Dune Core Modules (unstable)

Dune::bigunsignedint< k > Class Template Reference

Portable very large unsigned integers. More...

#include <dune/common/bigunsignedint.hh>

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) 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 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. 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
kNumber of bits of the integer type

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

divide

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

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