AppName!entry::~entry+0x53
AppName!entry::'scalar deleting constructor'+0x25
AppName!X::delete_owned+0xf7
....................................

delete_owned() is the function above that contains the offending
line.

Looks like the problem happens when it tries to delete the CString
func_name, but I don't know why.
While deleting the entry in the vector, I guess it might be better to
use some itertator to the vector, but that still doesn't explain my
Debug Assertion, which is either of the type
"_CrtIsValidHeapPointer(pUserData)", or "_BLOCK_TYPE_IS_VALID(pHead-

nBlockUse)"

Thanks.

On Jun 13, 1:01 pm, "Igor Tandetnik" <itandet...@xxxxxxxx> wrote:



newbee <c.sun...@xxxxxxxxx> wrote:
typedef struct {
CString func_name;
list req_list;
int owner_id;
void *p_func;
} entry;

typedef vector <entry> tbl;

class X
{...
tbl m_table;
}

In one of the member functions of Class X, occasionally, the operator
delete for CString for the "delete m_table[i]" line gives a problem.

The statement

delete m_table[i];

shouldn't even compile, since m_table[i] is not a pointer, but is of
type entry&. Show your actual code.

Also, define "gives a problem". What specificially goes wrong, and in
exactly what way?
--
With best wishes,
Igor Tandetnik

With sufficient thrust, pigs fly just fine. However, this is not
necessarily a good idea. It is hard to be sure where they are going to
land, and it could be dangerous sitting under them as they fly
overhead. -- RFC 1925- Hide quoted text -

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