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Implement add_compare

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This commit is contained in:
Victor Zverovich
2019-10-13 07:08:39 -07:00
parent 3a15ea3ea5
commit 5e58eb97b1
2 changed files with 84 additions and 21 deletions
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26
test/format-impl-test.cc
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@@ -95,6 +95,32 @@ TEST(BigIntTest, GreaterEqual) {
EXPECT_TRUE(n4 >= n2);
}
TEST(BigIntTest, AddCompare) {
EXPECT_LT(
add_compare(bigint(0xffffffff), bigint(0xffffffff), bigint(1) <<= 64), 0);
EXPECT_LT(add_compare(bigint(1) <<= 32, bigint(1), bigint(1) <<= 96), 0);
EXPECT_GT(add_compare(bigint(1) <<= 32, bigint(0), bigint(0xffffffff)), 0);
EXPECT_GT(add_compare(bigint(0), bigint(1) <<= 32, bigint(0xffffffff)), 0);
EXPECT_GT(add_compare(bigint(42), bigint(1), bigint(42)), 0);
EXPECT_GT(add_compare(bigint(0xffffffff), bigint(1), bigint(0xffffffff)), 0);
EXPECT_LT(add_compare(bigint(10), bigint(10), bigint(22)), 0);
EXPECT_LT(add_compare(bigint(0x100000010), bigint(0x100000010),
bigint(0x300000010)),
0);
EXPECT_GT(add_compare(bigint(0x1ffffffff), bigint(0x100000002),
bigint(0x300000000)),
0);
EXPECT_EQ(add_compare(bigint(0x1ffffffff), bigint(0x100000002),
bigint(0x300000001)),
0);
EXPECT_LT(add_compare(bigint(0x1ffffffff), bigint(0x100000002),
bigint(0x300000002)),
0);
EXPECT_LT(add_compare(bigint(0x1ffffffff), bigint(0x100000002),
bigint(0x300000003)),
0);
}
TEST(BigIntTest, ShiftLeft) {
bigint n(0x42);
n <<= 0;