diff --git a/src/basics.cc b/src/basics.cc
index 56f0a2e..b0c21da 100644
--- a/src/basics.cc
+++ b/src/basics.cc
@@ -142,6 +142,27 @@ Vector3::operator-()
 }
 
 
+/*
+ * Vector3::operator== --
+ * Vector3::operator!= --
+ *
+ * Compute boolean equality and non-equality of this and the given vectors.
+ */
+bool
+Vector3::operator==(const Vector3 &rhs)
+    const
+{
+    return x == rhs.x && y == rhs.y && z == rhs.z;
+}
+
+bool
+Vector3::operator!=(const Vector3 &rhs)
+    const
+{
+    return !(*this == rhs);
+}
+
+
 /*
  * Vector3::length2 --
  *
diff --git a/src/basics.h b/src/basics.h
index cb26e16..c960281 100644
--- a/src/basics.h
+++ b/src/basics.h
@@ -28,6 +28,9 @@ struct Vector3
     Vector3 operator-(const Vector3 &rhs) const;
     Vector3 operator-() const;
 
+    bool operator==(const Vector3 &rhs) const;
+    bool operator!=(const Vector3 &rhs) const;
+
     float length2() const;
     float length() const;
     float dot(const Vector3 &v) const;