diff --git a/wpilibc/shared/src/RobotState.cpp b/wpilibc/shared/src/RobotState.cpp
new file mode 100644
index 0000000..9ee79e5
--- /dev/null
+++ b/wpilibc/shared/src/RobotState.cpp
@@ -0,0 +1,58 @@
+/*----------------------------------------------------------------------------*/
+/* Copyright (c) FIRST 2016-2017. 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 the root directory of */
+/* the project.                                                               */
+/*----------------------------------------------------------------------------*/
+
+#include "RobotState.h"
+
+#include "Base.h"
+
+using namespace frc;
+
+std::shared_ptr<RobotStateInterface> RobotState::impl;
+
+void RobotState::SetImplementation(RobotStateInterface& i) {
+  impl = std::shared_ptr<RobotStateInterface>(
+      &i, NullDeleter<RobotStateInterface>());
+}
+
+void RobotState::SetImplementation(std::shared_ptr<RobotStateInterface> i) {
+  impl = i;
+}
+
+bool RobotState::IsDisabled() {
+  if (impl != nullptr) {
+    return impl->IsDisabled();
+  }
+  return true;
+}
+
+bool RobotState::IsEnabled() {
+  if (impl != nullptr) {
+    return impl->IsEnabled();
+  }
+  return false;
+}
+
+bool RobotState::IsOperatorControl() {
+  if (impl != nullptr) {
+    return impl->IsOperatorControl();
+  }
+  return true;
+}
+
+bool RobotState::IsAutonomous() {
+  if (impl != nullptr) {
+    return impl->IsAutonomous();
+  }
+  return false;
+}
+
+bool RobotState::IsTest() {
+  if (impl != nullptr) {
+    return impl->IsTest();
+  }
+  return false;
+}