http://www.skew-matrix.com/OSGQSG/
p37, Memeory Management Examples.
Misspelled "Memory" in the errata.
-----------------
p37, Memory Management Examples.
There are multiple solutions to the dilemma of how to return a Referenced object
address. The method employed in this book's example code is to return
a ref_ptr<>
storing the address, as the code below illustrates.
osg::ref_ptr<osg::Group> createGroup()
{
osg::ref_ptr<osg::Group> grp = new osg::Group;
// Return the new Group's address. This stores the Group
// address in a ref_ptr<> and places the ref_ptr<> on the
// call stack as the return value.
return grp.get();
}
Why is it
return grp.get();
rather than
return grp;
Isn't grp.get() a pointer to an osg::Group?
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