Sign.h

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00001 /*
00002  * Sign.h
00003  *
00004  *  Created on: 06.04.2011
00005  *      Author: Juern
00006  */
00007 
00008 #ifndef SIGN_H_
00009 #define SIGN_H_
00010 
00011 namespace PC
00012 {
00013 
00019 typedef char Sign;
00020 const Sign ZERO = 0/*0b00*/;
00021 const Sign PLUS = 1/*0b01*/;
00022 const Sign MINUS = 2/*0b10*/;
00023 
00024 void addSigns(const Sign& op1, const Sign& op2, Sign& result, Sign& carry);
00025 int compareSigns(const Sign& op1, const Sign& op2);
00026 int signToInt(const Sign& s);
00027 Sign negateSign(const Sign& s);
00028 std::string     signToString(const Sign& s);
00029 
00030 }
00031 
00032 #endif /* SIGN_H_ */