Dune::bigunsignedint< k > Class Template Reference

Portable very large unsigned integers. More...

#include <dune/common/bigunsignedint.hh>

Public Types
enum	{   bits = std::numeric_limits<unsigned short>::digits, n = k/bits+(kbits!=0), hexdigits = 4, bitmask = 0xFFFF,   compbitmask = 0xFFFF0000, overflowmask = 0x1 }

Public Member Functions
	bigunsignedint ()
	Construct uninitialized.
	bigunsignedint (int x)
	Construct from signed int.
	bigunsignedint (std::size_t x)
	Construct from unsigned int.
void	print (std::ostream &s) const
	Print number in hex notation.
bigunsignedint< k >	operator+ (const bigunsignedint< k > &x) const
	add
bigunsignedint< k >	operator- (const bigunsignedint< k > &x) const
	subtract
bigunsignedint< k >	operator* (const bigunsignedint< k > &x) const
	multiply
bigunsignedint< k > &	operator++ ()
	prefix increment
bigunsignedint< k >	operator/ (const bigunsignedint< k > &x) const
bigunsignedint< k >	operator% (const bigunsignedint< k > &x) const
bigunsignedint< k >	operator& (const bigunsignedint< k > &x) const
	bitwise and
bigunsignedint< k >	operator^ (const bigunsignedint< k > &x) const
	bitwise exor
bigunsignedint< k >	operator| (const bigunsignedint< k > &x) const
	bitwise or
bigunsignedint< k >	operator~ () const
	bitwise komplement
bigunsignedint< k >	operator<< (int i) const
	left shift1/
bigunsignedint< k >	operator>> (int i) const
	right shift
bool	operator< (const bigunsignedint< k > &x) const
	less than
bool	operator<= (const bigunsignedint< k > &x) const
	less than or equal
bool	operator> (const bigunsignedint< k > &x) const
	greater than
bool	operator>= (const bigunsignedint< k > &x) const
	greater or equal
bool	operator== (const bigunsignedint< k > &x) const
	equal
bool	operator!= (const bigunsignedint< k > &x) const
	not equal
unsigned int	touint () const
	export to other types
double	todouble () const
	Convert to a double.

Friends
class	bigunsignedint< k/2 >
struct	std::numeric_limits< bigunsignedint< k > >
class	MPITraits< bigunsignedint< k > >

Detailed Description

template<int k>
class Dune::bigunsignedint< k >

Portable very large unsigned integers.

Implements (arbitrarily) large unsigned integers to be used as global ids in some grid managers. Size is a template parameter.

Template Parameters

k	Number of bits of the integer type

Member Enumeration Documentation

template<int k>

anonymous enum

Enumerator:

bits
n
hexdigits
bitmask
compbitmask
overflowmask

Friends And Related Function Documentation

template<int k>

friend class bigunsignedint< k/2 >

friend

template<int k>

friend class MPITraits< bigunsignedint< k > >

friend

template<int k>

friend struct std::numeric_limits< bigunsignedint< k > >

friend

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

• bigunsignedint.hh