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#ifndef INTERNAL_STATIC_ASSERT_H /* -*- C -*- */
#define INTERNAL_STATIC_ASSERT_H
/**
* @file
* @brief C11 shim for _Static_assert.
* @author \@shyouhei
* @copyright This file is a part of the programming language Ruby.
* Permission is hereby granted, to either redistribute and/or
* modify this file, provided that the conditions mentioned in the
* file COPYING are met. Consult the file for details.
*/
#include <assert.h> /* for static_assert */
#include "compilers.h" /* for __has_extension */
#if defined(static_assert)
/* Take assert.h definition */
# define STATIC_ASSERT(name, expr) static_assert(expr, # name ": " # expr)
#elif __has_extension(c_static_assert) || GCC_VERSION_SINCE(4, 6, 0)
# define STATIC_ASSERT(name, expr) \
__extension__ _Static_assert(expr, # name ": " # expr)
#else
# define STATIC_ASSERT(name, expr) \
typedef int static_assert_ ## name ## _check[1 - 2 * !(expr)]
#endif /* static_assert */
#endif /* INTERNAL_STATIC_ASSERT_H */
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