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Rename Log2 and add IsPow2 to MathUtils for future use

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Also remove unused pow2/pow2f functions.
This commit is contained in:
Fiora 2014-08-24 11:03:07 -07:00
parent aec639470f
commit b51aa4fa89
5 changed files with 16 additions and 17 deletions
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16
Source/UnitTests/Common/MathUtilTest.cpp
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@ -44,17 +44,17 @@ TEST(MathUtil, IsSNAN)
EXPECT_TRUE(MathUtil::IsSNAN(std::numeric_limits<double>::signaling_NaN()));
}
TEST(MathUtil, Log2)
TEST(MathUtil, IntLog2)
{
EXPECT_EQ(0, Log2(1));
EXPECT_EQ(1, Log2(2));
EXPECT_EQ(2, Log2(4));
EXPECT_EQ(3, Log2(8));
EXPECT_EQ(63, Log2(0x8000000000000000ull));
EXPECT_EQ(0, IntLog2(1));
EXPECT_EQ(1, IntLog2(2));
EXPECT_EQ(2, IntLog2(4));
EXPECT_EQ(3, IntLog2(8));
EXPECT_EQ(63, IntLog2(0x8000000000000000ull));
// Rounding behavior.
EXPECT_EQ(3, Log2(15));
EXPECT_EQ(63, Log2(0xFFFFFFFFFFFFFFFFull));
EXPECT_EQ(3, IntLog2(15));
EXPECT_EQ(63, IntLog2(0xFFFFFFFFFFFFFFFFull));
}
TEST(MathUtil, FlushToZero)