Changeset 3219a0 for molecuilder/src

Timestamp:

Aug 3, 2009, 4:44:16 PM (16 years ago)

Author:

Saskia Metzler <metzler@…>

Children:

a87d5e6

Parents:

b65771

Message:

new function isNull(), output operator takes const argument

Location:

molecuilder/src

Files:

• vector.cpp (modified) (2 diffs)
• vector.hpp (modified) (2 diffs)

molecuilder/src/vector.cpp

@@ -253 +253 @@
 };
 
+/** Checks whether vector has all components zero.
+ * @return true - vector is zero, false - vector is not
+ */
+bool Vector::IsNull()
+{
+  return (fabs(x[0]+x[1]+x[2]) < MYEPSILON);
+};
+
 /** Calculates the angle between this and another vector.
  * \param *y array to second vector
@@ -358 +366 @@
 };
 
-ostream& operator<<(ostream& ost,Vector& m)
+ostream& operator<<(ostream& ost, const Vector& m)
 {
         ost << "(";

molecuilder/src/vector.hpp

@@ -23 +23 @@
         double Norm() const ;
         double Angle(const Vector *y) const;
+        bool IsNull();
+
 
         void AddVector(const Vector *y);
@@ -54 +56 @@
 };
 
-ostream & operator << (ostream& ost, Vector &m);
+ostream & operator << (ostream& ost, const Vector &m);
 //Vector& operator+=(Vector& a, const Vector& b);
 //Vector& operator*=(Vector& a, const double m);