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abacus: bignum: add log10

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This commit is contained in:
Bruno BELANYI 2021-08-23 16:38:25 +02:00
parent c730705a13
commit 31dcb91a26
3 changed files with 40 additions and 0 deletions
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20
tests/unit/bignum.cc
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@ -397,3 +397,23 @@ TEST(BigNum, log2) {
EXPECT_EQ(log2(eight), three);
EXPECT_EQ(log2(nine), three);
}
TEST(BigNum, log10) {
auto const zero = BigNum(0);
auto const one = BigNum(1);
auto const two = BigNum(2);
auto const nine = BigNum(9);
auto const ten = BigNum(10);
auto const eleven = BigNum(11);
auto const ninety_nine = BigNum(99);
auto const hundred = BigNum(100);
auto const hundred_one = BigNum(101);
EXPECT_EQ(log10(one), zero);
EXPECT_EQ(log10(nine), zero);
EXPECT_EQ(log10(ten), one);
EXPECT_EQ(log10(eleven), one);
EXPECT_EQ(log10(ninety_nine), one);
EXPECT_EQ(log10(hundred), two);
EXPECT_EQ(log10(hundred_one), two);
}