/* Test first bit operations from stdbit.h

   type: unsigned short, unsigned int, unsigned long, unsigned long long
 */

#include <testfwk.h>

#if __STDC_VERSION_STDBIT_H__ >= 202311L
#pragma std_c23
#include <stdbit.h>
#endif

#include <limits.h>

volatile {type} i;

void
testTrailing(void)
{
#if __STDC_VERSION_STDBIT_H__ >= 202311L
	i = 0x0;
	ASSERT (stdc_first_trailing_one(i) == 0);
	ASSERT (stdc_first_trailing_zero(i) == 1);

	i = 0x1;
	ASSERT (stdc_first_trailing_one(i) == 1);
	ASSERT (stdc_first_trailing_zero(i) == 2);

	i = 0x2;
	ASSERT (stdc_first_trailing_one(i) == 2);
	ASSERT (stdc_first_trailing_zero(i) == 1);

	i = 0x3;
	ASSERT (stdc_first_trailing_one(i) == 1);
	ASSERT (stdc_first_trailing_zero(i) == 3);

	i = 0x7;
	ASSERT (stdc_first_trailing_one(i) == 1);
	ASSERT (stdc_first_trailing_zero(i) == 4);

	i = 0x8;
	ASSERT (stdc_first_trailing_one(i) == 4);
	ASSERT (stdc_first_trailing_zero(i) == 1);

	i = 0x9;
	ASSERT (stdc_first_trailing_one(i) == 1);
	ASSERT (stdc_first_trailing_zero(i) == 2);
#endif
}