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-rw-r--r--include/ruby/internal/static_assert.h7
1 files changed, 4 insertions, 3 deletions
diff --git a/include/ruby/internal/static_assert.h b/include/ruby/internal/static_assert.h
index d4bdadf196..30bfd3bb79 100644
--- a/include/ruby/internal/static_assert.h
+++ b/include/ruby/internal/static_assert.h
@@ -17,19 +17,20 @@
* recursively included from extension libraries written in C++.
* Do not expect for instance `__VA_ARGS__` is always available.
* We assume C99 for ruby itself but we don't assume languages of
- * extension libraries. They could be written in C++98.
+ * extension libraries. They could be written in C++98.
* @brief Defines #RBIMPL_STATIC_ASSERT.
*/
#include <assert.h>
#include "ruby/internal/has/extension.h"
#include "ruby/internal/compiler_since.h"
+#include "ruby/internal/attr/maybe_unused.h"
/** @cond INTERNAL_MACRO */
#if defined(__cplusplus) && defined(__cpp_static_assert)
# /* https://isocpp.org/std/standing-documents/sd-6-sg10-feature-test-recommendations */
# define RBIMPL_STATIC_ASSERT0 static_assert
-#elif defined(__cplusplus) && RBIMPL_COMPILER_SINCE(MSVC, 16, 0, 0)
+#elif defined(__cplusplus) && RBIMPL_COMPILER_IS(MSVC)
# define RBIMPL_STATIC_ASSERT0 static_assert
#elif defined(__INTEL_CXX11_MODE__)
@@ -71,7 +72,7 @@
#else
# define RBIMPL_STATIC_ASSERT(name, expr) \
- typedef int static_assert_ ## name ## _check[1 - 2 * !(expr)]
+ RBIMPL_ATTR_MAYBE_UNUSED() typedef int static_assert_ ## name ## _check[1 - 2 * !(expr)]
#endif
#endif /* RBIMPL_STATIC_ASSERT_H */