整理

include/boost/numeric/odeint/tools/is_standalone.hpp

@@ -0,0 +1,21 @@
+//  Copyright Matt Borland 2021.
+//  Use, modification and distribution are subject to the
+//  Boost Software License, Version 1.0. (See accompanying file
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+#ifndef BOOST_NUMERIC_ODEINT_TOOLS_IS_STANDALONE_HPP
+#define BOOST_NUMERIC_ODEINT_TOOLS_IS_STANDALONE_HPP
+
+// If one or more of our required dependencies are missing assume we are
+// in standalone mode
+
+#ifdef __has_include
+#if !__has_include(<boost/config.hpp>) || !__has_include(<boost/assert.hpp>) || !__has_include(<boost/lexical_cast.hpp>) || \
+    !__has_include(<boost/throw_exception.hpp>) || !__has_include(<boost/predef/other/endian.h>)
+#   ifndef BOOST_NUMERIC_ODEINT_STANDALONE
+#       define BOOST_NUMERIC_ODEINT_STANDALONE
+#   endif
+#endif
+#endif
+
+#endif //BOOST_NUMERIC_ODEINT_TOOLS_IS_STANDALONE_HPP