bitcalc.c File Reference

File for giving functions of treating bits on the target of Hilbert space. More...

#include "bitcalc.h"
#include "wrapperMPI.h"

Include dependency graph for bitcalc.c:

Go to the source code of this file.

Functions
int	GetSplitBit (const int Nsite, long unsigned int *irght, long unsigned int *ilft, long unsigned int *ihfbit)
	function of getting right, left and half bits corresponding to a original Hilbert space. } More...
int	GetSplitBitByModel (const int Nsite, const int iCalcModel, long unsigned int *irght, long unsigned int *ilft, long unsigned int *ihfbit)
	function of splitting original bit into right and left spaces. More...
int	GetSplitBitForGeneralSpin (const int Nsite, long unsigned int *ihfbit, const long int *SiteToBit)
	function of getting right, left and half bits corresponding to a original space. More...
void	SplitBit (const long unsigned int ibit, const long unsigned int irght, const long unsigned int ilft, const long unsigned int ihfbit, long unsigned int *isplited_Bit_right, long unsigned int *isplited_Bit_left)
	function of splitting a original bit to right and left spaces More...
int	GetOffComp (long unsigned int *_list_2_1, long unsigned int *_list_2_2, long unsigned int _ibit, const long unsigned int _irght, const long unsigned int _ilft, const long unsigned int _ihfbit, long unsigned int *_ioffComp)
	function of getting off-diagonal component More...
int	GetOffCompGeneralSpin (const long unsigned int org_ibit, const int org_isite, const int org_ispin, const int off_ispin, long unsigned int *_ioffComp, const long int *SiteToBit, const long unsigned int *Tpow)
	function of getting off-diagonal component for general spin More...
int	ConvertToList1GeneralSpin (const long unsigned int org_ibit, const long unsigned int ihlfbit, long unsigned int *_ilist1Comp)
	function of converting component to list_1 More...
void	SgnBit_old (const long unsigned int org_bit, int *sgn)
	function of getting fermion signs (for 32bit) More...
void	SgnBit (const long unsigned int org_bit, int *sgn)
	function of getting fermion sign (64 bit) More...
int	BitCheck (const long unsigned int org_bit, const long unsigned int target_bit)
	bit check function More...
int	BitCheckGeneral (const long unsigned int org_bit, const unsigned int org_isite, const unsigned int target_ispin, const long int *SiteToBit, const long unsigned int *Tpow)
	bit check function for general spin More...
int	GetBitGeneral (const unsigned int isite, const long unsigned int org_bit, const long int *SiteToBit, const long unsigned int *Tpow)
	get bit at a site for general spin More...
int	GetLocal2Sz (const unsigned int isite, const long unsigned int org_bit, const long int *SiteToBit, const long unsigned int *Tpow)
	get 2sz at a site for general spin More...
unsigned long int	snoob (unsigned long int x)
	"finding the next higher number after a given number that has the same number of 1-bits" This method is introduced in S.H. Warren, Hacker$B!G(Bs Delight, second ed., Addison-Wesley, ISBN: 0321842685, 2012. More...
int	pop (unsigned int x)
	calculating number of 1-bits in x (32 bit) This method is introduced in S.H. Warren, Hacker$B!G(Bs Delight, second ed., Addison-Wesley, ISBN: 0321842685, 2012. More...

Detailed Description

File for giving functions of treating bits on the target of Hilbert space.

Version

0.1, 0.2

Author

Takahiro Misawa (The University of Tokyo)

Kazuyoshi Yoshimi (The University of Tokyo)

Definition in file bitcalc.c.

Function Documentation

BitCheck()

int BitCheck	(	const long unsigned int	org_bit,
		const long unsigned int	target_bit
	)

bit check function

Parameters

org_bit	original bit to check
target_bit	target bit to check

Return values

1
0

Version

0.1

Author

Takahiro Misawa (The University of Tokyo)

Kazuyoshi Yoshimi (The University of Tokyo)

Parameters

[in]	org_bit
[in]	target_bit

Definition at line 367 of file bitcalc.c.

{
   return  (org_bit >> target_bit) &1;
   // (org_bit & (2^target_bit))/2^target_bit
}

BitCheckGeneral()

int BitCheckGeneral	(	const long unsigned int	org_bit,
		const unsigned int	org_isite,
		const unsigned int	target_ispin,
		const long int *	SiteToBit,
		const long unsigned int *	Tpow
	)

bit check function for general spin

Parameters

org_bit	original bit to check
org_isite	site index (org_isite >= 1)
target_ispin	target spin to check
SiteToBit	List for getting bit at a site
Tpow	List for getting total bit at a site before

Return values

0	bit does not exists
1	bit exists

Version

0.2

Author

Kazuyoshi Yoshimi (The University of Tokyo)

Parameters

[in]	org_bit
[in]	org_isite
[in]	target_ispin
[in]	SiteToBit
[in]	Tpow

Definition at line 393 of file bitcalc.c.

References FALSE, GetBitGeneral(), and TRUE.

Referenced by expec_cisajs_SpinGCGeneral(), expec_cisajs_SpinGeneral(), expec_cisajscktalt_SpinGCGeneral(), expec_cisajscktalt_SpinGeneral(), GetOffCompGeneralSpin(), GetPairExcitedStateGeneralSpin(), GetPairExcitedStateGeneralSpinGC(), mltplyGeneralSpinGC(), SetDiagonalChemi(), SetDiagonalInterAll(), SetDiagonalTEChemi(), SetDiagonalTEInterAll(), SetDiagonalTETransfer(), X_child_CisAisCjuAju_GeneralSpin_MPIdouble(), X_child_CisAisCjuAju_GeneralSpin_MPIsingle(), X_GC_child_AisCis_GeneralSpin_MPIdouble(), X_GC_child_CisAis_GeneralSpin_MPIdouble(), X_GC_child_CisAisCjuAju_GeneralSpin_MPIdouble(), X_GC_child_CisAisCjuAju_GeneralSpin_MPIsingle(), X_GC_child_CisAisCjuAjv_GeneralSpin_MPIdouble(), X_GC_child_CisAisCjuAjv_GeneralSpin_MPIsingle(), X_GC_child_CisAitCjuAju_GeneralSpin_MPIdouble(), and X_GC_child_CisAitCjuAju_GeneralSpin_MPIsingle().

{

  if(GetBitGeneral(org_isite, org_bit, SiteToBit, Tpow) !=target_ispin){
    return FALSE;
  }
  return TRUE;
}

Here is the call graph for this function:

Here is the caller graph for this function:

ConvertToList1GeneralSpin()

int ConvertToList1GeneralSpin	(	const long unsigned int	org_ibit,
		const long unsigned int	ihlfbit,
		long unsigned int *	_ilist1Comp
	)

function of converting component to list_1

Parameters

org_ibit	a original bit
ihlfbit	a split bit for general spin
_ilist1Comp	a component converted to list_1

Version

0.2

Author

Kazuyoshi Yoshimi (The University of Tokyo)

Parameters

[in]	org_ibit
[in]	ihlfbit
[out]	_ilist1Comp

Definition at line 285 of file bitcalc.c.

References FALSE, list_2_1, list_2_2, and TRUE.

Referenced by expec_cisajscktalt_SpinGeneral(), GetPairExcitedStateGeneralSpin(), makeHam(), mltplyGeneralSpin(), totalspin_Spin(), X_child_CisAit_GeneralSpin_MPIdouble(), X_child_CisAitCjuAjv_GeneralSpin_MPIdouble(), and X_child_CisAitCjuAjv_GeneralSpin_MPIsingle().

{
  long unsigned int ia, ib;
  long unsigned int tmp_list;
  ia=org_ibit%ihlfbit;
  ib=org_ibit/ihlfbit;
  if(list_2_1[ia]*list_2_2[ib]==0){
    *_ilist1Comp=0;
    return FALSE;
  }
  *_ilist1Comp = list_2_1[ia] + list_2_2[ib] - 2;
  return TRUE;
}

Here is the caller graph for this function:

GetBitGeneral()

int GetBitGeneral	(	const unsigned int	isite,
		const long unsigned int	org_bit,
		const long int *	SiteToBit,
		const long unsigned int *	Tpow
	)

get bit at a site for general spin

Parameters

isite	site index (isite >= 1)
org_bit	original bit to check
SiteToBit	List for getting bit at a site
Tpow	List for getting total bit at a site before

Returns

bit at a site

Version

0.2

Author

Kazuyoshi Yoshimi (The University of Tokyo)

Parameters

[in]	isite
[in]	org_bit
[in]	SiteToBit
[in]	Tpow

Definition at line 422 of file bitcalc.c.

References GetLocal2Sz().

Referenced by BitCheckGeneral(), GetLocal2Sz(), totalspin_Spin(), and totalspin_SpinGC().

{
  long unsigned int tmp_bit=(org_bit/Tpow[isite-1])%SiteToBit[isite-1] ;
  return (tmp_bit);
}

Here is the call graph for this function:

Here is the caller graph for this function:

GetLocal2Sz()

int GetLocal2Sz	(	const unsigned int	isite,
		const long unsigned int	org_bit,
		const long int *	SiteToBit,
		const long unsigned int *	Tpow
	)

get 2sz at a site for general spin

Parameters

isite	site index (isite >= 1)
org_bit	original bit to check
SiteToBit	List for getting bit at a site
Tpow	List for getting total bit at a site before

Returns

2sz at isite

Version

0.2

Author

Kazuyoshi Yoshimi (The University of Tokyo)

Parameters

[in]	isite
[in]	org_bit
[in]	SiteToBit
[in]	Tpow

Definition at line 449 of file bitcalc.c.

References GetBitGeneral().

Referenced by check(), expec_cisajscktalt_SpinGeneral(), expec_energy_flct_GeneralSpin(), expec_energy_flct_GeneralSpinGC(), GetBitGeneral(), sz(), totalspin_Spin(), totalspin_SpinGC(), and totalSz_SpinGC().

{
  int TwiceSz=0;
  int bitAtSite=0;
  //get bit
  bitAtSite=GetBitGeneral(isite, org_bit, SiteToBit, Tpow);
  TwiceSz=-(SiteToBit[isite-1]-1)+2*bitAtSite; //-2S^{total}_i+2Sz_i
  return TwiceSz;
}

Here is the call graph for this function:

Here is the caller graph for this function:

GetOffComp()

int GetOffComp	(	long unsigned int *	_list_2_1,
		long unsigned int *	_list_2_2,
		long unsigned int	_ibit,
		const long unsigned int	_irght,
		const long unsigned int	_ilft,
		const long unsigned int	_ihfbit,
		long unsigned int *	_ioffComp
	)

function of getting off-diagonal component

Parameters

_list_2_1	list to right space
_list_2_2	list to left space
_ibit	a original bit
_irght	a bit to split original space into right space
_ilft	a bit to split original space into left space
_ihfbit	a half bit to split original space
_ioffComp	an off diagonal component

Version

0.1

Author

Takahiro Misawa (The University of Tokyo)

Kazuyoshi Yoshimi (The University of Tokyo)

Parameters

[in]	_list_2_1
[in]	_list_2_2
[in]	_ibit
[in]	_irght
[in]	_ilft
[in]	_ihfbit
[out]	_ioffComp

Definition at line 195 of file bitcalc.c.

References FALSE, SplitBit(), and TRUE.

Referenced by child_exchange_element(), child_exchange_spin_element(), child_pairhopp_element(), CisAjt(), totalspin_Hubbard(), totalspin_Spin(), X_Ajt(), X_Ajt_MPI(), X_child_CisAit_spin_MPIdouble(), X_child_CisAjt_MPIdouble(), X_child_CisAjt_MPIsingle(), X_child_CisAjtCkuAku_Hubbard_MPI(), X_child_CisAjtCkuAlv_Hubbard_MPI(), X_child_exchange_spin_element(), X_child_general_hopp_MPIdouble(), X_child_general_hopp_MPIsingle(), X_child_general_int_spin_MPIdouble(), X_child_general_int_spin_MPIsingle(), X_child_general_int_spin_TotalS_MPIdouble(), X_Cis(), X_Cis_MPI(), X_CisAjt(), and X_Spin_CisAit().

{
  long unsigned int ia, ib;
  SplitBit(_ibit, _irght, _ilft, _ihfbit, &ia, &ib);
/*
  *_ioffComp =_list_2_1[ia];
  *_ioffComp+=_list_2_2[ib];
*/

  //if(myrank==1)
  //printf( "DEGBUG:_ibit=%ld, _list_2_1=%ld, _list_2_2=%ld\n", _ibit, _list_2_1[ia], _list_2_2[ib]);

  if(_list_2_1[ia]*_list_2_2[ib]==0){
    *_ioffComp=0;
    return FALSE;
  }
  *_ioffComp =_list_2_1[ia]-1;
  *_ioffComp+=_list_2_2[ib]-1;

  return TRUE;
}

Here is the call graph for this function:

Here is the caller graph for this function:

GetOffCompGeneralSpin()

int GetOffCompGeneralSpin	(	const long unsigned int	org_ibit,
		const int	org_isite,
		const int	org_ispin,
		const int	off_ispin,
		long unsigned int *	_ioffComp,
		const long int *	SiteToBit,
		const long unsigned int *	Tpow
	)

function of getting off-diagonal component for general spin

Parameters

org_ibit	a original bit
org_isite	a target site
org_ispin	a target spin to delete.
off_ispin	a target spin to create.
_ioffComp	a generated bit
SiteToBit	List for getting bit at a site
Tpow	List for getting total bit at a site before

Return values

FALSE	off-diagonal component does not exist
TRUE	off-diagonal component exists

Version

0.2

Author

Kazuyoshi Yoshimi (The University of Tokyo)

Parameters

[in]	org_ibit
[in]	org_isite
[in]	org_ispin
[in]	off_ispin
[out]	_ioffComp
[in]	SiteToBit
[in]	Tpow

Definition at line 243 of file bitcalc.c.

References BitCheckGeneral(), FALSE, and TRUE.

Referenced by expec_cisajs_SpinGCGeneral(), expec_cisajscktalt_SpinGCGeneral(), expec_cisajscktalt_SpinGeneral(), GetPairExcitedStateGeneralSpin(), GetPairExcitedStateGeneralSpinGC(), makeHam(), mltplyGeneralSpin(), mltplyGeneralSpinGC(), totalspin_Spin(), totalspin_SpinGC(), X_child_CisAit_GeneralSpin_MPIdouble(), X_child_CisAitCjuAjv_GeneralSpin_MPIdouble(), X_child_CisAitCjuAjv_GeneralSpin_MPIsingle(), X_GC_child_CisAisCjuAjv_GeneralSpin_MPIdouble(), X_GC_child_CisAisCjuAjv_GeneralSpin_MPIsingle(), X_GC_child_CisAit_GeneralSpin_MPIdouble(), X_GC_child_CisAitCjuAju_GeneralSpin_MPIdouble(), X_GC_child_CisAitCjuAju_GeneralSpin_MPIsingle(), X_GC_child_CisAitCjuAjv_GeneralSpin_MPIdouble(), and X_GC_child_CisAitCjuAjv_GeneralSpin_MPIsingle().

{
  if(off_ispin>SiteToBit[org_isite-1]-1 ||
     off_ispin<0                      ||
     org_ispin>SiteToBit[org_isite-1]-1 ||
     org_ispin <0){
    *_ioffComp=0;
    return FALSE;
  }
  if(BitCheckGeneral(org_ibit, org_isite, org_ispin, SiteToBit, Tpow) == FALSE){
    *_ioffComp=0;
    return FALSE;
  }
  
  //delete org_ispin and create off_ispin
  long int tmp_off=0;
  tmp_off=(long int)(off_ispin-org_ispin);
  tmp_off *=Tpow[org_isite-1];
  tmp_off +=org_ibit;
  *_ioffComp =tmp_off;
  return TRUE;
}

Here is the call graph for this function:

Here is the caller graph for this function:

GetSplitBit()

int GetSplitBit	(	const int	Nsite,
		long unsigned int *	irght,
		long unsigned int *	ilft,
		long unsigned int *	ihfbit
	)

function of getting right, left and half bits corresponding to a original Hilbert space. }

Parameters

Nsite	a total number of sites
irght	a bit to split original Hilbert space into right space \(2^{(Ns+2)/2}-1\)
ilft	a bit to split original Hilbert space into left space
ihfbit	a half bit to split original Hilbert space \(2^{(Ns+2)/2}\)

Version

0.1

Author

Takahiro Misawa (The University of Tokyo)

Kazuyoshi Yoshimi (The University of Tokyo)

Returns

Parameters

[in]	Nsite
[out]	irght
[out]	ilft
[out]	ihfbit

Definition at line 45 of file bitcalc.c.

References cErrSiteNumber.

Referenced by GetSplitBitByModel().

 {
  if(Nsite<1){
    fprintf(stderr, "%s", cErrSiteNumber);
    return -1;
  }
  *ihfbit=1;
  *ihfbit=(*ihfbit<<(unsigned long int)((Nsite+1)/2));
  *irght = *ihfbit-1;
  *ilft=1;
  *ilft = (*ilft<<(unsigned long int)Nsite)-1;
  *ilft= *ilft ^ *irght;
  return 0;
}

Here is the caller graph for this function:

GetSplitBitByModel()

int GetSplitBitByModel	(	const int	Nsite,
		const int	iCalcModel,
		long unsigned int *	irght,
		long unsigned int *	ilft,
		long unsigned int *	ihfbit
	)

function of splitting original bit into right and left spaces.

Parameters

Nsite	a total number of sites
iCalcModel	Calc model defined in CalcMode file
irght	a bit to split original space into right space
ilft	a bit to split original space into left space
ihfbit	a half bit to split original space

Version

0.1

Author

Takahiro Misawa (The University of Tokyo)

Kazuyoshi Yoshimi (The University of Tokyo)

Returns

Parameters

[in]	Nsite
[in]	iCalcModel
[out]	irght
[out]	ilft
[out]	ihfbit

Definition at line 78 of file bitcalc.c.

References cErrNoModel, and GetSplitBit().

Referenced by expec_cisajs(), expec_cisajscktaltdc(), expec_energy_flct(), GetPairExcitedState(), GetPairExcitedStateHubbard(), makeHam(), mltply(), sz(), totalspin_Hubbard(), and totalspin_Spin().

{
  int tmpNsite=Nsite;
  switch(iCalcModel){    
  case HubbardGC:
  case KondoGC:
  case HubbardNConserved:
  case Hubbard:
  case Kondo:
    tmpNsite *= 2;
    break;
  case Spin:
  case SpinGC:   
    break;
  default:
    fprintf(stderr, cErrNoModel, iCalcModel);
    return -1;
  }

  if(GetSplitBit(tmpNsite, irght, ilft, ihfbit)!=0){
    return -1;
  }
  
  return 0;
}

Here is the call graph for this function:

Here is the caller graph for this function:

GetSplitBitForGeneralSpin()

int GetSplitBitForGeneralSpin	(	const int	Nsite,
		long unsigned int *	ihfbit,
		const long int *	SiteToBit
	)

function of getting right, left and half bits corresponding to a original space.

Parameters

Nsite	a total number of sites
ihfbit	a bit to split original space

Return values

0	normally finished
-1	unnormally finished

Version

0.2

Author

Takahiro Misawa (The University of Tokyo)

Kazuyoshi Yoshimi (The University of Tokyo)

Parameters

[in]	Nsite
[out]	ihfbit
[in]	SiteToBit

Definition at line 124 of file bitcalc.c.

References cErrSiteNumber.

Referenced by check(), GetPairExcitedState(), and mltply().

 {
  int isite=0;
  long int isqrtMaxDim=1;
  long int tmpbit=1;
  
  if(Nsite<1){
    fprintf(stderr, "%s", cErrSiteNumber);
    return -1;
  }
  
  for(isite=1; isite<=Nsite ; isite++){
    isqrtMaxDim *= SiteToBit[isite-1];
  }
  isqrtMaxDim =(long int)sqrt(isqrtMaxDim);

  for(isite=1; isite<=Nsite ; isite++){
    tmpbit *= SiteToBit[isite-1];
    if(tmpbit >= isqrtMaxDim) break;
  }
  *ihfbit=tmpbit;
  return 0;
}

Here is the caller graph for this function:

pop()

int pop

(

unsigned int

x

)

calculating number of 1-bits in x (32 bit) This method is introduced in S.H. Warren, Hacker$B!G(Bs Delight, second ed., Addison-Wesley, ISBN: 0321842685, 2012.

Parameters

x

Version

2.0

Author

Takahiro Misawa (The University of Tokyo)

Definition at line 492 of file bitcalc.c.

Referenced by expec_energy_flct_HalfSpin(), expec_energy_flct_HalfSpinGC(), expec_energy_flct_Hubbard(), and expec_energy_flct_HubbardGC().

                       {
  x = x - ((x>>1) & 0x55555555);
  x = (x & 0x33333333)+ ((x>>2)& 0x33333333);
  x = (x+(x>>4)) & 0x0F0F0F0F;
  x = x+ (x>>8);
  x = x+ (x>>16);
  return  x & 0x0000003F;
}

Here is the caller graph for this function:

SgnBit()

void SgnBit	(	const long unsigned int	org_bit,
		int *	sgn
	)

function of getting fermion sign (64 bit)

Parameters

org_bit	an original bit
sgn	fermion sign

Version

0.1

Author

Takahiro Misawa (The University of Tokyo)

Kazuyoshi Yoshimi (The University of Tokyo)

Parameters

[in]	org_bit
[out]	sgn

Definition at line 339 of file bitcalc.c.

Referenced by CisAjt(), GC_Ajt(), GC_Cis(), GC_CisAjt(), X_Ajt(), X_Ajt_MPI(), X_child_CisAjt_MPIdouble(), X_child_CisAjt_MPIsingle(), X_child_CisAjtCkuAku_Hubbard_MPI(), X_child_general_hopp_MPIdouble(), X_child_general_hopp_MPIsingle(), X_Cis(), X_Cis_MPI(), X_GC_Ajt_MPI(), X_GC_child_CisAjtCkuAku_Hubbard_MPI(), X_GC_child_general_hopp_MPIdouble(), X_GC_child_general_hopp_MPIsingle(), X_GC_Cis_MPI(), and X_GC_CisAjt().

{
   long unsigned int bit;

   bit =  org_bit^(org_bit>>1);
   bit =  bit^(bit>>2);
   bit =  bit^(bit>>4);
   bit =  bit^(bit>>8);
   bit =  bit^(bit>>16);
   bit =  bit^(bit>>32);
   *sgn    = 1-2*(bit & 1); // sgn = pm 1
}

Here is the caller graph for this function:

SgnBit_old()

void SgnBit_old	(	const long unsigned int	org_bit,
		int *	sgn
	)

function of getting fermion signs (for 32bit)

Parameters

org_bit	an original bit
sgn	fermion sign

Version

0.1

Author

Takahiro Misawa (The University of Tokyo)

Kazuyoshi Yoshimi (The University of Tokyo)

Parameters

[in]	org_bit
[out]	sgn

Definition at line 313 of file bitcalc.c.

{
   long unsigned int bit;

   bit     = org_bit^(org_bit>>1);
   bit     = (bit^(bit>>2) ) & 0x11111111;
   bit     = bit*0x11111111;
   *sgn    = 1-2*((bit>>28) & 1); // sgn = pm 1
}

snoob()

unsigned long int snoob

(

unsigned long int

x

)

"finding the next higher number after a given number that has the same number of 1-bits" This method is introduced in S.H. Warren, Hacker$B!G(Bs Delight, second ed., Addison-Wesley, ISBN: 0321842685, 2012.

Parameters

x

Version

2.0

Author

Takahiro Misawa (The University of Tokyo)

Definition at line 474 of file bitcalc.c.

Referenced by child_omp_sz_hacker(), child_omp_sz_Kondo_hacker(), child_omp_sz_spin_hacker(), and sz().

                                            {
  unsigned long int smallest, ripple, ones;
  smallest = x &(-x);
  ripple   = x+ smallest;
  ones     = x ^ ripple;
  ones     = (ones>>2)/smallest;
  return   ripple|ones;
}

Here is the caller graph for this function:

SplitBit()

void SplitBit	(	const long unsigned int	ibit,
		const long unsigned int	irght,
		const long unsigned int	ilft,
		const long unsigned int	ihfbit,
		long unsigned int *	isplited_Bit_right,
		long unsigned int *	isplited_Bit_left
	)

function of splitting a original bit to right and left spaces

Parameters

ibit	a original bit
irght	a bit to split original space into right space
ilft	a bit to split original space into left space
ihfbit	a half bit to split original space
isplited_Bit_right	a splitted bit reflected on right space
isplited_Bit_left	a splitted bit reflected on left space

Version

0.1

Author

Takahiro Misawa (The University of Tokyo)

Kazuyoshi Yoshimi (The University of Tokyo)

Parameters

[in]	ibit
[in]	irght
[in]	ilft
[in]	ihfbit
[out]	isplited_Bit_right
[out]	isplited_Bit_left

Definition at line 166 of file bitcalc.c.

Referenced by GetOffComp().

{
  *isplited_Bit_right=ibit & irght;
  *isplited_Bit_left=ibit & ilft;
  *isplited_Bit_left=*isplited_Bit_left/ihfbit;
}

Here is the caller graph for this function: