/usr/include/Unidraw/Components/externview.h is in ivtools-dev 1.2.11a1-11.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* Copyright (c) 1990, 1991 Stanford University
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided
* that the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of Stanford not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. Stanford makes no representations about
* the suitability of this software for any purpose. It is provided "as is"
* without express or implied warranty.
*
* STANFORD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
* IN NO EVENT SHALL STANFORD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/*
* ExternView - external representation of component.
*/
#ifndef unidraw_components_externview_h
#define unidraw_components_externview_h
#include <Unidraw/Components/compview.h>
#include <iosfwd>
//: base class for external representation objects. with traversal subclasses.
// base class for external representation objects and subclasses for
// common traversals (PreorderView, InorderView, PostorderView).
// <p><a href=../man3.1/ExternView.html>man page</a>
class ExternView : public ComponentView {
public:
virtual boolean Emit(ostream&);
virtual boolean Definition(ostream&);
virtual ExternView* GetView(Iterator);
virtual void SetView(ExternView*, Iterator&);
virtual ClassId GetClassId();
virtual boolean IsA(ClassId);
protected:
ExternView(Component* = nil);
};
class PreorderView : public ExternView {
public:
virtual boolean Definition(ostream&);
virtual ClassId GetClassId();
virtual boolean IsA(ClassId);
protected:
PreorderView(Component* = nil);
};
class InorderView : public ExternView {
public:
virtual boolean Definition(ostream&);
virtual ClassId GetClassId();
virtual boolean IsA(ClassId);
protected:
InorderView(Component* = nil);
};
class PostorderView : public ExternView {
public:
virtual boolean Definition(ostream&);
virtual ClassId GetClassId();
virtual boolean IsA(ClassId);
protected:
PostorderView(Component* = nil);
};
#endif
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