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// BigInt - GNU gmp integer interface // Copyright (C) 1998,1999 Colin McCormack, // see LICENSE (MD5 f5220f8f599e5e926f37cf32efe3ab68) for terms // $Id: BigInt_hh.html,v 1.1.1.1 2000/04/09 01:07:51 skeptopotamus Exp $ #ifndef BIGINT_HH #define BIGINT_HH extern "C" { #include <gmp2/gmp.h> } /** BigInt - arbitrary precision integer via the gnu gmp library */ class BigInt : public Data { protected: mpz_t _value; int base; public: BigInt(long value = 0); BigInt(const Slot &value); BigInt(const char *value); BigInt (const mpz_t &value); BigInt(const mpf_t &value); virtual ~BigInt(); Integer *asInteger(); //operator mpz_t const &() const {return _value;} mpz_t const &asGMP() const {return _value;} int asint(); // structural virtual Data *clone(void * = 0) const; virtual void check(int=0) const; // check an instance of Data // object virtual bool truth() const; // the object's truth value virtual Slot toconstruct() const; // constructor args to recreate object virtual ostream &dump(ostream& out) const; // dump the object static Slot construct(Slot &arg); // construct from constructor args virtual int order(const Slot &arg) const; // 1,0,-1 depending on order virtual bool equal(const Slot &arg) const; // equality predicate // arithmetic virtual Slot positive(); // monadic `+', absolute value virtual Slot negative(); // monadic `-', negative absolute value virtual Slot add(const Slot &arg); // dyadic `+', add virtual Slot subtract(const Slot &arg); // dyadic `-', subtract virtual Slot multiply(const Slot &arg); // dyadic `*', multiply virtual Slot divide(const Slot &arg); // dyadic '/', divide virtual Slot modulo(const Slot &arg); // dyadic '%', modulo // bitwise virtual Slot invert(); // unary '~', invert virtual Slot and(const Slot &arg); // dyadic '&', bitwise and virtual Slot xor(const Slot &arg); // dyadic '^', bitwise xor virtual Slot or(const Slot &arg); // dyadic '|', bitwise or virtual Slot lshift(const Slot &arg); // dyadic '<<', left shift virtual Slot rshift(const Slot &arg); // dyadic '>>', right shift // misc BigInt transforms to implement Builtins static BigInt *random(); // rand() Slot hamming(const Slot &arg); // Allocation interface to gmp. static void *GmpAlloc(size_t alloc_size); static void *GmpReAlloc(void *ptr, size_t old_size, size_t new_size); static void GmpDeAlloc(void *ptr, size_t size); }; #endif // Local Variables *** // c-default-style:gnu ***
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