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cddrevs.h
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cddrevs.h
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/* header file for cdd.C and cddrevs.C
written by Komei Fukuda, fukuda@ifor.math.ethz.ch
Version 0.77, August 19, 2003
*/
/* cdd.C : C++-Implementation of the double description method for
computing all vertices and extreme rays of the polyhedron
P= {x : b - A x >= 0}.
Please read COPYING (GNU General Public Licence) and
the manual cddman.tex for detail.
*/
class topeOBJECT {
long dim;
int * sv; /* {+1,-1}^dim sign vector */
public:
topeOBJECT(long d) {long j; dim=d; sv=new int[d];for (j=1; j<=d; j++) sv[j-1]=1;}
~topeOBJECT() {delete[] sv;}
topeOBJECT(const topeOBJECT& tope);
void operator=(const topeOBJECT&);
int operator[](long i); // return the i-th component (saved as i-1 comp) of tope
friend topeOBJECT operator-(topeOBJECT, long); // reversing the sign of sv[j-1]
void fwrite(ostream&);
friend int operator==(const topeOBJECT &t1, const topeOBJECT &t2);
friend int operator!=(const topeOBJECT &t1, const topeOBJECT &t2);
friend topeOBJECT f(topeOBJECT);
friend long NeighbourIndex(topeOBJECT, topeOBJECT);
friend topeOBJECT Adj(topeOBJECT, long);
};
/* {+1,-1}^dim vector representing a full-dimentional region of
the arrangement of hyperplanes associated with Ax <= b */
// end of cddrevs.h