On Wed, Aug 3, 2011 at 4:20 AM, Nikki Tan <n1kk1...@gmail.com> wrote:
> Hi sqlite-users! > It's just that I'm writing a copy constructor of my own mini sqlite > wrapper, and I ended up having to do a deep copy of a sqlite3* points to a > SQLite connection. And I'm just wondering is it okay that I just do it with > memcpy(), by digging into the code for the definition of struct sqlite3 > and > count the total bytes of this struct? > Another point: memcpy() will NOT do what you want here because the sqlite3 structure dynamically allocates OTHER structures and points to them. A memcpy() will copy the pointers but not their contents. i.e. you'll have 2 copies of an sqlite3 handle which both point to (and own!) the underying memory. NEVER use memcpy() to copy non-trivial types (e.g. those which contain owned pointers). -- ----- stephan beal http://wanderinghorse.net/home/stephan/ _______________________________________________ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
