/usr/include/Unidraw/transfns.h is in ivtools-dev 1.2.11a1-8.
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.
*/
/*
* Transfer function subclasses.
*/
#ifndef unidraw_transfns_h
#define unidraw_transfns_h
#include <Unidraw/transfn.h>
//: to-port transfer function
// <a href=../man3.1/transfns.html>man page</a>
class TF_2Port : public TransferFunct {
public:
virtual void Evaluate(Path* = nil);
virtual StateVar* GetInput(int index);
virtual StateVar* GetOutput(int index);
virtual void SetInput(StateVar*, int index);
virtual void SetOutput(StateVar*, int index);
virtual int Inputs();
virtual int Outputs();
virtual ClassId GetClassId();
virtual boolean IsA(ClassId);
protected:
TF_2Port();
virtual void Transfer();
virtual boolean ChangedOutput(int index = 0);
};
//: direct transfer function
// <a href=../man3.1/transfns.html>man page</a>
class TF_Direct : public TF_2Port {
public:
TF_Direct(StateVar* input = nil, StateVar* output = nil);
virtual StateVar* GetInput(int index = 0);
virtual StateVar* GetOutput(int index = 0);
virtual void SetInput(StateVar*, int index = 0);
virtual void SetOutput(StateVar*, int index = 0);
virtual int Inputs();
virtual int Outputs();
virtual TransferFunct* Copy();
virtual void Read(istream&);
virtual void Write(ostream&);
virtual ClassId GetClassId();
virtual boolean IsA(ClassId);
protected:
virtual void Transfer();
virtual boolean ChangedOutput(int index = 0);
protected:
StateVar* _input, *_output;
boolean _changed;
};
#endif
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