Listing 2. StrNode Copy Constructor
StrNode::StrNode ( const StrNode & srcnode )
/*
Function: StrNode copy constructor
Pre: srcnode is a valid node instance
Post: *this is a discrete copy of srcnode
srcnode is unchanged
*/
{
strptr_ = new ( char [ strlen
( srcnode.strptr_ ) + 1 ] );
assert ( strptr_ );
strcpy ( strptr_, srcnode.strptr_ );
if ( srcnode.next_ )
{
next_ = new StrNode ( *srcnode.next_ );
// indirect recursion
assert ( next_ ); // out of memory?
}
else
{
next_ = 0;
}
}
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