ambroisie/abacus
ambroisie/abacus
1
0
Fork 0
Code Issues Pull requests Projects Releases Wiki Activity

abacus: bignum: add log2

Browse source
This commit is contained in:
Bruno BELANYI 2021-08-23 16:33:05 +02:00
parent 4b85d22923
commit c730705a13
3 changed files with 47 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

21
tests/unit/bignum.cc
View file

@ -376,3 +376,24 @@ TEST(BigNum, sqrt) {
EXPECT_EQ(sqrt(ninety_nine), nine);
EXPECT_EQ(sqrt(hundred), ten);
}
TEST(BigNum, log2) {
auto const zero = BigNum(0);
auto const one = BigNum(1);
auto const two = BigNum(2);
auto const three = BigNum(3);
auto const four = BigNum(4);
auto const five = BigNum(5);
auto const seven = BigNum(7);
auto const eight = BigNum(8);
auto const nine = BigNum(9);
EXPECT_EQ(log2(one), zero);
EXPECT_EQ(log2(two), one);
EXPECT_EQ(log2(three), one);
EXPECT_EQ(log2(four), two);
EXPECT_EQ(log2(five), two);
EXPECT_EQ(log2(seven), two);
EXPECT_EQ(log2(eight), three);
EXPECT_EQ(log2(nine), three);
}