diff options
Diffstat (limited to 'tests/bit.c')
| -rw-r--r-- | tests/bit.c | 108 |
1 files changed, 55 insertions, 53 deletions
diff --git a/tests/bit.c b/tests/bit.c index 1c6a4de..b944748 100644 --- a/tests/bit.c +++ b/tests/bit.c @@ -52,75 +52,77 @@ bfs_static_assert(UINTMAX_MAX == UWIDTH_MAX(UINTMAX_WIDTH)); bfs_static_assert(INTMAX_MIN == IWIDTH_MIN(INTMAX_WIDTH)); bfs_static_assert(INTMAX_MAX == IWIDTH_MAX(INTMAX_WIDTH)); -#define verify_eq(a, b) \ - bfs_verify((a) == (b), "(0x%jX) %s != %s (0x%jX)", (uintmax_t)(a), #a, #b, (uintmax_t)(b)) +#define check_eq(a, b) \ + bfs_check((a) == (b), "(0x%jX) %s != %s (0x%jX)", (uintmax_t)(a), #a, #b, (uintmax_t)(b)) bool check_bit(void) { - verify_eq(bswap((uint8_t)0x12), 0x12); - verify_eq(bswap((uint16_t)0x1234), 0x3412); - verify_eq(bswap((uint32_t)0x12345678), 0x78563412); - verify_eq(bswap((uint64_t)0x1234567812345678), 0x7856341278563412); - - verify_eq(count_ones(0x0), 0); - verify_eq(count_ones(0x1), 1); - verify_eq(count_ones(0x2), 1); - verify_eq(count_ones(0x3), 2); - verify_eq(count_ones(0x137F), 10); - - verify_eq(count_zeros(0), INT_WIDTH); - verify_eq(count_zeros(0L), LONG_WIDTH); - verify_eq(count_zeros(0LL), LLONG_WIDTH); - verify_eq(count_zeros((uint8_t)0), 8); - verify_eq(count_zeros((uint16_t)0), 16); - verify_eq(count_zeros((uint32_t)0), 32); - verify_eq(count_zeros((uint64_t)0), 64); - - verify_eq(rotate_left((uint8_t)0xA1, 4), 0x1A); - verify_eq(rotate_left((uint16_t)0x1234, 12), 0x4123); - verify_eq(rotate_left((uint32_t)0x12345678, 20), 0x67812345); - verify_eq(rotate_left((uint32_t)0x12345678, 0), 0x12345678); - - verify_eq(rotate_right((uint8_t)0xA1, 4), 0x1A); - verify_eq(rotate_right((uint16_t)0x1234, 12), 0x2341); - verify_eq(rotate_right((uint32_t)0x12345678, 20), 0x45678123); - verify_eq(rotate_right((uint32_t)0x12345678, 0), 0x12345678); + bool ret = true; + + ret &= check_eq(bswap((uint8_t)0x12), 0x12); + ret &= check_eq(bswap((uint16_t)0x1234), 0x3412); + ret &= check_eq(bswap((uint32_t)0x12345678), 0x78563412); + ret &= check_eq(bswap((uint64_t)0x1234567812345678), 0x7856341278563412); + + ret &= check_eq(count_ones(0x0), 0); + ret &= check_eq(count_ones(0x1), 1); + ret &= check_eq(count_ones(0x2), 1); + ret &= check_eq(count_ones(0x3), 2); + ret &= check_eq(count_ones(0x137F), 10); + + ret &= check_eq(count_zeros(0), INT_WIDTH); + ret &= check_eq(count_zeros(0L), LONG_WIDTH); + ret &= check_eq(count_zeros(0LL), LLONG_WIDTH); + ret &= check_eq(count_zeros((uint8_t)0), 8); + ret &= check_eq(count_zeros((uint16_t)0), 16); + ret &= check_eq(count_zeros((uint32_t)0), 32); + ret &= check_eq(count_zeros((uint64_t)0), 64); + + ret &= check_eq(rotate_left((uint8_t)0xA1, 4), 0x1A); + ret &= check_eq(rotate_left((uint16_t)0x1234, 12), 0x4123); + ret &= check_eq(rotate_left((uint32_t)0x12345678, 20), 0x67812345); + ret &= check_eq(rotate_left((uint32_t)0x12345678, 0), 0x12345678); + + ret &= check_eq(rotate_right((uint8_t)0xA1, 4), 0x1A); + ret &= check_eq(rotate_right((uint16_t)0x1234, 12), 0x2341); + ret &= check_eq(rotate_right((uint32_t)0x12345678, 20), 0x45678123); + ret &= check_eq(rotate_right((uint32_t)0x12345678, 0), 0x12345678); for (int i = 0; i < 16; ++i) { uint16_t n = (uint16_t)1 << i; for (int j = i; j < 16; ++j) { uint16_t m = (uint16_t)1 << j; uint16_t nm = n | m; - verify_eq(count_ones(nm), 1 + (n != m)); - verify_eq(count_zeros(nm), 15 - (n != m)); - verify_eq(leading_zeros(nm), 15 - j); - verify_eq(trailing_zeros(nm), i); - verify_eq(first_leading_one(nm), j + 1); - verify_eq(first_trailing_one(nm), i + 1); - verify_eq(bit_width(nm), j + 1); - verify_eq(bit_floor(nm), m); + ret &= check_eq(count_ones(nm), 1 + (n != m)); + ret &= check_eq(count_zeros(nm), 15 - (n != m)); + ret &= check_eq(leading_zeros(nm), 15 - j); + ret &= check_eq(trailing_zeros(nm), i); + ret &= check_eq(first_leading_one(nm), j + 1); + ret &= check_eq(first_trailing_one(nm), i + 1); + ret &= check_eq(bit_width(nm), j + 1); + ret &= check_eq(bit_floor(nm), m); if (n == m) { - verify_eq(bit_ceil(nm), m); - bfs_verify(has_single_bit(nm)); + ret &= check_eq(bit_ceil(nm), m); + ret &= bfs_check(has_single_bit(nm)); } else { if (j < 15) { - verify_eq(bit_ceil(nm), (m << 1)); + ret &= check_eq(bit_ceil(nm), (m << 1)); } - bfs_verify(!has_single_bit(nm)); + ret &= bfs_check(!has_single_bit(nm)); } } } - verify_eq(leading_zeros((uint16_t)0), 16); - verify_eq(trailing_zeros((uint16_t)0), 16); - verify_eq(first_leading_one(0), 0); - verify_eq(first_trailing_one(0), 0); - verify_eq(bit_width(0), 0); - verify_eq(bit_floor(0), 0); - verify_eq(bit_ceil(0), 1); + ret &= check_eq(leading_zeros((uint16_t)0), 16); + ret &= check_eq(trailing_zeros((uint16_t)0), 16); + ret &= check_eq(first_leading_one(0), 0); + ret &= check_eq(first_trailing_one(0), 0); + ret &= check_eq(bit_width(0), 0); + ret &= check_eq(bit_floor(0), 0); + ret &= check_eq(bit_ceil(0), 1); - bfs_verify(!has_single_bit(0)); - bfs_verify(!has_single_bit(UINT32_MAX)); - bfs_verify(has_single_bit((uint32_t)1 << (UINT_WIDTH - 1))); + ret &= bfs_check(!has_single_bit(0)); + ret &= bfs_check(!has_single_bit(UINT32_MAX)); + ret &= bfs_check(has_single_bit((uint32_t)1 << (UINT_WIDTH - 1))); - return true; + return ret; } |