blender::fixed_width_int::UIntF< T, S > Struct Template Reference

#include <BLI_fixed_width_int.hh>

Public Member Functions
	UIntF ()=default
	UIntF (uint64_t value)
	UIntF (StringRefNull str, int base=10)
	operator uint64_t () const
	operator double () const
	operator float () const

Public Attributes
std::array< T, S >	v

Detailed Description

template<typename T, int S>
struct blender::fixed_width_int::UIntF< T, S >

An unsigned fixed width integer.

For some algorithms, the largest cross platform integer type (uint64_t) is not large enough. Then one has the choice to use some big-integer implementation like the one from GMP or one can use fixed-width-integers as implemented here.

Internally, this type combines multiple smaller integers into a bigger integer.

Definition at line 27 of file BLI_fixed_width_int.hh.

Constructor & Destructor Documentation

UIntF() [1/3]

template<typename T, int S>

blender::fixed_width_int::UIntF< T, S >::UIntF ( )

default

Allow default construction. Note that the value is not initialized in this case.

Referenced by operator double(), operator float(), and operator uint64_t().

UIntF() [2/3]

template<typename T, int S>

blender::fixed_width_int::UIntF< T, S >::UIntF ( uint64_t value )

inlineexplicit

Construct from a specific integer.

Definition at line 169 of file BLI_fixed_width_int.hh.

References i, T, and v.

UIntF() [3/3]

template<typename T, int S>

blender::fixed_width_int::UIntF< T, S >::UIntF ( StringRefNull str, int base = 10 )

explicit

Construct from a string.

Member Function Documentation

operator double()

template<typename T, int S>

blender::fixed_width_int::UIntF< T, S >::operator double ( ) const

inlineexplicit

Convert to floating point. This may lose precision.

Definition at line 222 of file BLI_fixed_width_int.hh.

References i, ldexp, result, T, UIntF(), and v.

operator float()

template<typename T, int S>

blender::fixed_width_int::UIntF< T, S >::operator float ( ) const

inlineexplicit

Definition at line 235 of file BLI_fixed_width_int.hh.

References float, and UIntF().

operator uint64_t()

template<typename T, int S>

blender::fixed_width_int::UIntF< T, S >::operator uint64_t ( ) const

inlineexplicit

Convert to a normal integer. Note that this may lose digits.

Definition at line 210 of file BLI_fixed_width_int.hh.

References i, result, T, UIntF(), and v.

Member Data Documentation

v

template<typename T, int S>

std::array<T, S> blender::fixed_width_int::UIntF< T, S >::v

Array of smaller integers that make up the bigger integer. The first element is the least significant digit.

Definition at line 35 of file BLI_fixed_width_int.hh.

Referenced by blender::fixed_width_int::is_zero(), operator double(), operator uint64_t(), blender::fixed_width_int::operator!=(), blender::fixed_width_int::operator*(), blender::fixed_width_int::operator+(), blender::fixed_width_int::operator-(), blender::fixed_width_int::operator<(), blender::fixed_width_int::operator<=(), blender::fixed_width_int::operator==(), blender::fixed_width_int::operator>(), blender::fixed_width_int::operator>=(), and UIntF().

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

• BLI_fixed_width_int.hh