Differential D3568 Diff 11478 intern/cycles/util/util_static_assert.h

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intern/cycles/util/util_static_assert.h

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	#ifndef __UTIL_STATIC_ASSERT_H__			#ifndef __UTIL_STATIC_ASSERT_H__
	#define __UTIL_STATIC_ASSERT_H__			#define __UTIL_STATIC_ASSERT_H__

	CCL_NAMESPACE_BEGIN			CCL_NAMESPACE_BEGIN

	/* TODO(sergey): In theory CUDA might work with own static assert			/* TODO(sergey): In theory CUDA might work with own static assert
	* implementation since it's just pure C++.			* implementation since it's just pure C++.
	*/			*/
	#ifndef __KERNEL_GPU__			#ifdef __KERNEL_GPU__
	# if (__cplusplus > 199711L) \|\| (defined(_MSC_VER) && _MSC_VER >= 1800)
	/* C++11 has built-in static_assert() */
	# elif defined(static_assert)
	/* Some platforms might have static_assert() defined even tho their
	* C++ support wouldn't be declared to be C++11.
	*/
	# else /* C++11 or MSVC2015 */
	template <bool Test> class StaticAssertFailure;
	template <> class StaticAssertFailure<true> {};
	# define _static_assert_private_glue_impl(A, B) A ## B
	# define _static_assert_glue(A, B) _static_assert_private_glue_impl(A, B)
	# ifdef __COUNTER__
	# define static_assert(condition, message) \
	enum {_static_assert_glue(q_static_assert_result, __COUNTER__) = sizeof(StaticAssertFailure<!!(condition)>)} // NOLINT
	# else /* __COUNTER__ */
	# define static_assert(condition, message) \
	enum {_static_assert_glue(q_static_assert_result, __LINE__) = sizeof(StaticAssertFailure<!!(condition)>)} // NOLINT
	# endif /* __COUNTER__ */
	# endif /* C++11 or MSVC2015 */
	#else /* __KERNEL_GPU__ */
	# ifndef static_assert			# ifndef static_assert
	# define static_assert(statement, message)			# define static_assert(statement, message)
	# endif			# endif
	#endif /* __KERNEL_GPU__ */			#endif /* __KERNEL_GPU__ */

	/* TODO(sergey): For until C++11 is a bare minimum for us,			/* TODO(sergey): For until C++11 is a bare minimum for us,
	* we do a bit of a trickery to show meaningful message so			* we do a bit of a trickery to show meaningful message so
	* it's more or less clear what's wrong when building without			* it's more or less clear what's wrong when building without
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