On 9/19/2013 5:43 PM, Igor Korot wrote:
If you do pass a non-NULL pointer as the last parameter, then SQLite would
allocate memory for it. You should then free said memory, or else you leak
it.
Yes, I understand that.
My question was more about re-using the variable between to calls to SQLite.
Well, you can reuse the variable *after* you free the memory it points
to. Consider:
// OK
char* p = new char[42];
delete[] p;
p = new char[84];
// Not OK
char* p = new char[42];
p = new char[84];
Your situation is the same: sqlite3_exec effectively acts as a memory
allocation routine. It's not reusing the variable per se that's a
problem, it's losing a pointer to memory that was allocated but not yet
freed.
--
Igor Tandetnik
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