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98b46119e1
git-svn-id: file:///svn/mysql/tokudb-engine/tokudb-engine@54621 c7de825b-a66e-492c-adef-691d508d4ae1
286 lines
9.4 KiB
C++
286 lines
9.4 KiB
C++
#include <stdio.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include <assert.h>
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#include <sys/types.h>
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#include <tokudb_math.h>
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using namespace tokudb;
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static void test_uint_range(uint length_bits) {
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assert(uint_low_endpoint(length_bits) == 0);
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if (length_bits == 64)
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assert(uint_high_endpoint(length_bits) == ~0ULL);
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else
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assert(uint_high_endpoint(length_bits) == (1ULL<<length_bits)-1);
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}
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static void test_uint8() {
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printf("%s\n", __FUNCTION__);
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test_uint_range(8);
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bool over;
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uint8_t n;
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uint64_t m;
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for (uint64_t x = 0; x <= (1ULL<<8)-1; x++) {
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for (uint64_t y = 0; y <= (1ULL<<8)-1; y++) {
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n = uint_add(x, y, 8, &over);
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m = x + y;
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if (m > (1ULL<<8)-1)
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assert(over);
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else
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assert(!over && n == (m % 256));
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n = uint_sub(x, y, 8, &over);
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m = x - y;
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if (m > x)
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assert(over);
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else
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assert(!over && n == (m % 256));
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}
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}
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}
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static void test_uint16() {
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printf("%s\n", __FUNCTION__);
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test_uint_range(16);
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bool over;
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uint16_t n;
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uint64_t m;
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for (uint64_t x = 0; x <= (1ULL<<16)-1; x++) {
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for (uint64_t y = 0; y <= (1ULL<<16)-1; y++) {
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n = uint_add(x, y, 16, &over);
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m = x + y;
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if (m > (1ULL<<16)-1)
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assert(over);
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else
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assert(!over && n == (m % (1ULL<<16)));
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n = uint_sub(x, y, 16, &over);
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m = x - y;
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if (m > x)
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assert(over);
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else
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assert(!over && n == (m % (1ULL<<16)));
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}
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}
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}
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static void test_uint24() {
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printf("%s\n", __FUNCTION__);
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test_uint_range(24);
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bool over;
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uint64_t s;
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s = uint_add((1ULL<<24)-1, (1ULL<<24)-1, 24, &over); assert(over);
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s = uint_add((1ULL<<24)-1, 1, 24, &over); assert(over);
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s = uint_add((1ULL<<24)-1, 0, 24, &over); assert(!over && s == (1ULL<<24)-1);
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s = uint_add(0, 1, 24, &over); assert(!over && s == 1);
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s = uint_add(0, 0, 24, &over); assert(!over && s == 0);
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s = uint_sub(0, 0, 24, &over); assert(!over && s == 0);
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s = uint_sub(0, 1, 24, &over); assert(over);
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s = uint_sub(0, (1ULL<<24)-1, 24, &over); assert(over);
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s = uint_sub((1ULL<<24)-1, (1ULL<<24)-1, 24, &over); assert(!over && s == 0);
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}
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static void test_uint32() {
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printf("%s\n", __FUNCTION__);
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test_uint_range(32);
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bool over;
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uint64_t s;
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s = uint_add((1ULL<<32)-1, (1ULL<<32)-1, 32, &over); assert(over);
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s = uint_add((1ULL<<32)-1, 1, 32, &over); assert(over);
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s = uint_add((1ULL<<32)-1, 0, 32, &over); assert(!over && s == (1ULL<<32)-1);
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s = uint_add(0, 1, 32, &over); assert(!over && s == 1);
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s = uint_add(0, 0, 32, &over); assert(!over && s == 0);
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s = uint_sub(0, 0, 32, &over); assert(!over && s == 0);
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s = uint_sub(0, 1, 32, &over); assert(over);
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s = uint_sub(0, (1ULL<<32)-1, 32, &over); assert(over);
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s = uint_sub((1ULL<<32)-1, (1ULL<<32)-1, 32, &over); assert(!over && s == 0);
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}
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static void test_uint64() {
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printf("%s\n", __FUNCTION__);
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test_uint_range(64);
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bool over;
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uint64_t s;
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s = uint_add(~0ULL, ~0ULL, 64, &over); assert(over);
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s = uint_add(~0ULL, 1, 64, &over); assert(over);
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s = uint_add(~0ULL, 0, 64, &over); assert(!over && s == ~0ULL);
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s = uint_add(0, 1, 64, &over); assert(!over && s == 1);
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s = uint_add(0, 0, 64, &over); assert(!over && s == 0);
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s = uint_sub(0, 0, 64, &over); assert(!over && s == 0);
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s = uint_sub(0, 1, 64, &over); assert(over);
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s = uint_sub(0, ~0ULL, 64, &over); assert(over);
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s = uint_sub(~0ULL, ~0ULL, 64, &over); assert(!over && s == 0);
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}
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static int64_t sign_extend(uint length_bits, int64_t n) {
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return n | ~((1ULL<<(length_bits-1))-1);
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}
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static void test_int_range(uint length_bits) {
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assert(int_high_endpoint(length_bits) == (int64_t)((1ULL<<(length_bits-1))-1));
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assert(int_low_endpoint(length_bits) == sign_extend(length_bits, 1ULL<<(length_bits-1)));
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}
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static void test_int8() {
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printf("%s\n", __FUNCTION__);
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test_int_range(8);
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int64_t max = (1LL << 7);
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for (int64_t x = -max; x <= max-1; x++) {
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for (int64_t y = -max; y <= max-1; y++) {
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bool over;
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int64_t n, m;
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n = int_add(x, y, 8, &over);
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m = x + y;
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if (m > max-1)
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assert(over);
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else if (m < -max)
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assert(over);
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else
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assert(!over && n == m);
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n = int_sub(x, y, 8, &over);
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m = x - y;
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if (m > max-1)
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assert(over);
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else if (m < -max)
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assert(over);
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else
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assert(!over && n == m);
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}
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}
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}
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static void test_int16() {
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printf("%s\n", __FUNCTION__);
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test_int_range(16);
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int64_t max = (1LL << 15);
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for (int64_t x = -max; x <= max-1; x++) {
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for (int64_t y = -max; y <= max-1; y++) {
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bool over;
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int64_t n, m;
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n = int_add(x, y, 16, &over);
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m = x + y;
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if (m > max-1)
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assert(over);
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else if (m < -max)
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assert(over);
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else
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assert(!over && n == m);
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n = int_sub(x, y, 16, &over);
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m = x - y;
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if (m > max-1)
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assert(over);
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else if (m < -max)
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assert(over);
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else
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assert(!over && n == m);
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}
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}
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}
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static void test_int24() {
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printf("%s\n", __FUNCTION__);
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test_int_range(24);
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int64_t s;
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bool over;
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s = int_add(1, (1ULL<<23)-1, 24, &over); assert(over);
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s = int_add((1ULL<<23)-1, 1, 24, &over); assert(over);
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s = int_sub(-1, (1ULL<<23), 24, &over); assert(!over && s == (1ULL<<23)-1);
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s = int_sub((1ULL<<23), 1, 24, &over); assert(over);
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s = int_add(0, 0, 24, &over); assert(!over && s == 0);
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s = int_sub(0, 0, 24, &over); assert(!over && s == 0);
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s = int_add(0, -1, 24, &over); assert(!over && s == -1);
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s = int_sub(0, 1, 24, &over); assert(!over && s == -1);
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s = int_add(0, (1ULL<<23), 24, &over); assert(!over && (s & ((1ULL<<24)-1)) == (1ULL<<23));
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s = int_sub(0, (1ULL<<23)-1, 24, &over); assert(!over && (s & ((1ULL<<24)-1)) == (1ULL<<23)+1);
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s = int_add(-1, 0, 24, &over); assert(!over && s == -1);
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s = int_add(-1, 1, 24, &over); assert(!over && s == 0);
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s = int_sub(-1, -1, 24, &over); assert(!over && s == 0);
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s = int_sub(-1, (1ULL<<23)-1, 24, &over); assert(!over && (s & ((1ULL<<24)-1)) == (1ULL<<23));
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}
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static void test_int32() {
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printf("%s\n", __FUNCTION__);
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test_int_range(32);
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int64_t s;
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bool over;
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s = int_add(1, (1ULL<<31)-1, 32, &over); assert(over);
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s = int_add((1ULL<<31)-1, 1, 32, &over); assert(over);
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s = int_sub(-1, (1ULL<<31), 32, &over); assert(s == (1ULL<<31)-1 && !over);
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s = int_sub((1ULL<<31), 1, 32, &over); assert(over);
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s = int_add(0, 0, 32, &over); assert(s == 0 && !over);
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s = int_sub(0, 0, 32, &over); assert(s == 0 && !over);
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s = int_add(0, -1, 32, &over); assert(s == -1 && !over);
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s = int_sub(0, 1, 32, &over); assert(s == -1 && !over);
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s = int_add(0, (1ULL<<31), 32, &over); assert((s & ((1ULL<<32)-1)) == (1ULL<<31) && !over);
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s = int_sub(0, (1ULL<<31)-1, 32, &over); assert((s & ((1ULL<<32)-1)) == (1ULL<<31)+1 && !over);
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s = int_add(-1, 0, 32, &over); assert(s == -1 && !over);
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s = int_add(-1, 1, 32, &over); assert(s == 0 && !over);
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s = int_sub(-1, -1, 32, &over); assert(s == 0 && !over);
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s = int_sub(-1, (1ULL<<31)-1, 32, &over); assert((s & ((1ULL<<32)-1)) == (1ULL<<31) && !over);
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}
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static void test_int64() {
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printf("%s\n", __FUNCTION__);
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test_int_range(64);
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int64_t s;
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bool over;
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s = int_add(1, (1ULL<<63)-1, 64, &over); assert(over);
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s = int_add((1ULL<<63)-1, 1, 64, &over); assert(over);
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s = int_sub(-1, (1ULL<<63), 64, &over); assert(s == (1ULL<<63)-1 && !over);
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s = int_sub((1ULL<<63), 1, 64, &over); assert(over);
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s = int_add(0, 0, 64, &over); assert(s == 0 && !over);
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s = int_sub(0, 0, 64, &over); assert(s == 0 && !over);
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s = int_add(0, -1, 64, &over); assert(s == -1 && !over);
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s = int_sub(0, 1, 64, &over); assert(s == -1 && !over);
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s = int_add(0, (1ULL<<63), 64, &over); assert(s == (int64_t)(1ULL<<63) && !over);
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s = int_sub(0, (1ULL<<63)-1, 64, &over); assert(s == (int64_t)((1ULL<<63)+1) && !over);
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s = int_add(-1, 0, 64, &over); assert(s == -1 && !over);
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s = int_add(-1, 1, 64, &over); assert(s == 0 && !over);
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s = int_sub(-1, -1, 64, &over); assert(s == 0 && !over);
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s = int_sub(-1, (1ULL<<63)-1, 64, &over); assert(s == (int64_t)(1ULL<<63) && !over);
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}
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static void test_int_sign(uint length_bits) {
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printf("%s %u\n", __FUNCTION__, length_bits);
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int64_t n;
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n = int_high_endpoint(length_bits);
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assert(int_sign_extend(n, length_bits) == n);
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n = (1ULL<<(length_bits-1));
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assert(int_sign_extend(n, length_bits) == -n);
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}
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static void test_int_sign() {
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test_int_sign(8);
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test_int_sign(16);
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test_int_sign(24);
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test_int_sign(32);
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test_int_sign(64);
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}
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int main() {
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if (1) test_int_sign();
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if (1) test_int8();
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if (1) test_int16();
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if (1) test_int24();
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if (1) test_int32();
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if (1) test_int64();
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if (1) test_uint8();
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if (1) test_uint16();
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if (1) test_uint24();
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if (1) test_uint32();
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if (1) test_uint64();
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return 0;
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}
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