diff options
Diffstat (limited to 'tests/bit.c')
| -rw-r--r-- | tests/bit.c | 100 |
1 files changed, 50 insertions, 50 deletions
diff --git a/tests/bit.c b/tests/bit.c index 7a7b0f3..cb339f4 100644 --- a/tests/bit.c +++ b/tests/bit.c @@ -1,11 +1,8 @@ // Copyright © Tavian Barnes <tavianator@tavianator.com> // SPDX-License-Identifier: 0BSD -#undef NDEBUG - #include "../src/bit.h" #include "../src/diag.h" -#include <assert.h> #include <limits.h> #include <stdint.h> #include <stdlib.h> @@ -54,68 +51,71 @@ 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)) + int main(void) { - assert(bswap((uint8_t)0x12) == 0x12); - assert(bswap((uint16_t)0x1234) == 0x3412); - assert(bswap((uint32_t)0x12345678) == 0x78563412); - assert(bswap((uint64_t)0x1234567812345678) == 0x7856341278563412); - - assert(count_ones(0x0) == 0); - assert(count_ones(0x1) == 1); - assert(count_ones(0x2) == 1); - assert(count_ones(0x3) == 2); - assert(count_ones(0x137F) == 10); - - assert(count_zeros(0) == INT_WIDTH); - assert(count_zeros(0L) == LONG_WIDTH); - assert(count_zeros(0LL) == LLONG_WIDTH); - assert(count_zeros((uint8_t)0) == 8); - assert(count_zeros((uint16_t)0) == 16); - assert(count_zeros((uint32_t)0) == 32); - assert(count_zeros((uint64_t)0) == 64); - - assert(rotate_left((uint8_t)0xA1, 4) == 0x1A); - assert(rotate_left((uint16_t)0x1234, 12) == 0x4123); - assert(rotate_left((uint32_t)0x12345678, 20) == 0x67812345); - assert(rotate_left((uint32_t)0x12345678, 0) == 0x12345678); - - assert(rotate_right((uint8_t)0xA1, 4) == 0x1A); - assert(rotate_right((uint16_t)0x1234, 12) == 0x2341); - assert(rotate_right((uint32_t)0x12345678, 20) == 0x45678123); - assert(rotate_right((uint32_t)0x12345678, 0) == 0x12345678); + 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); 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; - assert(count_ones(nm) == 1 + (n != m)); - assert(count_zeros(nm) == 15 - (n != m)); - assert(leading_zeros(nm) == 15 - j); - assert(trailing_zeros(nm) == i); - assert(first_leading_one(nm) == j + 1); - assert(first_trailing_one(nm) == i + 1); - assert(bit_width(nm) == j + 1); - assert(bit_floor(nm) == 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); if (n == m) { - assert(bit_ceil(nm) == m); - assert(has_single_bit(nm)); + verify_eq(bit_ceil(nm), m); + bfs_verify(has_single_bit(nm)); } else { if (j < 15) { - assert(bit_ceil(nm) == (m << 1)); + verify_eq(bit_ceil(nm), (m << 1)); } - assert(!has_single_bit(nm)); + bfs_verify(!has_single_bit(nm)); } } } - assert(leading_zeros((uint16_t)0) == 16); - assert(trailing_zeros((uint16_t)0) == 16); - assert(first_leading_one(0) == 0); - assert(first_trailing_one(0) == 0); - assert(bit_width(0) == 0); - assert(bit_floor(0) == 0); - assert(bit_ceil(0) == 1); + 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); return EXIT_SUCCESS; } |