X-Git-Url: https://git.ucc.asn.au/?p=ipdf%2Fcode.git;a=blobdiff_plain;f=src%2Farbint.h;h=1507ba7a4e90d003330c81c1d9e07ec4e1a50da8;hp=d90a43b1d72a8ea66785fa5627f4127a065dd17d;hb=ee5287fabfb214e8f7b483cde424108270525fd7;hpb=35e78b378435e37ffdb6e53a97f6fa0998999f67

diff --git a/src/arbint.h b/src/arbint.h
index d90a43b..1507ba7 100644
--- a/src/arbint.h
+++ b/src/arbint.h
@@ -1,26 +1,78 @@
 #ifndef _ARBINT_H
 #define _ARBINT_H
 
-#include <vector>
+#include "common.h"
 
 namespace IPDF
 {
 	class Arbint
 	{
 		public:
-			Arbint(int64_t i);
+			typedef int64_t digit_t;
+		
+			Arbint(digit_t i);
+			Arbint(unsigned n, digit_t d0, ...);
+			Arbint(const std::string & str, const std::string & base="0123456789");
 			~Arbint() {}
 			Arbint(const Arbint & cpy);
+			
+			
+			inline bool Sign() const {return m_sign;}
+			inline char SignChar() const {return (m_sign) ? '-' : '+';}
+			std::string DigitStr() const;
 
-			std::string Str() const;
-		
+			std::string Str(const std::string & base="0123456789") const;
+			inline std::string Str(const char * base) const
+			{
+				return Str(std::string(base));
+			}
+			
+			Arbint & operator=(const Arbint & equ);
+			Arbint & operator+=(const Arbint & add);
+			Arbint & operator-=(const Arbint & sub);
+	
+			
+			bool operator==(const Arbint & equ) const;
+			
+			
+			inline Arbint operator+(const Arbint & add) const 
+			{
+				Arbint a(*this);
+				a += add;
+				return a;
+			}
+			inline Arbint operator-(const Arbint & add) const 
+			{
+				Arbint a(*this);
+				a -= add;
+				return a;
+			}	
+			inline bool operator!=(const Arbint & equ) const 
+			{
+				return !this->operator==(equ);
+			}
+			
+			unsigned Shrink();
 		private:		
-			std::vector<uint32_t> m_words;
+				
+			Arbint & AddBasic(const Arbint & add);
+			Arbint & SubBasic(const Arbint & sub);
+	
+			std::vector<digit_t> m_digits;
 			bool m_sign;
+			void Zero();
+
 			
 			
 			
 	};	
+
+extern "C"
+{
+	typedef int64_t digit_t;
+	digit_t add_digits(digit_t * dst, digit_t * add, digit_t size);
+	digit_t sub_digits(digit_t * dst, digit_t * add, digit_t size);
 }
 
+}
 #endif //_ARBINT_H