Re: memory leak

From:
Jorgen Grahn <grahn+nntp@snipabacken.se>
Newsgroups:
comp.lang.c++
Date:
3 Mar 2013 20:48:33 GMT
Message-ID:
<slrnkj7dp0.ah7.grahn+nntp@frailea.sa.invalid>
On Sun, 2013-03-03, ephlodur wrote:

On Fri, 01 Mar 2013 12:34:19 +0000, Jorgen Grahn wrote:
I'm not sure I understand your comment below


Your code upthread (in comp.unix.programmer; I hope you noticed the
followup-to) was

struct MyData
{
  std::string msg;
  int level;
};
                           
int main( void )
{
  MyData * _m = new MyData;
                           
  _m->msg = "hello";
  _m->level = 0;
                           
  delete _m;
}

(They will also tell you you shouldn't uselessly call operator new,


The 'new' above wasn't needed. You could have just said

  MyData m;
  m.msg = "hello";
  m.level = 0;

Perhaps it was needed because of your question about memory leaks, but
it's a common mistake for Java programmers to abuse C++ new exactly
like this, so it was worth mentioning.

and
rely on constructors instead of manual initialization some time after
the object was created.)


Perhaps it's better if you explain /what/ you don't understand first.

/Jorgen

--
  // Jorgen Grahn <grahn@ Oo o. . .
\X/ snipabacken.se> O o .

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