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/* See LICENSE file for copyright and license details. */
#include "common.h"
#ifndef TEST
extern inline void libj2_j2u_nimply_j2u(struct libj2_j2u *a, const struct libj2_j2u *b);
/* TODO Add man page */
#else
static void
check(struct libj2_j2u *a, struct libj2_j2u *b, const struct libj2_j2u *expected)
{
struct libj2_j2u a_saved = *a, b_saved = *b, r;
r = *a;
libj2_j2u_nimply_j2u(&r, b);
EXPECT(libj2_j2u_eq_j2u(b, &b_saved));
EXPECT(libj2_j2u_eq_j2u(&r, expected));
r = *a;
libj2_j2u_nimply_j2u(&r, &r);
EXPECT(libj2_j2u_is_zero(&r));
r = (struct libj2_j2u){111, 222};
libj2_j2u_nimply_j2u_to_j2u(a, b, &r);
EXPECT(libj2_j2u_eq_j2u(a, &a_saved));
EXPECT(libj2_j2u_eq_j2u(b, &b_saved));
EXPECT(libj2_j2u_eq_j2u(&r, expected));
r = *a;
libj2_j2u_nimply_j2u_to_j2u(&r, b, &r);
EXPECT(libj2_j2u_eq_j2u(b, &b_saved));
EXPECT(libj2_j2u_eq_j2u(&r, expected));
r = *b;
libj2_j2u_nimply_j2u_to_j2u(a, &r, &r);
EXPECT(libj2_j2u_eq_j2u(a, &a_saved));
EXPECT(libj2_j2u_eq_j2u(&r, expected));
r = (struct libj2_j2u){111, 222};
libj2_j2u_nimply_j2u_to_j2u(a, a, &r);
EXPECT(libj2_j2u_eq_j2u(a, &a_saved));
EXPECT(libj2_j2u_is_zero(&r));
r = *a;
libj2_j2u_nimply_j2u_to_j2u(&r, &r, &r);
EXPECT(libj2_j2u_is_zero(&r));
if (a->high == 0U) {
r = (struct libj2_j2u){111, 222};
libj2_ju_nimply_j2u_to_j2u(a->low, b, &r);
EXPECT(libj2_j2u_eq_j2u(b, &b_saved));
EXPECT(libj2_j2u_eq_j2u(&r, expected));
r = *b;
libj2_ju_nimply_j2u_to_j2u(a->low, &r, &r);
EXPECT(libj2_j2u_eq_j2u(&r, expected));
}
if (b->high == 0U) {
r = *a;
libj2_j2u_nimply_ju(&r, b->low);
EXPECT(libj2_j2u_eq_j2u(&r, expected));
r = (struct libj2_j2u){111, 222};
libj2_j2u_nimply_ju_to_j2u(a, b->low, &r);
EXPECT(libj2_j2u_eq_j2u(a, &a_saved));
EXPECT(libj2_j2u_eq_j2u(&r, expected));
r = *a;
libj2_j2u_nimply_ju_to_j2u(&r, b->low, &r);
EXPECT(libj2_j2u_eq_j2u(&r, expected));
}
}
int
main(void)
{
unsigned truthtable[] = {0, 0, 1, 0};
unsigned i, j;
uintmax_t a_bit, b_bit, r_bit;
struct libj2_j2u a, b, r, a_saved;
srand((unsigned)time(NULL));
for (j = 0; j < 128; j++) {
a.high = a.low = 0;
b.high = b.low = 0;
r.high = r.low = 0;
for (i = 0; i < LIBJ2_J2U_BIT; i++) {
a_bit = (uintmax_t)(rand() < rand());
b_bit = (uintmax_t)(rand() < rand());
r_bit = truthtable[a_bit * 2U + b_bit];
if (i < LIBJ2_JU_BIT) {
a.low |= a_bit << i;
b.low |= b_bit << i;
r.low |= r_bit << i;
} else {
a.high |= a_bit << (i - LIBJ2_JU_BIT);
b.high |= b_bit << (i - LIBJ2_JU_BIT);
r.high |= r_bit << (i - LIBJ2_JU_BIT);
}
}
check(&a, &b, &r);
a_saved = a;
a.high = 0U;
r.high = 0U;
for (i = 0; i < LIBJ2_JU_BIT; i++) {
r_bit = truthtable[(b.high >> i) & 1U];
r.high |= r_bit << i;
}
check(&a, &b, &r);
a = a_saved;
b.high = 0U;
r.high = 0U;
for (i = 0; i < LIBJ2_JU_BIT; i++) {
r_bit = truthtable[((a.high >> i) & 1U) * 2U];
r.high |= r_bit << i;
}
check(&a, &b, &r);
r.high = 0U;
r.low = 0U;
for (i = 0; i < LIBJ2_JU_BIT; i++) {
r_bit = truthtable[((a.high >> i) & 1U) * 3U];
r.high |= r_bit << i;
r_bit = truthtable[((a.low >> i) & 1U) * 3U];
r.low |= r_bit << i;
}
check(&a, &a, &r);
}
return 0;
}
#endif
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