Diff: RationalNum.h

Revision:

0:1c8f2727e9f5

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/RationalNum.h	Thu Apr 03 22:56:32 2014 +0000
@@ -0,0 +1,36 @@
+#ifndef _RATIONALNUM_H
+#define _RATIONALNUM_H
+
+#include "mbed.h"
+
+int gcd(int x, int y);
+int lcm(int x, int y);
+
+class RationalNum{
+  friend RationalNum operator + (RationalNum lhs, RationalNum rhs);
+  friend RationalNum operator - (RationalNum lhs, RationalNum rhs);
+  friend RationalNum operator * (RationalNum lhs, RationalNum rhs);
+  friend RationalNum operator / (RationalNum lhs, RationalNum rhs);
+  friend bool operator == (RationalNum lhs, RationalNum rhs);
+  friend bool operator != (RationalNum lhs, RationalNum rhs);
+  friend bool operator >= (RationalNum lhs, RationalNum rhs);
+  friend bool operator > (RationalNum lhs, RationalNum rhs);
+  friend bool operator <= (RationalNum lhs, RationalNum rhs);
+  friend bool operator < (RationalNum lhs, RationalNum rhs);
+private:
+  int numerator;
+  /*non-zero denominator*/
+  int denominator;
+public:
+  RationalNum():numerator(0),denominator(1){}
+  RationalNum(int n, int d):numerator(n),denominator(d){normalize();}
+  RationalNum(int k):numerator(k),denominator(1){}
+  RationalNum(const RationalNum &orig):numerator(orig.numerator),denominator(orig.denominator){normalize();}
+  RationalNum& operator = (const RationalNum &rhs){numerator=rhs.numerator;denominator=rhs.denominator;return *this;}
+  void print()const{printf("%d\\/%d", numerator, denominator);}
+  int getNumerator()const{return numerator;}
+  int getDenominator()const{return denominator;}
+  void normalize();
+};
+
+#endif
\ No newline at end of file