/home/bes3soft/bes3soft/Boss/7.0.2/dist/7.0.2/Reconstruction/MdcPatRec/MdcTrkRecon/MdcTrkRecon-00-03-45/MdcTrkRecon/countBits.h File Reference

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Functions
int	countbits (unsigned word)

---

Function Documentation

int countbits

(

unsigned

word

)

[inline]

Definition at line 5 of file countBits.h.

References genRecEmupikp::i.

Referenced by MdcSegPatterns::MdcSegPatterns(), and MdcSegFinder::tryPatterns().

                                    {
   const int nbit[16] = { 0, 1, 1, 2, 1, 2, 2, 3, 1, 2, 2, 3, 2, 3, 3, 4 };
   int nset=0;
   for (unsigned i=0;i<2*sizeof(unsigned);i++) { // assume char = 8 bits, i.e. two
       nset+=nbit[word&0xf];                // iterations per 'char' size object
       word>>=4;
   }
   return nset;
}

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