Dune::bigunsignedint< k > Class Template Reference

Portable very large unsigned integers. More...

#include <dune/common/bigunsignedint.hh>

Public Types
enum	{   bits =std::numeric_limits<std::uint16_t>::digits , n =k/bits+(kbits!=0) , hexdigits =4 , bitmask =0xFFFF ,   compbitmask =0xFFFF0000 , overflowmask =0x1 }

Public Member Functions
	bigunsignedint ()
	Construct uninitialized.
template<typename Signed >
	bigunsignedint (Signed x, typename std::enable_if< std::is_integral< Signed >::value &&std::is_signed< Signed >::value >::type *=0)
	Construct from signed int.
	bigunsignedint (std::uintmax_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)
bigunsignedint< k >	operator- (const bigunsignedint< k > &x) const
	subtract
bigunsignedint< k > &	operator-= (const bigunsignedint< k > &x)
bigunsignedint< k >	operator* (const bigunsignedint< k > &x) const
	multiply
bigunsignedint< k > &	operator*= (const bigunsignedint< k > &x)
bigunsignedint< k > &	operator++ ()
	prefix increment
bigunsignedint< k >	operator/ (const bigunsignedint< k > &x) const
bigunsignedint< k > &	operator/= (const bigunsignedint< k > &x)
bigunsignedint< k >	operator% (const bigunsignedint< k > &x) const
bigunsignedint< k > &	operator%= (const bigunsignedint< k > &x)
bigunsignedint< k >	operator& (const bigunsignedint< k > &x) const
	bitwise and
bigunsignedint< k > &	operator&= (const bigunsignedint< k > &x)
bigunsignedint< k >	operator^ (const bigunsignedint< k > &x) const
	bitwise exor
bigunsignedint< k > &	operator^= (const bigunsignedint< k > &x)
bigunsignedint< k >	operator| (const bigunsignedint< k > &x) const
	bitwise or
bigunsignedint< k > &	operator|= (const bigunsignedint< k > &x)
bigunsignedint< k >	operator~ () const
	bitwise complement
bigunsignedint< k >	operator<< (int i) const
	left shift
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
std::uint_least32_t	touint () const
	export to other types
double	todouble () const
	Convert to a double.

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

anonymous enum

template<int k>

anonymous enum

Enumerator
bits
n
hexdigits
bitmask
compbitmask
overflowmask

Member Function Documentation

operator%()

template<int k>

bigunsignedint< k > Dune::bigunsignedint< k >::operator%

(

const bigunsignedint< k > &

x

)

const

modulo

Warning

This function is very slow and its usage should be prevented if possible

operator&()

template<int k>

bigunsignedint< k > Dune::bigunsignedint< k >::operator&

(

const bigunsignedint< k > &

x

)

const

bitwise and

operator*()

template<int k>

bigunsignedint< k > Dune::bigunsignedint< k >::operator*

(

const bigunsignedint< k > &

x

)

const

multiply

operator+()

template<int k>

bigunsignedint< k > Dune::bigunsignedint< k >::operator+

(

const bigunsignedint< k > &

x

)

const

add

operator-()

template<int k>

bigunsignedint< k > Dune::bigunsignedint< k >::operator-

(

const bigunsignedint< k > &

x

)

const

subtract

operator/()

template<int k>

bigunsignedint< k > Dune::bigunsignedint< k >::operator/

(

const bigunsignedint< k > &

x

)

const

divide

Warning

This function is very slow and its usage should be prevented if possible

operator^()

template<int k>

bigunsignedint< k > Dune::bigunsignedint< k >::operator^

(

const bigunsignedint< k > &

x

)

const

bitwise exor

operator|()

template<int k>

bigunsignedint< k > Dune::bigunsignedint< k >::operator|

(

const bigunsignedint< k > &

x

)

const

bitwise or

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

• bigunsignedint.hh