ITK
6.0.0
Insight Toolkit
ITK
Modules
Core
Common
include
itkCompensatedSummation.h
Go to the documentation of this file.
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/*=========================================================================
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*
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* Copyright NumFOCUS
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* https://www.apache.org/licenses/LICENSE-2.0.txt
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*=========================================================================*/
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#ifndef itkCompensatedSummation_h
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#define itkCompensatedSummation_h
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#include "
itkNumericTraits.h
"
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#include "
itkConceptChecking.h
"
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namespace
itk
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{
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template
<
typename
TFloat>
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class
ITK_TEMPLATE_EXPORT
CompensatedSummation
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{
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public
:
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using
FloatType
= TFloat;
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using
AccumulateType
=
typename
NumericTraits<FloatType>::AccumulateType
;
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using
Self
=
CompensatedSummation
;
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CompensatedSummation
() =
default
;
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CompensatedSummation
(
FloatType
value);
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CompensatedSummation
(
const
Self
&) =
default
;
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Self
&
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operator=(
const
Self
&) =
default
;
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void
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AddElement(
const
FloatType
& element);
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Self
&
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operator+=(
const
FloatType
& rhs);
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Self
&
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operator+=(
const
Self
& rhs);
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Self
&
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operator-=(
const
FloatType
& rhs);
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Self
&
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operator*=(
const
FloatType
& rhs);
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Self
&
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operator/=(
const
FloatType
& rhs);
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void
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ResetToZero();
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Self
&
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operator=(
const
FloatType
& rhs);
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const
AccumulateType
&
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GetSum()
const
;
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explicit
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operator
FloatType
()
const
;
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private
:
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AccumulateType
m_Sum{};
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AccumulateType
m_Compensation{};
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// Maybe support more types in the future with template specialization.
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#ifdef ITK_USE_CONCEPT_CHECKING
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itkConceptMacro
(OnlyDefinedForFloatingPointTypes, (
itk::Concept::IsFloatingPoint<TFloat>
));
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#endif // ITK_USE_CONCEPT_CHECKING
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};
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void
ITKCommon_EXPORT
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CompensatedSummationAddElement
(
float
& compensation,
float
& sum,
const
float
element);
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void
ITKCommon_EXPORT
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CompensatedSummationAddElement
(
double
& compensation,
double
& sum,
const
double
element);
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}
// end namespace itk
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#ifndef ITK_MANUAL_INSTANTIATION
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# include "itkCompensatedSummation.hxx"
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#endif
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#endif
itk::CompensatedSummation< RealType >::FloatType
RealType FloatType
Definition:
itkCompensatedSummation.h:70
itk::CompensatedSummation
Perform more precise accumulation of floating point numbers.
Definition:
itkCompensatedSummation.h:66
itk::CompensatedSummation< RealType >::AccumulateType
typename NumericTraits< FloatType >::AccumulateType AccumulateType
Definition:
itkCompensatedSummation.h:73
itkConceptChecking.h
itk::CompensatedSummationAddElement
void ITKCommon_EXPORT CompensatedSummationAddElement(float &compensation, float &sum, const float element)
itk::Concept::IsFloatingPoint
Definition:
itkConceptChecking.h:953
itk::NumericTraits
Define additional traits for native types such as int or float.
Definition:
itkNumericTraits.h:60
itkConceptMacro
#define itkConceptMacro(name, concept)
Definition:
itkConceptChecking.h:65
itk
The "itk" namespace contains all Insight Segmentation and Registration Toolkit (ITK) classes....
Definition:
itkAnatomicalOrientation.h:29
itkNumericTraits.h
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