Added a C++ built-in accelerometer class

Change-Id: I80cee788912277f06ac4bdda40261f160de0cbaa

wpilibc/wpilibC++/lib/BuiltInAccelerometer.cpp

@@ -0,0 +1,53 @@
+/*----------------------------------------------------------------------------*/
+/* Copyright (c) FIRST 2014. All Rights Reserved.                             */
+/* Open Source Software - may be modified and shared by FRC teams. The code   */
+/* must be accompanied by the FIRST BSD license file in $(WIND_BASE)/WPILib.  */
+/*----------------------------------------------------------------------------*/
+
+#include "BuiltInAccelerometer.h"
+#include "HAL/HAL.hpp"
+
+/**
+ * Constructor.
+ * @param range The range the accelerometer will measure
+ */
+BuiltInAccelerometer::BuiltInAccelerometer(Range range)
+{
+	setAccelerometerActive(false);
+	setAccelerometerRange((AccelerometerRange)range);
+	setAccelerometerActive(true);
+
+	HALReport(HALUsageReporting::kResourceType_Accelerometer, 0, 0, "Built-in accelerometer");
+}
+
+/**
+ * Destructor.
+ */
+BuiltInAccelerometer::~BuiltInAccelerometer()
+{
+	setAccelerometerActive(false);
+}
+
+/**
+ * @return The acceleration of the RoboRIO along the X axis in g-forces
+ */
+double BuiltInAccelerometer::GetX() const
+{
+	return getAccelerometerX();
+}
+
+/**
+ * @return The acceleration of the RoboRIO along the Y axis in g-forces
+ */
+double BuiltInAccelerometer::GetY() const
+{
+	return getAccelerometerY();
+}
+
+/**
+ * @return The acceleration of the RoboRIO along the Z axis in g-forces
+ */
+double BuiltInAccelerometer::GetZ() const
+{
+	return getAccelerometerZ();
+}