[linux-block.git] / include / linux / const.h

#ifndef _LINUX_CONST_H
#define _LINUX_CONST_H

#include <vdso/const.h>

/*
 * This returns a constant expression while determining if an argument is
 * a constant expression, most importantly without evaluating the argument.
 * Glory to Martin Uecker <Martin.Uecker@med.uni-goettingen.de>
 */
#define __is_constexpr(x) \
	(sizeof(int) == sizeof(*(8 ? ((void *)((long)(x) * 0l)) : (int *)8)))

#endif /* _LINUX_CONST_H */
Commit	Line	Data
2dd8a62c MY	1	#ifndef _LINUX_CONST_H
	2	#define _LINUX_CONST_H
	3
8165b57b	4	#include <vdso/const.h>
2dd8a62c	5
f747e666 RF	6	/*
	7	* This returns a constant expression while determining if an argument is
	8	* a constant expression, most importantly without evaluating the argument.
	9	* Glory to Martin Uecker <Martin.Uecker@med.uni-goettingen.de>
	10	*/
	11	#define __is_constexpr(x) \
	12	(sizeof(int) == sizeof((8 ? ((void )((long)(x) * 0l)) : (int *)8)))
	13
2dd8a62c	14	#endif /* _LINUX_CONST_H */