itk::VariableLengthVector< TValue >::DontShrinkToFit Struct Reference

#include <itkVariableLengthVector.h>

Inheritance diagram for itk::VariableLengthVector< TValue >::DontShrinkToFit:

Collaboration diagram for itk::VariableLengthVector< TValue >::DontShrinkToFit:

Public Member Functions
bool	operator() (unsigned int newSize, unsigned int oldSize) const

Detailed Description

template<typename TValue>
struct itk::VariableLengthVector< TValue >::DontShrinkToFit

VariableLengthVector Allocation Policy: reallocate memory only when size increases. This policy, when used from VariableLengthVector::SetSize(), will reallocate the internal buffer only if the new size requested for the VariableLengthVector increases.

Returns

whether newSize is bigger than oldSize

Warning

Unlike classes like std::vector<>, VariableLengthVector has no capacity concept: the size of the VariableLengthVector is its capacity. However, this will help a class without capacity to emulate one. The consequence is that reallocations will occur with scenarios such as the following:

VariableLengthVector<...> v;
v.SetSize(42);
v.SetSize(12); // no reallocation
v.SetSize(42); // pointless reallocation (given this policy)

See also

itk::VariableLengthVector::SetSize

AlwaysReallocate

NeverReallocate

ShrinkToFit

Definition at line 223 of file itkVariableLengthVector.h.

Member Function Documentation

operator()()

template<typename TValue>

bool itk::VariableLengthVector< TValue >::DontShrinkToFit::operator() ( unsigned int  newSize, unsigned int  oldSize  ) const

inline

Definition at line 226 of file itkVariableLengthVector.h.

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The documentation for this struct was generated from the following file:

• itkVariableLengthVector.h