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/* See LICENSE file for copyright and license details. */
#include "common.h"
#ifndef TEST
extern inline void libj2_j2u_lrot(struct libj2_j2u *a, unsigned b);
/* TODO Add man page */
#else
static void
set(struct libj2_j2u *a, const char *pattern, unsigned shift)
{
unsigned i, j = (LIBJ2_J2U_BIT - (shift % LIBJ2_J2U_BIT)) % LIBJ2_J2U_BIT;
a->high = 0;
a->low = 0;
for (i = 0; i < LIBJ2_JU_BIT; i++, j++)
if (pattern[j % LIBJ2_J2U_BIT] == '1')
a->low |= (uintmax_t)1 << i;
for (i = 0; i < LIBJ2_JU_BIT; i++, j++)
if (pattern[j % LIBJ2_J2U_BIT] == '1')
a->high |= (uintmax_t)1 << i;
}
int
main(void)
{
struct libj2_j2u a, r, a_saved, expected;
char pattern[LIBJ2_J2U_BIT + 1U];
unsigned i, j, k;
srand((unsigned)time(NULL));
for (i = 0; i < 128U; i++) {
for (j = 0; j < LIBJ2_J2U_BIT; j++)
pattern[j] = '0' + (rand() < rand());
pattern[LIBJ2_J2U_BIT] = '\0';
set(&a, pattern, 0);
a_saved = a;
for (j = 0; j <= 2U * LIBJ2_J2U_BIT; j++) {
set(&expected, pattern, j);
r = a;
libj2_j2u_lrot(&r, j);
EXPECT(libj2_j2u_eq_j2u(&r, &expected));
r = (struct libj2_j2u){111, 222};
libj2_j2u_lrot_to_j2u(&a, j, &r);
EXPECT(libj2_j2u_eq_j2u(&r, &expected));
EXPECT(libj2_j2u_eq_j2u(&a, &a_saved));
r = a;
libj2_j2u_lrot_to_j2u(&r, j, &r);
EXPECT(libj2_j2u_eq_j2u(&r, &expected));
k = 2U * LIBJ2_J2U_BIT - j;
r = a;
libj2_j2u_rrot(&r, k);
EXPECT(libj2_j2u_eq_j2u(&r, &expected));
r = (struct libj2_j2u){111, 222};
libj2_j2u_rrot_to_j2u(&a, k, &r);
EXPECT(libj2_j2u_eq_j2u(&r, &expected));
EXPECT(libj2_j2u_eq_j2u(&a, &a_saved));
r = a;
libj2_j2u_rrot_to_j2u(&r, k, &r);
EXPECT(libj2_j2u_eq_j2u(&r, &expected));
}
}
return 0;
}
#endif
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