L1MuSignedPackingGeneric Class Reference

#include <L1MuPacking.h>

Inheritance diagram for L1MuSignedPackingGeneric:

List of all members.

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

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Detailed Description

Definition at line 103 of file L1MuPacking.h.

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Member Function Documentation

static int L1MuSignedPackingGeneric::idxFromPacked	(	unsigned	packed,
		unsigned int	nbits
	)		[inline, static]

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

Definition at line 109 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
	)		[inline, static]

get the packed notation of a value, check range

Definition at line 111 of file L1MuPacking.h.

References UserOptions_cff::idx.

Referenced by L1MuBinnedScale::getPacked().

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

static int L1MuSignedPackingGeneric::signFromPacked	(	unsigned	packed,
		unsigned int	nbits
	)		[inline, static]

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

Definition at line 106 of file L1MuPacking.h.

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