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BigNum_dll.h
83 lines (56 loc) · 2.57 KB
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BigNum_dll.h
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#ifndef BigNum_h
#define BigNum_h
//////////////////////////////////////////////////////////////////////////////////////////////////
// BigNum.h: Encapsulates bignum functionality. This implementation uses the Gnu "gmp" package.
/////////////////
// OS Includes
#include "my_gmp.h"
//////////////
// Includes
#include "LightweightTypes.h"
/////////////
// Defines
////////////////////////
// Class Declarations
//////////////////////////////////////////////////////////////////////////////////////////////////
// Class Definitions
#include "my_gmp.h"
extern "C" {
__declspec(dllexport) void mpz_clear_dll(mpz_ptr xInitMe_);
__declspec(dllexport) void mpz_init_dll(mpz_ptr xInitMe_);
__declspec(dllexport) void mpz_init_set_si_dll(mpz_ptr xInitMe_, long int iWithMe_);
__declspec(dllexport) void mpz_init_set_dll(mpz_ptr xInitMe_, mpz_srcptr xWithMe_);
__declspec(dllexport) void mpz_add_dll(mpz_ptr xAddMe_, mpz_srcptr xToMe_);
__declspec(dllexport) void mpz_mul_dll(mpz_ptr xMulMe_, mpz_srcptr xToMe_);
__declspec(dllexport) void mpz_mul_ui_dll(mpz_ptr xMulMe_, unsigned long iToMe_);
__declspec(dllexport) int mpz_cmp_dll(mpz_ptr x1_, mpz_srcptr x2_);
__declspec(dllexport) int mpz_sizeinbase_dll(mpz_ptr x_, int base_);
__declspec(dllexport) void mpz_get_str_dll(char* buf, int base_, mpz_srcptr x_);
__declspec(dllexport) void mpz_set_dll(mpz_ptr xSetMe_, mpz_srcptr xTo_);
__declspec(dllexport) void mpz_set_si_dll(mpz_ptr xSetMe_, long int iTo_);
}
class BigNum {
public:
BigNum() { mpz_init_dll(_xCount); }
BigNum(long int iInitWithMe_) { mpz_init_set_si_dll(_xCount, iInitWithMe_); }
BigNum(const BigNum& xBigNum_) { mpz_init_set_dll(_xCount, xBigNum_._xCount); }
~BigNum() { mpz_clear_dll(_xCount); }
void operator +=(const BigNum& xMe_) { mpz_add_dll(_xCount, xMe_._xCount); }
void operator *=(const BigNum& xMe_) { mpz_mul_dll(_xCount, xMe_._xCount); }
void operator *=(unsigned long iCount_) { mpz_mul_ui_dll(_xCount, iCount_); }
boolean operator >(const BigNum& xMe_) { return (mpz_cmp_dll(_xCount, xMe_._xCount)) == 1 ? 1 : 0; }
void vSet(long int iTo_) { mpz_set_si_dll(_xCount, iTo_); }
void vSet(const BigNum& xMe_) { mpz_set_dll(_xCount, xMe_._xCount); }
char* aToString() {
// Caller responsible for deleting the returned string.
int buf_size = mpz_sizeinbase_dll(_xCount, 10) + 2;
char* buffer = new char[buf_size];
mpz_get_str_dll(buffer, 10, _xCount);
return buffer;
}
private:
mpz_t _xCount;
};
//////////////////////////////////////////////////////////////////////////////////////////////////
// Inlines
#endif //BigNum_h