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. More...
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. More...
	bigunsignedint (std::uintmax_t x)
	Construct from unsigned int. More...
void	print (std::ostream &s) const
	Print number in hex notation. More...
bigunsignedint< k >	operator+ (const bigunsignedint< k > &x) const
	add More...
bigunsignedint< k > &	operator+= (const bigunsignedint< k > &x)
bigunsignedint< k >	operator- (const bigunsignedint< k > &x) const
	subtract More...
bigunsignedint< k > &	operator-= (const bigunsignedint< k > &x)
bigunsignedint< k >	operator* (const bigunsignedint< k > &x) const
	multiply More...
bigunsignedint< k > &	operator*= (const bigunsignedint< k > &x)
bigunsignedint< k > &	operator++ ()
	prefix increment More...
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 More...
bigunsignedint< k > &	operator&= (const bigunsignedint< k > &x)
bigunsignedint< k >	operator^ (const bigunsignedint< k > &x) const
	bitwise exor More...
bigunsignedint< k > &	operator^= (const bigunsignedint< k > &x)
bigunsignedint< k >	operator| (const bigunsignedint< k > &x) const
	bitwise or More...
bigunsignedint< k > &	operator|= (const bigunsignedint< k > &x)
bigunsignedint< k >	operator~ () const
	bitwise complement More...
bigunsignedint< k >	operator<< (int i) const
	left shift More...
bigunsignedint< k >	operator>> (int i) const
	right shift More...
bool	operator< (const bigunsignedint< k > &x) const
	less than More...
bool	operator<= (const bigunsignedint< k > &x) const
	less than or equal More...
bool	operator> (const bigunsignedint< k > &x) const
	greater than More...
bool	operator>= (const bigunsignedint< k > &x) const
	greater or equal More...
bool	operator== (const bigunsignedint< k > &x) const
	equal More...
bool	operator!= (const bigunsignedint< k > &x) const
	not equal More...
std::uint_least32_t	touint () const
	export to other types More...
double	todouble () const
	Convert to a double. More...

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

---

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

• bigunsignedint.hh