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Full Discussion: Problem with STL's std::set container parameter to the operator << ()
Top Forums Programming Problem with STL's std::set container parameter to the operator << () Post 302622643 by Corona688 on Thursday 12th of April 2012 11:41:14 AM
Old 04-12-2012
g++ tells you exactly what to do.

Code:
$ g++ iter.cpp
iter.cpp: In function 'std::ostream& operator<<(std::ostream&, const std::set<T, C, std::allocator<_CharT> >&) [with T = A, C = std::less<A>]':
iter.cpp:40:   instantiated from here
iter.cpp:21: error: dependent-name 'std::set::const_iterator' is parsed as a non-type, but instantiation yields a type
iter.cpp:21: note: say 'typename std::set::const_iterator' if a type is meant
iter.cpp: In function 'std::ostream& operator<<(std::ostream&, const std::set<T, C, std::allocator<_CharT> >&) [with T = A, C = compA]':
iter.cpp:41:   instantiated from here
iter.cpp:21: error: dependent-name 'std::set::const_iterator' is parsed as a non-type, but instantiation yields a type
iter.cpp:21: note: say 'typename std::set::const_iterator' if a type is meant

$

Code:
template<class T, class C>
std::ostream& operator << (std::ostream& os, const set<T, C>& s)
{
    typename std::set<T,C>::const_iterator itr=s.begin();

    for (int i = 0; i < s.size(); i++) {
  //      os << *itr++ << " ";
    }

    return os;
}

Last edited by Corona688; 04-12-2012 at 12:48 PM..
 

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LEARN ABOUT DEBIAN

gtk2::treestore

Gtk2::TreeStore(3pm)					User Contributed Perl Documentation				      Gtk2::TreeStore(3pm)

NAME

       Gtk2::TreeStore - wrapper for GtkTreeStore

HIERARCHY

	 Glib::Object
	 +----Gtk2::TreeStore

INTERFACES

	 Gtk2::TreeModel
	 Gtk2::TreeDragSource
	 Gtk2::TreeDragDest
	 Gtk2::TreeSortable
	 Gtk2::Buildable

METHODS

   treestore = Gtk2::TreeStore->new (...)
       o   ... (list) of strings, package names

   treeiter = $tree_store->append ($parent)
       o   $parent (Gtk2::TreeIter or undef)

   $tree_store->clear
   $tree_store->set_column_types (...)
       o   ... (list) of strings, package names

   $tree_store->set ($iter, $col1, $val1, ...)
       o   $iter (Gtk2::TreeIter)

       o   $col1 (integer) the first column number

       o   $val1 (scalar) the first value

       o   ... (list) pairs of columns and values

   treeiter = $tree_store->insert ($parent, $position)
       o   $parent (Gtk2::TreeIter or undef)

       o   $position (integer)

   treeiter = $tree_store->insert_after ($parent, $sibling)
       o   $parent (Gtk2::TreeIter or undef)

       o   $sibling (Gtk2::TreeIter or undef)

   treeiter = $tree_store->insert_before ($parent, $sibling)
       o   $parent (Gtk2::TreeIter or undef)

       o   $sibling (Gtk2::TreeIter or undef)

   treeiter = $tree_store->insert_with_values ($parent, $position, ...)
       o   $parent (Gtk2::TreeIter or undef)

       o   $position (integer) position to insert the new row

       o   ... (list) pairs of column numbers and values

       Like doing insert followed by set, except that insert_with_values emits only the row-inserted signal, rather than row-inserted, row-
       changed, and, if the store is sorted, rows-reordered as in the multiple-operation case.	Since emitting the rows-reordered signal
       repeatedly can affect the performance of the program, insert_with_values should generally be preferred when inserting rows in a sorted tree
       store.

       Since: gtk+ 2.10

   boolean = $tree_store->is_ancestor ($iter, $descendant)
       o   $iter (Gtk2::TreeIter)

       o   $descendant (Gtk2::TreeIter)

   integer = $tree_store->iter_depth ($iter)
       o   $iter (Gtk2::TreeIter)

   boolean = $tree_store->iter_is_valid ($iter)
       o   $iter (Gtk2::TreeIter)

       Since: gtk+ 2.2

   $tree_store->move_after ($iter, $position)
       o   $iter (Gtk2::TreeIter)

       o   $position (Gtk2::TreeIter or undef)

       Since: gtk+ 2.2

   $tree_store->move_before ($iter, $position)
       o   $iter (Gtk2::TreeIter)

       o   $position (Gtk2::TreeIter or undef)

       Since: gtk+ 2.2

   treeiter = $tree_store->prepend ($parent)
       o   $parent (Gtk2::TreeIter or undef)

   boolean = $tree_store->remove ($iter)
       o   $iter (Gtk2::TreeIter)

       The return is always a boolean in the style of Gtk 2.2.x and up, even when running on Gtk 2.0.x.

   $tree_store->reorder ($parent, ...)
       o   $parent (Gtk2::TreeIter or undef)

       o   ... (list) of integer's, the new_order

       Since: gtk+ 2.2

   $tree_store->swap ($a, $b)
       o   $a (Gtk2::TreeIter)

       o   $b (Gtk2::TreeIter)

       Since: gtk+ 2.2

   $tree_store->set_value ($iter, $col1, $val1, ...)
       o   $iter (Gtk2::TreeIter)

       o   $col1 (integer) the first column number

       o   $val1 (scalar) the first value

       o   ... (list) pairs of columns and values

       Alias for Gtk2::TreeStore::set().

SEE ALSO

       Gtk2, Glib::Object

COPYRIGHT

       Copyright (C) 2003-2011 by the gtk2-perl team.

       This software is licensed under the LGPL.  See Gtk2 for a full notice.

perl v5.14.2							    2012-05-27						      Gtk2::TreeStore(3pm)
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