整理

include/boost/predef/architecture/riscv.h

@@ -0,0 +1,48 @@
+/*
+Copyright Andreas Schwab 2019
+Distributed under 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_PREDEF_ARCHITECTURE_RISCV_H
+#define BOOST_PREDEF_ARCHITECTURE_RISCV_H
+
+#include <boost/predef/version_number.h>
+#include <boost/predef/make.h>
+
+/* tag::reference[]
+= `BOOST_ARCH_RISCV`
+
+http://en.wikipedia.org/wiki/RISC-V[RISC-V] architecture.
+
+[options="header"]
+|===
+| {predef_symbol} | {predef_version}
+
+| `+__riscv+` | {predef_detection}
+|===
+*/ // end::reference[]
+
+#define BOOST_ARCH_RISCV BOOST_VERSION_NUMBER_NOT_AVAILABLE
+
+#if defined(__riscv)
+#   undef BOOST_ARCH_RISCV
+#   define BOOST_ARCH_RISCV BOOST_VERSION_NUMBER_AVAILABLE
+#endif
+
+#if BOOST_ARCH_RISCV
+#   define BOOST_ARCH_RISCV_AVAILABLE
+#endif
+
+#if BOOST_ARCH_RISCV
+#   undef BOOST_ARCH_WORD_BITS_32
+#   define BOOST_ARCH_WORD_BITS_32 BOOST_VERSION_NUMBER_AVAILABLE
+#endif
+
+#define BOOST_ARCH_RISCV_NAME "RISC-V"
+
+#endif
+
+#include <boost/predef/detail/test.h>
+BOOST_PREDEF_DECLARE_TEST(BOOST_ARCH_RISCV,BOOST_ARCH_RISCV_NAME)