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Merge pull request #931 from shuffle2/fix-ftz-test 

unittests: correct some integers which should have been floating point types
This commit is contained in:
Pierre Bourdon 2014-09-01 15:09:23 +02:00
parent 5e9c910256 647dc998e4
commit a0bb18872f
1 changed files with 10 additions and 8 deletions
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18
Source/UnitTests/Common/MathUtilTest.cpp
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@ -64,13 +64,15 @@ TEST(MathUtil, FlushToZero)
// we want the multiplication to occur at test runtime.
volatile float s = std::numeric_limits<float>::denorm_min();
volatile double d = std::numeric_limits<double>::denorm_min();
EXPECT_LT(0, s * 2);
EXPECT_LT(0, d * 2);
// Casting away the volatile attribute is required in order for msvc to resolve this to the
// correct instance of the comparison function.
EXPECT_LT(0.f, (float)(s * 2));
EXPECT_LT(0.0, (double)(d * 2));
EXPECT_EQ(+0, MathUtil::FlushToZero(+std::numeric_limits<double>::denorm_min()));
EXPECT_EQ(-0, MathUtil::FlushToZero(-std::numeric_limits<double>::denorm_min()));
EXPECT_EQ(+0, MathUtil::FlushToZero(+std::numeric_limits<double>::min() / 2));
EXPECT_EQ(-0, MathUtil::FlushToZero(-std::numeric_limits<double>::min() / 2));
EXPECT_EQ(+0.0, MathUtil::FlushToZero(+std::numeric_limits<double>::denorm_min()));
EXPECT_EQ(-0.0, MathUtil::FlushToZero(-std::numeric_limits<double>::denorm_min()));
EXPECT_EQ(+0.0, MathUtil::FlushToZero(+std::numeric_limits<double>::min() / 2));
EXPECT_EQ(-0.0, MathUtil::FlushToZero(-std::numeric_limits<double>::min() / 2));
EXPECT_EQ(std::numeric_limits<double>::min(), MathUtil::FlushToZero(std::numeric_limits<double>::min()));
EXPECT_EQ(std::numeric_limits<double>::max(), MathUtil::FlushToZero(std::numeric_limits<double>::max()));
EXPECT_EQ(+std::numeric_limits<double>::infinity(), MathUtil::FlushToZero(+std::numeric_limits<double>::infinity()));
@ -82,10 +84,10 @@ TEST(MathUtil, FlushToZero)
for (u32 i = 0; i <= 0x007fffffu; ++i)
{
MathUtil::IntFloat x(i);
EXPECT_EQ(+0, MathUtil::FlushToZero(x.f));
EXPECT_EQ(+0.f, MathUtil::FlushToZero(x.f));
x.i = i | 0x80000000u;
EXPECT_EQ(-0, MathUtil::FlushToZero(x.f));
EXPECT_EQ(-0.f, MathUtil::FlushToZero(x.f));
x.i = dist(engine);
MathUtil::IntFloat y(MathUtil::FlushToZero(x.f));