L1MuPseudoSignedPacking Class Reference

#include <L1MuPacking.h>

Inheritance diagram for L1MuPseudoSignedPacking:

Public Member Functions
int	idxFromPacked (unsigned packed) const override
	get the value from the packed notation (+/-) More...
	L1MuPseudoSignedPacking ()
	L1MuPseudoSignedPacking (unsigned int nbits)
unsigned	packedFromIdx (int idx) const override
	get the packed notation of a value, check range More...
virtual unsigned	packedFromIdx (int idx, int sig) const
	get the packed notation of a value, check range; sets the sign separately, 1 is neg. sign(!) More...
int	signFromPacked (unsigned packed) const override
	get the (pseudo-)sign from the packed notation (0=positive, 1=negative) More...
	~L1MuPseudoSignedPacking () override
Public Member Functions inherited from L1MuPacking
virtual	~L1MuPacking ()

Private Member Functions
template<class Archive >
void	serialize (Archive &ar, const unsigned int version)

Private Attributes
unsigned int	m_nbits

Friends
class	boost::serialization::access
template<typename CondSerializationT , typename Enabled >
struct	cond::serialization::access

Detailed Description

Packing of a signed int in a bit field (pseudo-sign)

There is a -0 and a +0 in the pseudo-signed scale

Definition at line 140 of file L1MuPacking.h.

Constructor & Destructor Documentation

L1MuPseudoSignedPacking() [1/2]

L1MuPseudoSignedPacking::L1MuPseudoSignedPacking ( )

inline

Definition at line 142 of file L1MuPacking.h.

{}

~L1MuPseudoSignedPacking()

L1MuPseudoSignedPacking::~L1MuPseudoSignedPacking ( )

inlineoverride

Definition at line 143 of file L1MuPacking.h.

{};

L1MuPseudoSignedPacking() [2/2]

L1MuPseudoSignedPacking::L1MuPseudoSignedPacking ( unsigned int  nbits )

inline

Definition at line 144 of file L1MuPacking.h.

: m_nbits(nbits){};

Member Function Documentation

idxFromPacked()

int L1MuPseudoSignedPacking::idxFromPacked ( unsigned  packed ) const

inlineoverridevirtual

get the value from the packed notation (+/-)

Implements L1MuPacking.

Definition at line 150 of file L1MuPacking.h.

                                                    {
    unsigned mask = (1 << (m_nbits - 1)) - 1;  // for lower bits
    int absidx = (int)(packed & mask);
    unsigned psmask = (1 << (m_nbits - 1));
    return absidx * (((packed & psmask) == psmask) ? -1 : 1);  // pseudo sign==1 is negative
  };

References createfilelist::int, and m_nbits.

Referenced by L1MuSymmetricBinnedScale::getCenter(), and L1MuSymmetricBinnedScale::getLowEdge().

packedFromIdx() [1/2]

unsigned L1MuPseudoSignedPacking::packedFromIdx ( int  idx ) const

inlineoverridevirtual

get the packed notation of a value, check range

Implements L1MuPacking.

Definition at line 157 of file L1MuPacking.h.

                                                 {
    unsigned packed = std::abs(idx);
    unsigned maxabs = (1 << (m_nbits - 1)) - 1;
    if (packed > maxabs)
      edm::LogWarning("ScaleRangeViolation") << "L1MuPseudoSignedPacking::packedFromIdx: warning value " << idx
                                             << "exceeds " << m_nbits << "-bit range !!!";
    if (idx < 0)
      packed |= 1 << (m_nbits - 1);
    return packed;
  }

References funct::abs(), training_settings::idx, and m_nbits.

Referenced by L1MuSymmetricBinnedScale::getPacked().

packedFromIdx() [2/2]

virtual unsigned L1MuPseudoSignedPacking::packedFromIdx ( int  idx, int  sig  ) const

inlinevirtual

get the packed notation of a value, check range; sets the sign separately, 1 is neg. sign(!)

Definition at line 169 of file L1MuPacking.h.

                                                         {
    unsigned packed = std::abs(idx);
    unsigned maxabs = (1 << (m_nbits - 1)) - 1;
    if (packed > maxabs)
      edm::LogWarning("ScaleRangeViolation") << "L1MuPseudoSignedPacking::packedFromIdx: warning value " << idx
                                             << "exceeds " << m_nbits << "-bit range !!!";
    if (sig == 1)
      packed |= 1 << (m_nbits - 1);  // sig==1 is negative
    return packed;
  }

References funct::abs(), training_settings::idx, and m_nbits.

serialize()

template<class Archive >

void L1MuPseudoSignedPacking::serialize ( Archive &  ar, const unsigned int  version  )

private

signFromPacked()

int L1MuPseudoSignedPacking::signFromPacked ( unsigned  packed ) const

inlineoverridevirtual

get the (pseudo-)sign from the packed notation (0=positive, 1=negative)

Implements L1MuPacking.

Definition at line 147 of file L1MuPacking.h.

{ return (packed & (1 << (m_nbits - 1))) ? 1 : 0; };

References m_nbits.

Referenced by L1MuSymmetricBinnedScale::getCenter(), and L1MuSymmetricBinnedScale::getLowEdge().

Friends And Related Function Documentation

boost::serialization::access

friend class boost::serialization::access

friend

Definition at line 183 of file L1MuPacking.h.

cond::serialization::access

template<typename CondSerializationT , typename Enabled >

friend struct cond::serialization::access

friend

Definition at line 183 of file L1MuPacking.h.

Member Data Documentation

m_nbits

unsigned int L1MuPseudoSignedPacking::m_nbits

private

Definition at line 181 of file L1MuPacking.h.

Referenced by idxFromPacked(), packedFromIdx(), and signFromPacked().