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74 lines
2.8 KiB
C++
Executable File
74 lines
2.8 KiB
C++
Executable File
// Created on: 1997-03-03
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// Created by: Xavier BENVENISTE
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// Copyright (c) 1997-1999 Matra Datavision
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// Copyright (c) 1999-2012 OPEN CASCADE SAS
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//
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// The content of this file is subject to the Open CASCADE Technology Public
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// License Version 6.5 (the "License"). You may not use the content of this file
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// except in compliance with the License. Please obtain a copy of the License
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// at http://www.opencascade.org and read it completely before using this file.
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//
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// The Initial Developer of the Original Code is Open CASCADE S.A.S., having its
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// main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France.
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//
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// The Original Code and all software distributed under the License is
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// distributed on an "AS IS" basis, without warranty of any kind, and the
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// Initial Developer hereby disclaims all such warranties, including without
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// limitation, any warranties of merchantability, fitness for a particular
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// purpose or non-infringement. Please see the License for the specific terms
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// and conditions governing the rights and limitations under the License.
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#ifndef _BSplCLib_EvaluatorFunction_HeaderFile
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#define _BSplCLib_EvaluatorFunction_HeaderFile
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#ifndef _Standard_Integer_HeaderFile
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#include <Standard_Integer.hxx>
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#endif
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#ifndef _Standard_Real_HeaderFile
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#include <Standard_Real.hxx>
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#endif
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#ifndef _Standard_PrimitiveTypes_HeaderFile
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#include <Standard_PrimitiveTypes.hxx>
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#endif
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// History - C function pointer converted to a virtual class
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// in order to get rid of usage of static functions and static data
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class BSplCLib_EvaluatorFunction
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{
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public:
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//! Empty constructor
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BSplCLib_EvaluatorFunction () {}
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//! Destructor should be declared as virtual
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virtual ~BSplCLib_EvaluatorFunction () {}
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//! Function evaluation method to be defined by descendant
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virtual void Evaluate (const Standard_Integer theDerivativeRequest,
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const Standard_Real* theStartEnd,
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const Standard_Real theParameter,
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Standard_Real& theResult,
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Standard_Integer& theErrorCode) const = 0;
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//! Shortcut for function-call style usage
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void operator () (const Standard_Integer theDerivativeRequest,
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const Standard_Real* theStartEnd,
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const Standard_Real theParameter,
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Standard_Real& theResult,
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Standard_Integer& theErrorCode) const
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{
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Evaluate (theDerivativeRequest, theStartEnd, theParameter, theResult, theErrorCode);
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}
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private:
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//! Copy constructor is declared private to forbid copying
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BSplCLib_EvaluatorFunction (const BSplCLib_EvaluatorFunction&) {}
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//! Assignment operator is declared private to forbid copying
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void operator = (const BSplCLib_EvaluatorFunction&) {}
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};
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#endif
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