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/********************* */
/*! \file gmp_util.h
** \verbatim
** Original author: dejan
** Major contributors: mdeters
** Minor contributors (to current version): taking
** This file is part of the CVC4 prototype.
** Copyright (c) 2009, 2010 The Analysis of Computer Systems Group (ACSys)
** Courant Institute of Mathematical Sciences
** New York University
** See the file COPYING in the top-level source directory for licensing
** information.\endverbatim
**
** \brief [[ Add one-line brief description here ]]
**
** [[ Add lengthier description here ]]
** \todo document this file
**/
#ifndef __CVC4__GMP_H_
#define __CVC4__GMP_H_
#include <gmpxx.h>
namespace CVC4 {
/** Hashes the gmp integer primitive in a word by word fashion. */
inline size_t gmpz_hash(const mpz_t toHash) {
size_t hash = 0;
for (int i=0, n=mpz_size(toHash); i<n; ++i){
mp_limb_t limb = mpz_getlimbn(toHash, i);
hash = hash * 2;
hash = hash xor limb;
}
return hash;
}
}
#endif /* __CVC4__GMP_H_ */
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