#343 GContainer.h:860: bad call to memset ?

[dcb]

clang says:

./GContainer.h:860:10: warning: destination for this 'memset' call is a pointer to class containing a dynamic class 'GURL'; vtable pointer will be overwritten [-Wdynamic-class-memaccess]

[Leon Bottou]

Not a bug. At this point the memory buffer does not yet contain
anything. The vtable pointers for the actual objects are set on the next
line when the new instruction is called.

template<class ti=""> GCONT Node *
GListImpl<ti>::newnode(const TI &elt)
{
  LNode  n = (LNode ) operator new (sizeof(LNode ));</ti></class>

if GCONTAINER_ZERO_FILL

memset((void*)n, 0, sizeof(LNode ));

endif

new ((void)&(n->val)) TI(elt);
  return (Node) n;
}

On 1/7/22 5:29 AM, dcb wrote:

---

[bugs:#343] https://sourceforge.net/p/djvu/bugs/343/
GContainer.h:860: bad call to memset ?

Status: open
Group: djview
Created: Fri Jan 07, 2022 10:29 AM UTC by dcb
Last Updated: Fri Jan 07, 2022 10:29 AM UTC
Owner: nobody

clang says:

./GContainer.h:860:10: warning: destination for this 'memset' call is
a pointer to class containing a dynamic class 'GURL'; vtable pointer
will be overwritten [-Wdynamic-class-memaccess]

---

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