fast_sqr< T > Struct Template Reference

Fast square for small values. More...

#include <tools.hh>

Inheritance diagram for fast_sqr< T >:

[legend]Collaboration diagram for fast_sqr< T >:

[legend]List of all members.

Public Member Functions
	fast_sqr (void)
	Constructor.
int	operator() (const T &x) const
	The function.
Public Attributes
boost::array< int, 512 >	table
	Lookup-table.

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Detailed Description

template<typename T>
struct fast_sqr< T >

Fast square for small values.

Implemented with lookup-tables.

Author:

Jan Wedekind (j.wedekind@shu.ac.uk)

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Constructor & Destructor Documentation

template<typename T> fast_sqr< T >::fast_sqr (  void   )  [inline]

Constructor. Initialises the lookup-table.

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Member Function Documentation

template<typename T> int fast_sqr< T >::operator() (  const T &  x  )  const [inline]

The function. x must be between -511 and 511. Parameters: x  value to compute square of. Returns: x*x

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

• tools.hh

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