L1MuSignedPackingGeneric Class Reference

#include <L1MuPacking.h>

Inheritance diagram for L1MuSignedPackingGeneric:

Static Public Member Functions
static int	idxFromPacked (unsigned packed, unsigned int nbits)
	get the value from the packed notation (+/-) More...
static unsigned	packedFromIdx (int idx, unsigned int nbits)
	get the packed notation of a value, check range More...
static int	signFromPacked (unsigned packed, unsigned int nbits)
	get the sign from the packed notation (0=positive, 1=negative) More...

Additional Inherited Members
Public Member Functions inherited from L1MuPacking
virtual int	idxFromPacked (unsigned packed) const =0
	get the value from the packed notation More...
virtual unsigned	packedFromIdx (int idx) const =0
	get the packed notation of a value More...
virtual int	signFromPacked (unsigned packed) const =0
	get the sign from the packed notation (0=positive, 1=negative) More...
virtual	~L1MuPacking ()

Detailed Description

Definition at line 113 of file L1MuPacking.h.

Member Function Documentation

static int L1MuSignedPackingGeneric::idxFromPacked ( unsigned  packed, unsigned int  nbits  )

inlinestatic

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

Definition at line 119 of file L1MuPacking.h.

Referenced by L1MuBinnedScale::get_idx().

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

static unsigned L1MuSignedPackingGeneric::packedFromIdx ( int  idx, unsigned int  nbits  )

inlinestatic

get the packed notation of a value, check range

Definition at line 123 of file L1MuPacking.h.

References SiStripPI::max.

Referenced by L1MuBinnedScale::getPacked().

                                                             {
    unsigned maxabs = 1U << (nbits - 1);
    if (idx < -(int)maxabs && idx >= (int)maxabs)
      edm::LogWarning("ScaleRangeViolation")
          << "L1MuSignedPacking::packedFromIdx: warning value " << idx << "exceeds " << nbits << "-bit range !!!";
    return ~(std::numeric_limits<unsigned>::max() << nbits) & (idx < 0 ? (1U << nbits) + idx : idx);
  };

static int L1MuSignedPackingGeneric::signFromPacked ( unsigned  packed, unsigned int  nbits  )

inlinestatic

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

Definition at line 116 of file L1MuPacking.h.

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