Eigen::internal::meta_sqrt< Y, InfX, SupX, Done > Class Template Reference

#include <Meta.h>

Public Types
enum	{ ret = meta_sqrt<Y, NewInf, NewSup>::ret }

Private Types
enum	{ MidX = (InfX + SupX) / 2 }

Detailed Description

template<int Y, int InfX = 0, int SupX = ((Y == 1) ? 1 : Y / 2), bool Done = ((SupX - InfX) <= 1 || ((SupX * SupX <= Y) && ((SupX + 1) * (SupX + 1) > Y)))>
class Eigen::internal::meta_sqrt< Y, InfX, SupX, Done >

In short, it computes int(sqrt(Y)) with Y an integer. Usage example:

meta_sqrt<1023>::ret 

Member Enumeration Documentation

anonymous enum

template<int Y, int InfX = 0, int SupX = ((Y == 1) ? 1 : Y / 2), bool Done = ((SupX - InfX) <= 1 || ((SupX * SupX <= Y) && ((SupX + 1) * (SupX + 1) > Y)))>

anonymous enum

private

Enumerator
MidX

       {
    MidX = (InfX + SupX) / 2,
    TakeInf = MidX * MidX > Y ? 1 : 0,
    NewInf = int(TakeInf) ? InfX : int(MidX),
    NewSup = int(TakeInf) ? int(MidX) : SupX
  };

anonymous enum

template<int Y, int InfX = 0, int SupX = ((Y == 1) ? 1 : Y / 2), bool Done = ((SupX - InfX) <= 1 || ((SupX * SupX <= Y) && ((SupX + 1) * (SupX + 1) > Y)))>

anonymous enum

Enumerator
ret

{ ret = meta_sqrt<Y, NewInf, NewSup>::ret };

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

• Meta.h