v1.3增加一个简单的越障模式

v1.3/lib/FastLED/src/cpp_compat.h

@@ -0,0 +1,28 @@
+#pragma once
+
+/// @file cpp_compat.h
+/// Compatibility functions based on C++ version
+
+#ifndef __INC_CPP_COMPAT_H
+#define __INC_CPP_COMPAT_H
+
+#include "FastLED.h"
+
+#if __cplusplus <= 199711L
+
+/// Compile-time assertion checking, introduced in C++11
+/// @see https://en.cppreference.com/w/cpp/language/static_assert
+#define static_assert(expression, message)
+
+/// Declares that it is possible to evaluate a value at compile time, introduced in C++11
+/// @see https://en.cppreference.com/w/cpp/language/constexpr
+#define constexpr const
+
+#else
+
+// things that we can turn on if we're in a C++11 environment
+#endif
+
+#include "fl/register.h"
+
+#endif