bitvec.cpp File Reference

Fast and efficient bitstring class. More...

#include <openbabel/babelconfig.h>
#include <openbabel/bitvec.h>
#include <openbabel/oberror.h>
#include <cstdlib>

Include dependency graph for bitvec.cpp:


Namespaces

namespace  OpenBabel

Defines

#define LowBit(set, bit)

Functions

OBBitVec operator| (OBBitVec &bv1, OBBitVec &bv2)
OBBitVec operator & (OBBitVec &bv1, OBBitVec &bv2)
OBBitVec operator^ (OBBitVec &bv1, OBBitVec &bv2)
bool operator== (const OBBitVec &bv1, const OBBitVec &bv2)
OBBitVec operator- (OBBitVec &bv1, OBBitVec &bv2)
bool operator< (const OBBitVec &bv1, const OBBitVec &bv2)
istream & operator>> (istream &is, OBBitVec &bv)
ostream & operator<< (ostream &os, const OBBitVec &bv)
double Tanimoto (OBBitVec &, OBBitVec &)

Variables

OBERROR OBMessageHandler obErrorLog
static int bitsoff [SETWORD]

Detailed Description

Fast and efficient bitstring class.

Define Documentation

#define LowBit ( set,
bit   ) 

Value:

{register int m;                                              \
    if (set != 0)                                               \
      {                                                         \
        bit = 31;                                               \
        if (set != 0x80000000) {                                \
          if ((m = (set & 0x0000ffff))) {set = m; bit -= 16;}   \
          if ((m = (set & 0x00ff00ff))) {set = m; bit -= 8;}    \
          if ((m = (set & 0x0f0f0f0f))) {set = m; bit -= 4;}    \
          if ((m = (set & 0x33333333))) {set = m; bit -= 2;}    \
          if ((m = (set & 0x55555555))) {set = m; bit -= 1;}}}  \
    else bit = -1;}