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@@ -1,513 +0,0 @@
-// Protocol Buffers - Google's data interchange format
-// Copyright 2008 Google Inc. All rights reserved.
-// https://developers.google.com/protocol-buffers/
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-// * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-// * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-// * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-#include <google/protobuf/stubs/int128.h>
-
-#include <algorithm>
-#include <sstream>
-#include <utility>
-
-#include <google/protobuf/testing/googletest.h>
-#include <gtest/gtest.h>
-
-namespace google {
-namespace protobuf {
-
-TEST(Int128, AllTests) {
- uint128 zero(0);
- uint128 one(1);
- uint128 one_2arg(0, 1);
- uint128 two(0, 2);
- uint128 three(0, 3);
- uint128 big(2000, 2);
- uint128 big_minus_one(2000, 1);
- uint128 bigger(2001, 1);
- uint128 biggest(kuint128max);
- uint128 high_low(1, 0);
- uint128 low_high(0, kuint64max);
- EXPECT_LT(one, two);
- EXPECT_GT(two, one);
- EXPECT_LT(one, big);
- EXPECT_LT(one, big);
- EXPECT_EQ(one, one_2arg);
- EXPECT_NE(one, two);
- EXPECT_GT(big, one);
- EXPECT_GE(big, two);
- EXPECT_GE(big, big_minus_one);
- EXPECT_GT(big, big_minus_one);
- EXPECT_LT(big_minus_one, big);
- EXPECT_LE(big_minus_one, big);
- EXPECT_NE(big_minus_one, big);
- EXPECT_LT(big, biggest);
- EXPECT_LE(big, biggest);
- EXPECT_GT(biggest, big);
- EXPECT_GE(biggest, big);
- EXPECT_EQ(big, ~~big);
- EXPECT_EQ(one, one | one);
- EXPECT_EQ(big, big | big);
- EXPECT_EQ(one, one | zero);
- EXPECT_EQ(one, one & one);
- EXPECT_EQ(big, big & big);
- EXPECT_EQ(zero, one & zero);
- EXPECT_EQ(zero, big & ~big);
- EXPECT_EQ(zero, one ^ one);
- EXPECT_EQ(zero, big ^ big);
- EXPECT_EQ(one, one ^ zero);
-
- // Shift operators.
- EXPECT_EQ(big, big << 0);
- EXPECT_EQ(big, big >> 0);
- EXPECT_GT(big << 1, big);
- EXPECT_LT(big >> 1, big);
- EXPECT_EQ(big, (big << 10) >> 10);
- EXPECT_EQ(big, (big >> 1) << 1);
- EXPECT_EQ(one, (one << 80) >> 80);
- EXPECT_EQ(zero, (one >> 80) << 80);
- EXPECT_EQ(zero, big >> 128);
- EXPECT_EQ(zero, big << 128);
-
- // Shift assignments.
- uint128 big_copy = big;
- EXPECT_EQ(big << 0, big_copy <<= 0);
- big_copy = big;
- EXPECT_EQ(big >> 0, big_copy >>= 0);
- big_copy = big;
- EXPECT_EQ(big << 1, big_copy <<= 1);
- big_copy = big;
- EXPECT_EQ(big >> 1, big_copy >>= 1);
- big_copy = big;
- EXPECT_EQ(big << 10, big_copy <<= 10);
- big_copy = big;
- EXPECT_EQ(big >> 10, big_copy >>= 10);
- big_copy = big;
- EXPECT_EQ(big << 64, big_copy <<= 64);
- big_copy = big;
- EXPECT_EQ(big >> 64, big_copy >>= 64);
- big_copy = big;
- EXPECT_EQ(big << 73, big_copy <<= 73);
- big_copy = big;
- EXPECT_EQ(big >> 73, big_copy >>= 73);
- big_copy = big;
- EXPECT_EQ(big << 128, big_copy <<= 128);
- big_copy = big;
- EXPECT_EQ(big >> 128, big_copy >>= 128);
-
- EXPECT_EQ(Uint128High64(biggest), kuint64max);
- EXPECT_EQ(Uint128Low64(biggest), kuint64max);
- EXPECT_EQ(zero + one, one);
- EXPECT_EQ(one + one, two);
- EXPECT_EQ(big_minus_one + one, big);
- EXPECT_EQ(one - one, zero);
- EXPECT_EQ(one - zero, one);
- EXPECT_EQ(zero - one, biggest);
- EXPECT_EQ(big - big, zero);
- EXPECT_EQ(big - one, big_minus_one);
- EXPECT_EQ(big + kuint64max, bigger);
- EXPECT_EQ(biggest + 1, zero);
- EXPECT_EQ(zero - 1, biggest);
- EXPECT_EQ(high_low - one, low_high);
- EXPECT_EQ(low_high + one, high_low);
- EXPECT_EQ(Uint128High64((uint128(1) << 64) - 1), 0);
- EXPECT_EQ(Uint128Low64((uint128(1) << 64) - 1), kuint64max);
- EXPECT_TRUE(!!one);
- EXPECT_TRUE(!!high_low);
- EXPECT_FALSE(!!zero);
- EXPECT_FALSE(!one);
- EXPECT_FALSE(!high_low);
- EXPECT_TRUE(!zero);
- EXPECT_TRUE(zero == 0);
- EXPECT_FALSE(zero != 0);
- EXPECT_FALSE(one == 0);
- EXPECT_TRUE(one != 0);
-
- uint128 test = zero;
- EXPECT_EQ(++test, one);
- EXPECT_EQ(test, one);
- EXPECT_EQ(test++, one);
- EXPECT_EQ(test, two);
- EXPECT_EQ(test -= 2, zero);
- EXPECT_EQ(test, zero);
- EXPECT_EQ(test += 2, two);
- EXPECT_EQ(test, two);
- EXPECT_EQ(--test, one);
- EXPECT_EQ(test, one);
- EXPECT_EQ(test--, one);
- EXPECT_EQ(test, zero);
- EXPECT_EQ(test |= three, three);
- EXPECT_EQ(test &= one, one);
- EXPECT_EQ(test ^= three, two);
- EXPECT_EQ(test >>= 1, one);
- EXPECT_EQ(test <<= 1, two);
-
- EXPECT_EQ(big, -(-big));
- EXPECT_EQ(two, -((-one) - 1));
- EXPECT_EQ(kuint128max, -one);
- EXPECT_EQ(zero, -zero);
-
- GOOGLE_LOG(INFO) << one;
- GOOGLE_LOG(INFO) << big_minus_one;
-}
-
-TEST(Int128, PodTests) {
- uint128_pod pod = { 12345, 67890 };
- uint128 from_pod(pod);
- EXPECT_EQ(12345, Uint128High64(from_pod));
- EXPECT_EQ(67890, Uint128Low64(from_pod));
-
- uint128 zero(0);
- uint128_pod zero_pod = {0, 0};
- uint128 one(1);
- uint128_pod one_pod = {0, 1};
- uint128 two(2);
- uint128_pod two_pod = {0, 2};
- uint128 three(3);
- uint128_pod three_pod = {0, 3};
- uint128 big(1, 0);
- uint128_pod big_pod = {1, 0};
-
- EXPECT_EQ(zero, zero_pod);
- EXPECT_EQ(zero_pod, zero);
- EXPECT_EQ(zero_pod, zero_pod);
- EXPECT_EQ(one, one_pod);
- EXPECT_EQ(one_pod, one);
- EXPECT_EQ(one_pod, one_pod);
- EXPECT_EQ(two, two_pod);
- EXPECT_EQ(two_pod, two);
- EXPECT_EQ(two_pod, two_pod);
-
- EXPECT_NE(one, two_pod);
- EXPECT_NE(one_pod, two);
- EXPECT_NE(one_pod, two_pod);
-
- EXPECT_LT(one, two_pod);
- EXPECT_LT(one_pod, two);
- EXPECT_LT(one_pod, two_pod);
- EXPECT_LE(one, one_pod);
- EXPECT_LE(one_pod, one);
- EXPECT_LE(one_pod, one_pod);
- EXPECT_LE(one, two_pod);
- EXPECT_LE(one_pod, two);
- EXPECT_LE(one_pod, two_pod);
-
- EXPECT_GT(two, one_pod);
- EXPECT_GT(two_pod, one);
- EXPECT_GT(two_pod, one_pod);
- EXPECT_GE(two, two_pod);
- EXPECT_GE(two_pod, two);
- EXPECT_GE(two_pod, two_pod);
- EXPECT_GE(two, one_pod);
- EXPECT_GE(two_pod, one);
- EXPECT_GE(two_pod, one_pod);
-
- EXPECT_EQ(three, one | two_pod);
- EXPECT_EQ(three, one_pod | two);
- EXPECT_EQ(three, one_pod | two_pod);
- EXPECT_EQ(one, three & one_pod);
- EXPECT_EQ(one, three_pod & one);
- EXPECT_EQ(one, three_pod & one_pod);
- EXPECT_EQ(two, three ^ one_pod);
- EXPECT_EQ(two, three_pod ^ one);
- EXPECT_EQ(two, three_pod ^ one_pod);
- EXPECT_EQ(two, three & (~one));
- EXPECT_EQ(three, ~~three);
-
- EXPECT_EQ(two, two_pod << 0);
- EXPECT_EQ(two, one_pod << 1);
- EXPECT_EQ(big, one_pod << 64);
- EXPECT_EQ(zero, one_pod << 128);
- EXPECT_EQ(two, two_pod >> 0);
- EXPECT_EQ(one, two_pod >> 1);
- EXPECT_EQ(one, big_pod >> 64);
-
- EXPECT_EQ(one, zero + one_pod);
- EXPECT_EQ(one, zero_pod + one);
- EXPECT_EQ(one, zero_pod + one_pod);
- EXPECT_EQ(one, two - one_pod);
- EXPECT_EQ(one, two_pod - one);
- EXPECT_EQ(one, two_pod - one_pod);
-}
-
-TEST(Int128, OperatorAssignReturnRef) {
- uint128 v(1);
- (v += 4) -= 3;
- EXPECT_EQ(2, v);
-}
-
-TEST(Int128, Multiply) {
- uint128 a, b, c;
-
- // Zero test.
- a = 0;
- b = 0;
- c = a * b;
- EXPECT_EQ(0, c);
-
- // Max carries.
- a = uint128(0) - 1;
- b = uint128(0) - 1;
- c = a * b;
- EXPECT_EQ(1, c);
-
- // Self-operation with max carries.
- c = uint128(0) - 1;
- c *= c;
- EXPECT_EQ(1, c);
-
- // 1-bit x 1-bit.
- for (int i = 0; i < 64; ++i) {
- for (int j = 0; j < 64; ++j) {
- a = uint128(1) << i;
- b = uint128(1) << j;
- c = a * b;
- EXPECT_EQ(uint128(1) << (i+j), c);
- }
- }
-
- // Verified with dc.
- a = uint128(GOOGLE_ULONGLONG(0xffffeeeeddddcccc),
- GOOGLE_ULONGLONG(0xbbbbaaaa99998888));
- b = uint128(GOOGLE_ULONGLONG(0x7777666655554444),
- GOOGLE_ULONGLONG(0x3333222211110000));
- c = a * b;
- EXPECT_EQ(uint128(GOOGLE_ULONGLONG(0x530EDA741C71D4C3),
- GOOGLE_ULONGLONG(0xBF25975319080000)), c);
- EXPECT_EQ(0, c - b * a);
- EXPECT_EQ(a*a - b*b, (a+b) * (a-b));
-
- // Verified with dc.
- a = uint128(GOOGLE_ULONGLONG(0x0123456789abcdef),
- GOOGLE_ULONGLONG(0xfedcba9876543210));
- b = uint128(GOOGLE_ULONGLONG(0x02468ace13579bdf),
- GOOGLE_ULONGLONG(0xfdb97531eca86420));
- c = a * b;
- EXPECT_EQ(uint128(GOOGLE_ULONGLONG(0x97a87f4f261ba3f2),
- GOOGLE_ULONGLONG(0x342d0bbf48948200)), c);
- EXPECT_EQ(0, c - b * a);
- EXPECT_EQ(a*a - b*b, (a+b) * (a-b));
-}
-
-TEST(Int128, AliasTests) {
- uint128 x1(1, 2);
- uint128 x2(2, 4);
- x1 += x1;
- EXPECT_EQ(x2, x1);
-
- uint128 x3(1, static_cast<uint64>(1) << 63);
- uint128 x4(3, 0);
- x3 += x3;
- EXPECT_EQ(x4, x3);
-}
-
-#ifdef PROTOBUF_HAS_DEATH_TEST
-TEST(Int128, DivideByZeroCheckFails) {
- uint128 a = 0;
- uint128 b = 0;
- EXPECT_DEATH(a / b, "Division or mod by zero:");
- a = 123;
- EXPECT_DEATH(a / b, "Division or mod by zero:");
-}
-
-TEST(Int128, ModByZeroCheckFails) {
- uint128 a = 0;
- uint128 b = 0;
- EXPECT_DEATH(a % b, "Division or mod by zero:");
- a = 123;
- EXPECT_DEATH(a % b, "Division or mod by zero:");
-}
-#endif // PROTOBUF_HAS_DEATH_TEST
-
-TEST(Int128, DivideAndMod) {
- // a := q * b + r
- uint128 a, b, q, r;
-
- // Zero test.
- a = 0;
- b = 123;
- q = a / b;
- r = a % b;
- EXPECT_EQ(0, q);
- EXPECT_EQ(0, r);
-
- a = uint128(GOOGLE_ULONGLONG(0x530eda741c71d4c3),
- GOOGLE_ULONGLONG(0xbf25975319080000));
- q = uint128(GOOGLE_ULONGLONG(0x4de2cab081),
- GOOGLE_ULONGLONG(0x14c34ab4676e4bab));
- b = uint128(0x1110001);
- r = uint128(0x3eb455);
- ASSERT_EQ(a, q * b + r); // Sanity-check.
-
- uint128 result_q, result_r;
- result_q = a / b;
- result_r = a % b;
- EXPECT_EQ(q, result_q);
- EXPECT_EQ(r, result_r);
-
- // Try the other way around.
- swap(q, b);
- result_q = a / b;
- result_r = a % b;
- EXPECT_EQ(q, result_q);
- EXPECT_EQ(r, result_r);
- // Restore.
- swap(b, q);
-
- // Dividend < divisor; result should be q:0 r:<dividend>.
- swap(a, b);
- result_q = a / b;
- result_r = a % b;
- EXPECT_EQ(0, result_q);
- EXPECT_EQ(a, result_r);
- // Try the other way around.
- swap(a, q);
- result_q = a / b;
- result_r = a % b;
- EXPECT_EQ(0, result_q);
- EXPECT_EQ(a, result_r);
- // Restore.
- swap(q, a);
- swap(b, a);
-
- // Try a large remainder.
- b = a / 2 + 1;
- uint128 expected_r(GOOGLE_ULONGLONG(0x29876d3a0e38ea61),
- GOOGLE_ULONGLONG(0xdf92cba98c83ffff));
- // Sanity checks.
- ASSERT_EQ(a / 2 - 1, expected_r);
- ASSERT_EQ(a, b + expected_r);
- result_q = a / b;
- result_r = a % b;
- EXPECT_EQ(1, result_q);
- EXPECT_EQ(expected_r, result_r);
-}
-
-static uint64 RandomUint64() {
- uint64 v1 = rand();
- uint64 v2 = rand();
- uint64 v3 = rand();
- return v1 * v2 + v3;
-}
-
-TEST(Int128, DivideAndModRandomInputs) {
- const int kNumIters = 1 << 18;
- for (int i = 0; i < kNumIters; ++i) {
- const uint128 a(RandomUint64(), RandomUint64());
- const uint128 b(RandomUint64(), RandomUint64());
- if (b == 0) {
- continue; // Avoid a div-by-zero.
- }
- const uint128 q = a / b;
- const uint128 r = a % b;
- ASSERT_EQ(a, b * q + r);
- }
-}
-
-#ifdef GOOGLE_PROTOBUF_HAS_CONSTEXPR
-TEST(Int128, ConstexprTest) {
- constexpr uint128 zero;
- constexpr uint128 one = 1;
- constexpr uint128_pod pod = {2, 3};
- constexpr uint128 from_pod = pod;
- constexpr uint128 minus_two = -2;
- EXPECT_EQ(one, uint128(1));
- EXPECT_EQ(from_pod, uint128(2, 3));
- EXPECT_EQ(minus_two, uint128(-1ULL, -2ULL));
-}
-
-TEST(Int128, Traits) {
- EXPECT_TRUE(std::is_trivially_copy_constructible<uint128>::value);
- EXPECT_TRUE(std::is_trivially_copy_assignable<uint128>::value);
- EXPECT_TRUE(std::is_trivially_destructible<uint128>::value);
-}
-#endif // GOOGLE_PROTOBUF_HAS_CONSTEXPR
-
-TEST(Int128, OStream) {
- struct {
- uint128 val;
- std::ios_base::fmtflags flags;
- std::streamsize width;
- char fill;
- const char* rep;
- } cases[] = {
- // zero with different bases
- {uint128(0), std::ios::dec, 0, '_', "0"},
- {uint128(0), std::ios::oct, 0, '_', "0"},
- {uint128(0), std::ios::hex, 0, '_', "0"},
- // crossover between lo_ and hi_
- {uint128(0, -1), std::ios::dec, 0, '_', "18446744073709551615"},
- {uint128(0, -1), std::ios::oct, 0, '_', "1777777777777777777777"},
- {uint128(0, -1), std::ios::hex, 0, '_', "ffffffffffffffff"},
- {uint128(1, 0), std::ios::dec, 0, '_', "18446744073709551616"},
- {uint128(1, 0), std::ios::oct, 0, '_', "2000000000000000000000"},
- {uint128(1, 0), std::ios::hex, 0, '_', "10000000000000000"},
- // just the top bit
- {uint128(GOOGLE_ULONGLONG(0x8000000000000000), 0), std::ios::dec, 0, '_',
- "170141183460469231731687303715884105728"},
- {uint128(GOOGLE_ULONGLONG(0x8000000000000000), 0), std::ios::oct, 0, '_',
- "2000000000000000000000000000000000000000000"},
- {uint128(GOOGLE_ULONGLONG(0x8000000000000000), 0), std::ios::hex, 0, '_',
- "80000000000000000000000000000000"},
- // maximum uint128 value
- {uint128(-1, -1), std::ios::dec, 0, '_',
- "340282366920938463463374607431768211455"},
- {uint128(-1, -1), std::ios::oct, 0, '_',
- "3777777777777777777777777777777777777777777"},
- {uint128(-1, -1), std::ios::hex, 0, '_',
- "ffffffffffffffffffffffffffffffff"},
- // uppercase
- {uint128(-1, -1), std::ios::hex | std::ios::uppercase, 0, '_',
- "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"},
- // showbase
- {uint128(1), std::ios::dec | std::ios::showbase, 0, '_', "1"},
- {uint128(1), std::ios::oct | std::ios::showbase, 0, '_', "01"},
- {uint128(1), std::ios::hex | std::ios::showbase, 0, '_', "0x1"},
- // showbase does nothing on zero
- {uint128(0), std::ios::dec | std::ios::showbase, 0, '_', "0"},
- {uint128(0), std::ios::oct | std::ios::showbase, 0, '_', "0"},
- {uint128(0), std::ios::hex | std::ios::showbase, 0, '_', "0"},
- // showpos does nothing on unsigned types
- {uint128(1), std::ios::dec | std::ios::showpos, 0, '_', "1"},
- // padding
- {uint128(9), std::ios::dec, 6, '_', "_____9"},
- {uint128(12345), std::ios::dec, 6, '_', "_12345"},
- // left adjustment
- {uint128(9), std::ios::dec | std::ios::left, 6, '_', "9_____"},
- {uint128(12345), std::ios::dec | std::ios::left, 6, '_', "12345_"},
- };
- for (size_t i = 0; i < GOOGLE_ARRAYSIZE(cases); ++i) {
- ostringstream os;
- os.flags(cases[i].flags);
- os.width(cases[i].width);
- os.fill(cases[i].fill);
- os << cases[i].val;
- EXPECT_EQ(cases[i].rep, os.str());
- }
-}
-} // namespace protobuf
-} // namespace google
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-22 18:40:56 +0000