diff options
Diffstat (limited to 'unittests/ADT/APFloatTest.cpp')
| -rw-r--r-- | unittests/ADT/APFloatTest.cpp | 1270 |
1 files changed, 1241 insertions, 29 deletions
diff --git a/unittests/ADT/APFloatTest.cpp b/unittests/ADT/APFloatTest.cpp index e1b9158..3b69de2 100644 --- a/unittests/ADT/APFloatTest.cpp +++ b/unittests/ADT/APFloatTest.cpp @@ -538,6 +538,31 @@ TEST(APFloatTest, Zero) { EXPECT_TRUE(APFloat(-0.0).isNegative()); } +TEST(APFloatTest, DecimalStringsWithoutNullTerminators) { + // Make sure that we can parse strings without null terminators. + // rdar://14323230. + APFloat Val(APFloat::IEEEdouble); + Val.convertFromString(StringRef("0.00", 3), + llvm::APFloat::rmNearestTiesToEven); + EXPECT_EQ(Val.convertToDouble(), 0.0); + Val.convertFromString(StringRef("0.01", 3), + llvm::APFloat::rmNearestTiesToEven); + EXPECT_EQ(Val.convertToDouble(), 0.0); + Val.convertFromString(StringRef("0.09", 3), + llvm::APFloat::rmNearestTiesToEven); + EXPECT_EQ(Val.convertToDouble(), 0.0); + Val.convertFromString(StringRef("0.095", 4), + llvm::APFloat::rmNearestTiesToEven); + EXPECT_EQ(Val.convertToDouble(), 0.09); + Val.convertFromString(StringRef("0.00e+3", 7), + llvm::APFloat::rmNearestTiesToEven); + EXPECT_EQ(Val.convertToDouble(), 0.00); + Val.convertFromString(StringRef("0e+3", 4), + llvm::APFloat::rmNearestTiesToEven); + EXPECT_EQ(Val.convertToDouble(), 0.00); + +} + TEST(APFloatTest, fromZeroDecimalString) { EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble, "0").convertToDouble()); EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble, "+0").convertToDouble()); @@ -741,6 +766,8 @@ TEST(APFloatTest, fromDecimalString) { EXPECT_TRUE(APFloat(APFloat::IEEEdouble, "-99e99999").isInfinity()); EXPECT_TRUE(APFloat(APFloat::IEEEdouble, "1e-99999").isPosZero()); EXPECT_TRUE(APFloat(APFloat::IEEEdouble, "-1e-99999").isNegZero()); + + EXPECT_EQ(2.71828, convertToDoubleFromString("2.71828")); } TEST(APFloatTest, fromHexadecimalString) { @@ -824,7 +851,10 @@ TEST(APFloatTest, fromHexadecimalString) { EXPECT_EQ(1.0625, APFloat(APFloat::IEEEdouble, "0x1.1p0").convertToDouble()); EXPECT_EQ(1.0, APFloat(APFloat::IEEEdouble, "0x1p0").convertToDouble()); - EXPECT_EQ(2.71828, convertToDoubleFromString("2.71828")); + EXPECT_EQ(convertToDoubleFromString("0x1p-150"), + convertToDoubleFromString("+0x800000000000000001.p-221")); + EXPECT_EQ(2251799813685248.5, + convertToDoubleFromString("0x80000000000004000000.010p-28")); } TEST(APFloatTest, toString) { @@ -1218,60 +1248,60 @@ TEST(APFloatTest, getSmallest) { APFloat test = APFloat::getSmallest(APFloat::IEEEsingle, false); APFloat expected = APFloat(APFloat::IEEEsingle, "0x0.000002p-126"); EXPECT_FALSE(test.isNegative()); - EXPECT_TRUE(test.isNormal()); + EXPECT_TRUE(test.isFiniteNonZero()); EXPECT_TRUE(test.isDenormal()); EXPECT_TRUE(test.bitwiseIsEqual(expected)); test = APFloat::getSmallest(APFloat::IEEEsingle, true); expected = APFloat(APFloat::IEEEsingle, "-0x0.000002p-126"); EXPECT_TRUE(test.isNegative()); - EXPECT_TRUE(test.isNormal()); + EXPECT_TRUE(test.isFiniteNonZero()); EXPECT_TRUE(test.isDenormal()); EXPECT_TRUE(test.bitwiseIsEqual(expected)); test = APFloat::getSmallest(APFloat::IEEEquad, false); expected = APFloat(APFloat::IEEEquad, "0x0.0000000000000000000000000001p-16382"); EXPECT_FALSE(test.isNegative()); - EXPECT_TRUE(test.isNormal()); + EXPECT_TRUE(test.isFiniteNonZero()); EXPECT_TRUE(test.isDenormal()); EXPECT_TRUE(test.bitwiseIsEqual(expected)); test = APFloat::getSmallest(APFloat::IEEEquad, true); expected = APFloat(APFloat::IEEEquad, "-0x0.0000000000000000000000000001p-16382"); EXPECT_TRUE(test.isNegative()); - EXPECT_TRUE(test.isNormal()); + EXPECT_TRUE(test.isFiniteNonZero()); EXPECT_TRUE(test.isDenormal()); - EXPECT_TRUE(test.bitwiseIsEqual(expected)); + EXPECT_TRUE(test.bitwiseIsEqual(expected)); } TEST(APFloatTest, getSmallestNormalized) { APFloat test = APFloat::getSmallestNormalized(APFloat::IEEEsingle, false); APFloat expected = APFloat(APFloat::IEEEsingle, "0x1p-126"); EXPECT_FALSE(test.isNegative()); - EXPECT_TRUE(test.isNormal()); + EXPECT_TRUE(test.isFiniteNonZero()); EXPECT_FALSE(test.isDenormal()); EXPECT_TRUE(test.bitwiseIsEqual(expected)); test = APFloat::getSmallestNormalized(APFloat::IEEEsingle, true); expected = APFloat(APFloat::IEEEsingle, "-0x1p-126"); EXPECT_TRUE(test.isNegative()); - EXPECT_TRUE(test.isNormal()); + EXPECT_TRUE(test.isFiniteNonZero()); EXPECT_FALSE(test.isDenormal()); EXPECT_TRUE(test.bitwiseIsEqual(expected)); test = APFloat::getSmallestNormalized(APFloat::IEEEquad, false); expected = APFloat(APFloat::IEEEquad, "0x1p-16382"); EXPECT_FALSE(test.isNegative()); - EXPECT_TRUE(test.isNormal()); + EXPECT_TRUE(test.isFiniteNonZero()); EXPECT_FALSE(test.isDenormal()); EXPECT_TRUE(test.bitwiseIsEqual(expected)); test = APFloat::getSmallestNormalized(APFloat::IEEEquad, true); expected = APFloat(APFloat::IEEEquad, "-0x1p-16382"); EXPECT_TRUE(test.isNegative()); - EXPECT_TRUE(test.isNormal()); + EXPECT_TRUE(test.isFiniteNonZero()); EXPECT_FALSE(test.isDenormal()); - EXPECT_TRUE(test.bitwiseIsEqual(expected)); + EXPECT_TRUE(test.bitwiseIsEqual(expected)); } TEST(APFloatTest, getZero) { @@ -1403,10 +1433,10 @@ TEST(APFloatTest, isNegative) { EXPECT_FALSE(t.isNegative()); t = APFloat(APFloat::IEEEsingle, "-0x1p+0"); EXPECT_TRUE(t.isNegative()); - + EXPECT_FALSE(APFloat::getInf(APFloat::IEEEsingle, false).isNegative()); EXPECT_TRUE(APFloat::getInf(APFloat::IEEEsingle, true).isNegative()); - + EXPECT_FALSE(APFloat::getZero(APFloat::IEEEsingle, false).isNegative()); EXPECT_TRUE(APFloat::getZero(APFloat::IEEEsingle, true).isNegative()); @@ -1417,25 +1447,25 @@ TEST(APFloatTest, isNegative) { EXPECT_TRUE(APFloat::getSNaN(APFloat::IEEEsingle, true).isNegative()); } -TEST(APFloatTest, isIEEENormal) { +TEST(APFloatTest, isNormal) { APFloat t(APFloat::IEEEsingle, "0x1p+0"); - EXPECT_TRUE(t.isIEEENormal()); - - EXPECT_FALSE(APFloat::getInf(APFloat::IEEEsingle, false).isIEEENormal()); - EXPECT_FALSE(APFloat::getZero(APFloat::IEEEsingle, false).isIEEENormal()); - EXPECT_FALSE(APFloat::getNaN(APFloat::IEEEsingle, false).isIEEENormal()); - EXPECT_FALSE(APFloat::getSNaN(APFloat::IEEEsingle, false).isIEEENormal()); - EXPECT_FALSE(APFloat(APFloat::IEEEsingle, "0x1p-159").isIEEENormal()); + EXPECT_TRUE(t.isNormal()); + + EXPECT_FALSE(APFloat::getInf(APFloat::IEEEsingle, false).isNormal()); + EXPECT_FALSE(APFloat::getZero(APFloat::IEEEsingle, false).isNormal()); + EXPECT_FALSE(APFloat::getNaN(APFloat::IEEEsingle, false).isNormal()); + EXPECT_FALSE(APFloat::getSNaN(APFloat::IEEEsingle, false).isNormal()); + EXPECT_FALSE(APFloat(APFloat::IEEEsingle, "0x1p-149").isNormal()); } TEST(APFloatTest, isFinite) { APFloat t(APFloat::IEEEsingle, "0x1p+0"); - EXPECT_TRUE(t.isFinite()); + EXPECT_TRUE(t.isFinite()); EXPECT_FALSE(APFloat::getInf(APFloat::IEEEsingle, false).isFinite()); EXPECT_TRUE(APFloat::getZero(APFloat::IEEEsingle, false).isFinite()); EXPECT_FALSE(APFloat::getNaN(APFloat::IEEEsingle, false).isFinite()); - EXPECT_FALSE(APFloat::getSNaN(APFloat::IEEEsingle, false).isFinite()); - EXPECT_TRUE(APFloat(APFloat::IEEEsingle, "0x1p-159").isFinite()); + EXPECT_FALSE(APFloat::getSNaN(APFloat::IEEEsingle, false).isFinite()); + EXPECT_TRUE(APFloat(APFloat::IEEEsingle, "0x1p-149").isFinite()); } TEST(APFloatTest, isInfinity) { @@ -1444,18 +1474,1200 @@ TEST(APFloatTest, isInfinity) { EXPECT_TRUE(APFloat::getInf(APFloat::IEEEsingle, false).isInfinity()); EXPECT_FALSE(APFloat::getZero(APFloat::IEEEsingle, false).isInfinity()); EXPECT_FALSE(APFloat::getNaN(APFloat::IEEEsingle, false).isInfinity()); - EXPECT_FALSE(APFloat::getSNaN(APFloat::IEEEsingle, false).isInfinity()); - EXPECT_FALSE(APFloat(APFloat::IEEEsingle, "0x1p-159").isInfinity()); + EXPECT_FALSE(APFloat::getSNaN(APFloat::IEEEsingle, false).isInfinity()); + EXPECT_FALSE(APFloat(APFloat::IEEEsingle, "0x1p-149").isInfinity()); } TEST(APFloatTest, isNaN) { APFloat t(APFloat::IEEEsingle, "0x1p+0"); - EXPECT_FALSE(t.isNaN()); + EXPECT_FALSE(t.isNaN()); EXPECT_FALSE(APFloat::getInf(APFloat::IEEEsingle, false).isNaN()); EXPECT_FALSE(APFloat::getZero(APFloat::IEEEsingle, false).isNaN()); EXPECT_TRUE(APFloat::getNaN(APFloat::IEEEsingle, false).isNaN()); - EXPECT_TRUE(APFloat::getSNaN(APFloat::IEEEsingle, false).isNaN()); - EXPECT_FALSE(APFloat(APFloat::IEEEsingle, "0x1p-159").isNaN()); + EXPECT_TRUE(APFloat::getSNaN(APFloat::IEEEsingle, false).isNaN()); + EXPECT_FALSE(APFloat(APFloat::IEEEsingle, "0x1p-149").isNaN()); +} + +TEST(APFloatTest, isFiniteNonZero) { + // Test positive/negative normal value. + EXPECT_TRUE(APFloat(APFloat::IEEEsingle, "0x1p+0").isFiniteNonZero()); + EXPECT_TRUE(APFloat(APFloat::IEEEsingle, "-0x1p+0").isFiniteNonZero()); + + // Test positive/negative denormal value. + EXPECT_TRUE(APFloat(APFloat::IEEEsingle, "0x1p-149").isFiniteNonZero()); + EXPECT_TRUE(APFloat(APFloat::IEEEsingle, "-0x1p-149").isFiniteNonZero()); + + // Test +/- Infinity. + EXPECT_FALSE(APFloat::getInf(APFloat::IEEEsingle, false).isFiniteNonZero()); + EXPECT_FALSE(APFloat::getInf(APFloat::IEEEsingle, true).isFiniteNonZero()); + + // Test +/- Zero. + EXPECT_FALSE(APFloat::getZero(APFloat::IEEEsingle, false).isFiniteNonZero()); + EXPECT_FALSE(APFloat::getZero(APFloat::IEEEsingle, true).isFiniteNonZero()); + + // Test +/- qNaN. +/- dont mean anything with qNaN but paranoia can't hurt in + // this instance. + EXPECT_FALSE(APFloat::getNaN(APFloat::IEEEsingle, false).isFiniteNonZero()); + EXPECT_FALSE(APFloat::getNaN(APFloat::IEEEsingle, true).isFiniteNonZero()); + + // Test +/- sNaN. +/- dont mean anything with sNaN but paranoia can't hurt in + // this instance. + EXPECT_FALSE(APFloat::getSNaN(APFloat::IEEEsingle, false).isFiniteNonZero()); + EXPECT_FALSE(APFloat::getSNaN(APFloat::IEEEsingle, true).isFiniteNonZero()); +} + +TEST(APFloatTest, add) { + // Test Special Cases against each other and normal values. + + // TODOS/NOTES: + // 1. Since we perform only default exception handling all operations with + // signaling NaNs should have a result that is a quiet NaN. Currently they + // return sNaN. + + APFloat PInf = APFloat::getInf(APFloat::IEEEsingle, false); + APFloat MInf = APFloat::getInf(APFloat::IEEEsingle, true); + APFloat PZero = APFloat::getZero(APFloat::IEEEsingle, false); + APFloat MZero = APFloat::getZero(APFloat::IEEEsingle, true); + APFloat QNaN = APFloat::getNaN(APFloat::IEEEsingle, false); + APFloat SNaN = APFloat::getSNaN(APFloat::IEEEsingle, false); + APFloat PNormalValue = APFloat(APFloat::IEEEsingle, "0x1p+0"); + APFloat MNormalValue = APFloat(APFloat::IEEEsingle, "-0x1p+0"); + APFloat PLargestValue = APFloat::getLargest(APFloat::IEEEsingle, false); + APFloat MLargestValue = APFloat::getLargest(APFloat::IEEEsingle, true); + APFloat PSmallestValue = APFloat::getSmallest(APFloat::IEEEsingle, false); + APFloat MSmallestValue = APFloat::getSmallest(APFloat::IEEEsingle, true); + APFloat PSmallestNormalized = + APFloat::getSmallestNormalized(APFloat::IEEEsingle, false); + APFloat MSmallestNormalized = + APFloat::getSmallestNormalized(APFloat::IEEEsingle, true); + + const int OverflowStatus = APFloat::opOverflow | APFloat::opInexact; + + const unsigned NumTests = 169; + struct { + APFloat x; + APFloat y; + const char *result; + int status; + int category; + } SpecialCaseTests[NumTests] = { + { PInf, PInf, "inf", APFloat::opOK, APFloat::fcInfinity }, + { PInf, MInf, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, + { PInf, PZero, "inf", APFloat::opOK, APFloat::fcInfinity }, + { PInf, MZero, "inf", APFloat::opOK, APFloat::fcInfinity }, + { PInf, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, +#if 0 + // See Note 1. + { PInf, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, +#endif + { PInf, PNormalValue, "inf", APFloat::opOK, APFloat::fcInfinity }, + { PInf, MNormalValue, "inf", APFloat::opOK, APFloat::fcInfinity }, + { PInf, PLargestValue, "inf", APFloat::opOK, APFloat::fcInfinity }, + { PInf, MLargestValue, "inf", APFloat::opOK, APFloat::fcInfinity }, + { PInf, PSmallestValue, "inf", APFloat::opOK, APFloat::fcInfinity }, + { PInf, MSmallestValue, "inf", APFloat::opOK, APFloat::fcInfinity }, + { PInf, PSmallestNormalized, "inf", APFloat::opOK, APFloat::fcInfinity }, + { PInf, MSmallestNormalized, "inf", APFloat::opOK, APFloat::fcInfinity }, + { MInf, PInf, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, + { MInf, MInf, "-inf", APFloat::opOK, APFloat::fcInfinity }, + { MInf, PZero, "-inf", APFloat::opOK, APFloat::fcInfinity }, + { MInf, MZero, "-inf", APFloat::opOK, APFloat::fcInfinity }, + { MInf, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, +#if 0 + // See Note 1. + { MInf, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, +#endif + { MInf, PNormalValue, "-inf", APFloat::opOK, APFloat::fcInfinity }, + { MInf, MNormalValue, "-inf", APFloat::opOK, APFloat::fcInfinity }, + { MInf, PLargestValue, "-inf", APFloat::opOK, APFloat::fcInfinity }, + { MInf, MLargestValue, "-inf", APFloat::opOK, APFloat::fcInfinity }, + { MInf, PSmallestValue, "-inf", APFloat::opOK, APFloat::fcInfinity }, + { MInf, MSmallestValue, "-inf", APFloat::opOK, APFloat::fcInfinity }, + { MInf, PSmallestNormalized, "-inf", APFloat::opOK, APFloat::fcInfinity }, + { MInf, MSmallestNormalized, "-inf", APFloat::opOK, APFloat::fcInfinity }, + { PZero, PInf, "inf", APFloat::opOK, APFloat::fcInfinity }, + { PZero, MInf, "-inf", APFloat::opOK, APFloat::fcInfinity }, + { PZero, PZero, "0x0p+0", APFloat::opOK, APFloat::fcZero }, + { PZero, MZero, "0x0p+0", APFloat::opOK, APFloat::fcZero }, + { PZero, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, +#if 0 + // See Note 1. + { PZero, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, +#endif + { PZero, PNormalValue, "0x1p+0", APFloat::opOK, APFloat::fcNormal }, + { PZero, MNormalValue, "-0x1p+0", APFloat::opOK, APFloat::fcNormal }, + { PZero, PLargestValue, "0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal }, + { PZero, MLargestValue, "-0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal }, + { PZero, PSmallestValue, "0x1p-149", APFloat::opOK, APFloat::fcNormal }, + { PZero, MSmallestValue, "-0x1p-149", APFloat::opOK, APFloat::fcNormal }, + { PZero, PSmallestNormalized, "0x1p-126", APFloat::opOK, APFloat::fcNormal }, + { PZero, MSmallestNormalized, "-0x1p-126", APFloat::opOK, APFloat::fcNormal }, + { MZero, PInf, "inf", APFloat::opOK, APFloat::fcInfinity }, + { MZero, MInf, "-inf", APFloat::opOK, APFloat::fcInfinity }, + { MZero, PZero, "0x0p+0", APFloat::opOK, APFloat::fcZero }, + { MZero, MZero, "-0x0p+0", APFloat::opOK, APFloat::fcZero }, + { MZero, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, +#if 0 + // See Note 1. + { MZero, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, +#endif + { MZero, PNormalValue, "0x1p+0", APFloat::opOK, APFloat::fcNormal }, + { MZero, MNormalValue, "-0x1p+0", APFloat::opOK, APFloat::fcNormal }, + { MZero, PLargestValue, "0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal }, + { MZero, MLargestValue, "-0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal }, + { MZero, PSmallestValue, "0x1p-149", APFloat::opOK, APFloat::fcNormal }, + { MZero, MSmallestValue, "-0x1p-149", APFloat::opOK, APFloat::fcNormal }, + { MZero, PSmallestNormalized, "0x1p-126", APFloat::opOK, APFloat::fcNormal }, + { MZero, MSmallestNormalized, "-0x1p-126", APFloat::opOK, APFloat::fcNormal }, + { QNaN, PInf, "nan", APFloat::opOK, APFloat::fcNaN }, + { QNaN, MInf, "nan", APFloat::opOK, APFloat::fcNaN }, + { QNaN, PZero, "nan", APFloat::opOK, APFloat::fcNaN }, + { QNaN, MZero, "nan", APFloat::opOK, APFloat::fcNaN }, + { QNaN, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, +#if 0 + // See Note 1. + { QNaN, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, +#endif + { QNaN, PNormalValue, "nan", APFloat::opOK, APFloat::fcNaN }, + { QNaN, MNormalValue, "nan", APFloat::opOK, APFloat::fcNaN }, + { QNaN, PLargestValue, "nan", APFloat::opOK, APFloat::fcNaN }, + { QNaN, MLargestValue, "nan", APFloat::opOK, APFloat::fcNaN }, + { QNaN, PSmallestValue, "nan", APFloat::opOK, APFloat::fcNaN }, + { QNaN, MSmallestValue, "nan", APFloat::opOK, APFloat::fcNaN }, + { QNaN, PSmallestNormalized, "nan", APFloat::opOK, APFloat::fcNaN }, + { QNaN, MSmallestNormalized, "nan", APFloat::opOK, APFloat::fcNaN }, +#if 0 + // See Note 1. + { SNaN, PInf, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, + { SNaN, MInf, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, + { SNaN, PZero, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, + { SNaN, MZero, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, + { SNaN, QNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, + { SNaN, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, + { SNaN, PNormalValue, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, + { SNaN, MNormalValue, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, + { SNaN, PLargestValue, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, + { SNaN, MLargestValue, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, + { SNaN, PSmallestValue, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, + { SNaN, MSmallestValue, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, + { SNaN, PSmallestNormalized, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, + { SNaN, MSmallestNormalized, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, +#endif + { PNormalValue, PInf, "inf", APFloat::opOK, APFloat::fcInfinity }, + { PNormalValue, MInf, "-inf", APFloat::opOK, APFloat::fcInfinity }, + { PNormalValue, PZero, "0x1p+0", APFloat::opOK, APFloat::fcNormal }, + { PNormalValue, MZero, "0x1p+0", APFloat::opOK, APFloat::fcNormal }, + { PNormalValue, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, +#if 0 + // See Note 1. + { PNormalValue, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, +#endif + { PNormalValue, PNormalValue, "0x1p+1", APFloat::opOK, APFloat::fcNormal }, + { PNormalValue, MNormalValue, "0x0p+0", APFloat::opOK, APFloat::fcZero }, + { PNormalValue, PLargestValue, "0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, + { PNormalValue, MLargestValue, "-0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, + { PNormalValue, PSmallestValue, "0x1p+0", APFloat::opInexact, APFloat::fcNormal }, + { PNormalValue, MSmallestValue, "0x1p+0", APFloat::opInexact, APFloat::fcNormal }, + { PNormalValue, PSmallestNormalized, "0x1p+0", APFloat::opInexact, APFloat::fcNormal }, + { PNormalValue, MSmallestNormalized, "0x1p+0", APFloat::opInexact, APFloat::fcNormal }, + { MNormalValue, PInf, "inf", APFloat::opOK, APFloat::fcInfinity }, + { MNormalValue, MInf, "-inf", APFloat::opOK, APFloat::fcInfinity }, + { MNormalValue, PZero, "-0x1p+0", APFloat::opOK, APFloat::fcNormal }, + { MNormalValue, MZero, "-0x1p+0", APFloat::opOK, APFloat::fcNormal }, + { MNormalValue, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, +#if 0 + // See Note 1. + { MNormalValue, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, +#endif + { MNormalValue, PNormalValue, "0x0p+0", APFloat::opOK, APFloat::fcZero }, + { MNormalValue, MNormalValue, "-0x1p+1", APFloat::opOK, APFloat::fcNormal }, + { MNormalValue, PLargestValue, "0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, + { MNormalValue, MLargestValue, "-0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, + { MNormalValue, PSmallestValue, "-0x1p+0", APFloat::opInexact, APFloat::fcNormal }, + { MNormalValue, MSmallestValue, "-0x1p+0", APFloat::opInexact, APFloat::fcNormal }, + { MNormalValue, PSmallestNormalized, "-0x1p+0", APFloat::opInexact, APFloat::fcNormal }, + { MNormalValue, MSmallestNormalized, "-0x1p+0", APFloat::opInexact, APFloat::fcNormal }, + { PLargestValue, PInf, "inf", APFloat::opOK, APFloat::fcInfinity }, + { PLargestValue, MInf, "-inf", APFloat::opOK, APFloat::fcInfinity }, + { PLargestValue, PZero, "0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal }, + { PLargestValue, MZero, "0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal }, + { PLargestValue, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, +#if 0 + // See Note 1. + { PLargestValue, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, +#endif + { PLargestValue, PNormalValue, "0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, + { PLargestValue, MNormalValue, "0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, + { PLargestValue, PLargestValue, "inf", OverflowStatus, APFloat::fcInfinity }, + { PLargestValue, MLargestValue, "0x0p+0", APFloat::opOK, APFloat::fcZero }, + { PLargestValue, PSmallestValue, "0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, + { PLargestValue, MSmallestValue, "0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, + { PLargestValue, PSmallestNormalized, "0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, + { PLargestValue, MSmallestNormalized, "0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, + { MLargestValue, PInf, "inf", APFloat::opOK, APFloat::fcInfinity }, + { MLargestValue, MInf, "-inf", APFloat::opOK, APFloat::fcInfinity }, + { MLargestValue, PZero, "-0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal }, + { MLargestValue, MZero, "-0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal }, + { MLargestValue, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, +#if 0 + // See Note 1. + { MLargestValue, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, +#endif + { MLargestValue, PNormalValue, "-0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, + { MLargestValue, MNormalValue, "-0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, + { MLargestValue, PLargestValue, "0x0p+0", APFloat::opOK, APFloat::fcZero }, + { MLargestValue, MLargestValue, "-inf", OverflowStatus, APFloat::fcInfinity }, + { MLargestValue, PSmallestValue, "-0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, + { MLargestValue, MSmallestValue, "-0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, + { MLargestValue, PSmallestNormalized, "-0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, + { MLargestValue, MSmallestNormalized, "-0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, + { PSmallestValue, PInf, "inf", APFloat::opOK, APFloat::fcInfinity }, + { PSmallestValue, MInf, "-inf", APFloat::opOK, APFloat::fcInfinity }, + { PSmallestValue, PZero, "0x1p-149", APFloat::opOK, APFloat::fcNormal }, + { PSmallestValue, MZero, "0x1p-149", APFloat::opOK, APFloat::fcNormal }, + { PSmallestValue, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, +#if 0 + // See Note 1. + { PSmallestValue, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, +#endif + { PSmallestValue, PNormalValue, "0x1p+0", APFloat::opInexact, APFloat::fcNormal }, + { PSmallestValue, MNormalValue, "-0x1p+0", APFloat::opInexact, APFloat::fcNormal }, + { PSmallestValue, PLargestValue, "0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, + { PSmallestValue, MLargestValue, "-0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, + { PSmallestValue, PSmallestValue, "0x1p-148", APFloat::opOK, APFloat::fcNormal }, + { PSmallestValue, MSmallestValue, "0x0p+0", APFloat::opOK, APFloat::fcZero }, + { PSmallestValue, PSmallestNormalized, "0x1.000002p-126", APFloat::opOK, APFloat::fcNormal }, + { PSmallestValue, MSmallestNormalized, "-0x1.fffffcp-127", APFloat::opOK, APFloat::fcNormal }, + { MSmallestValue, PInf, "inf", APFloat::opOK, APFloat::fcInfinity }, + { MSmallestValue, MInf, "-inf", APFloat::opOK, APFloat::fcInfinity }, + { MSmallestValue, PZero, "-0x1p-149", APFloat::opOK, APFloat::fcNormal }, + { MSmallestValue, MZero, "-0x1p-149", APFloat::opOK, APFloat::fcNormal }, + { MSmallestValue, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, +#if 0 + // See Note 1. + { MSmallestValue, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, +#endif + { MSmallestValue, PNormalValue, "0x1p+0", APFloat::opInexact, APFloat::fcNormal }, + { MSmallestValue, MNormalValue, "-0x1p+0", APFloat::opInexact, APFloat::fcNormal }, + { MSmallestValue, PLargestValue, "0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, + { MSmallestValue, MLargestValue, "-0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, + { MSmallestValue, PSmallestValue, "0x0p+0", APFloat::opOK, APFloat::fcZero }, + { MSmallestValue, MSmallestValue, "-0x1p-148", APFloat::opOK, APFloat::fcNormal }, + { MSmallestValue, PSmallestNormalized, "0x1.fffffcp-127", APFloat::opOK, APFloat::fcNormal }, + { MSmallestValue, MSmallestNormalized, "-0x1.000002p-126", APFloat::opOK, APFloat::fcNormal }, + { PSmallestNormalized, PInf, "inf", APFloat::opOK, APFloat::fcInfinity }, + { PSmallestNormalized, MInf, "-inf", APFloat::opOK, APFloat::fcInfinity }, + { PSmallestNormalized, PZero, "0x1p-126", APFloat::opOK, APFloat::fcNormal }, + { PSmallestNormalized, MZero, "0x1p-126", APFloat::opOK, APFloat::fcNormal }, + { PSmallestNormalized, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, +#if 0 +// See Note 1. + { PSmallestNormalized, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, +#endif + { PSmallestNormalized, PNormalValue, "0x1p+0", APFloat::opInexact, APFloat::fcNormal }, + { PSmallestNormalized, MNormalValue, "-0x1p+0", APFloat::opInexact, APFloat::fcNormal }, + { PSmallestNormalized, PLargestValue, "0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, + { PSmallestNormalized, MLargestValue, "-0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, + { PSmallestNormalized, PSmallestValue, "0x1.000002p-126", APFloat::opOK, APFloat::fcNormal }, + { PSmallestNormalized, MSmallestValue, "0x1.fffffcp-127", APFloat::opOK, APFloat::fcNormal }, + { PSmallestNormalized, PSmallestNormalized, "0x1p-125", APFloat::opOK, APFloat::fcNormal }, + { PSmallestNormalized, MSmallestNormalized, "0x0p+0", APFloat::opOK, APFloat::fcZero }, + { MSmallestNormalized, PInf, "inf", APFloat::opOK, APFloat::fcInfinity }, + { MSmallestNormalized, MInf, "-inf", APFloat::opOK, APFloat::fcInfinity }, + { MSmallestNormalized, PZero, "-0x1p-126", APFloat::opOK, APFloat::fcNormal }, + { MSmallestNormalized, MZero, "-0x1p-126", APFloat::opOK, APFloat::fcNormal }, + { MSmallestNormalized, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, +#if 0 + // See Note 1. + { MSmallestNormalized, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, +#endif + { MSmallestNormalized, PNormalValue, "0x1p+0", APFloat::opInexact, APFloat::fcNormal }, + { MSmallestNormalized, MNormalValue, "-0x1p+0", APFloat::opInexact, APFloat::fcNormal }, + { MSmallestNormalized, PLargestValue, "0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, + { MSmallestNormalized, MLargestValue, "-0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, + { MSmallestNormalized, PSmallestValue, "-0x1.fffffcp-127", APFloat::opOK, APFloat::fcNormal }, + { MSmallestNormalized, MSmallestValue, "-0x1.000002p-126", APFloat::opOK, APFloat::fcNormal }, + { MSmallestNormalized, PSmallestNormalized, "0x0p+0", APFloat::opOK, APFloat::fcZero }, + { MSmallestNormalized, MSmallestNormalized, "-0x1p-125", APFloat::opOK, APFloat::fcNormal } + }; + + for (size_t i = 0; i < NumTests; ++i) { + APFloat x(SpecialCaseTests[i].x); + APFloat y(SpecialCaseTests[i].y); + APFloat::opStatus status = x.add(y, APFloat::rmNearestTiesToEven); + + APFloat result(APFloat::IEEEsingle, SpecialCaseTests[i].result); + + EXPECT_TRUE(result.bitwiseIsEqual(x)); + EXPECT_TRUE((int)status == SpecialCaseTests[i].status); + EXPECT_TRUE((int)x.getCategory() == SpecialCaseTests[i].category); + } +} + +TEST(APFloatTest, subtract) { + // Test Special Cases against each other and normal values. + + // TODOS/NOTES: + // 1. Since we perform only default exception handling all operations with + // signaling NaNs should have a result that is a quiet NaN. Currently they + // return sNaN. + + APFloat PInf = APFloat::getInf(APFloat::IEEEsingle, false); + APFloat MInf = APFloat::getInf(APFloat::IEEEsingle, true); + APFloat PZero = APFloat::getZero(APFloat::IEEEsingle, false); + APFloat MZero = APFloat::getZero(APFloat::IEEEsingle, true); + APFloat QNaN = APFloat::getNaN(APFloat::IEEEsingle, false); + APFloat SNaN = APFloat::getSNaN(APFloat::IEEEsingle, false); + APFloat PNormalValue = APFloat(APFloat::IEEEsingle, "0x1p+0"); + APFloat MNormalValue = APFloat(APFloat::IEEEsingle, "-0x1p+0"); + APFloat PLargestValue = APFloat::getLargest(APFloat::IEEEsingle, false); + APFloat MLargestValue = APFloat::getLargest(APFloat::IEEEsingle, true); + APFloat PSmallestValue = APFloat::getSmallest(APFloat::IEEEsingle, false); + APFloat MSmallestValue = APFloat::getSmallest(APFloat::IEEEsingle, true); + APFloat PSmallestNormalized = + APFloat::getSmallestNormalized(APFloat::IEEEsingle, false); + APFloat MSmallestNormalized = + APFloat::getSmallestNormalized(APFloat::IEEEsingle, true); + + const int OverflowStatus = APFloat::opOverflow | APFloat::opInexact; + + const unsigned NumTests = 169; + struct { + APFloat x; + APFloat y; + const char *result; + int status; + int category; + } SpecialCaseTests[NumTests] = { + { PInf, PInf, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, + { PInf, MInf, "inf", APFloat::opOK, APFloat::fcInfinity }, + { PInf, PZero, "inf", APFloat::opOK, APFloat::fcInfinity }, + { PInf, MZero, "inf", APFloat::opOK, APFloat::fcInfinity }, + { PInf, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, +#if 0 +// See Note 1. + { PInf, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, +#endif + { PInf, PNormalValue, "inf", APFloat::opOK, APFloat::fcInfinity }, + { PInf, MNormalValue, "inf", APFloat::opOK, APFloat::fcInfinity }, + { PInf, PLargestValue, "inf", APFloat::opOK, APFloat::fcInfinity }, + { PInf, MLargestValue, "inf", APFloat::opOK, APFloat::fcInfinity }, + { PInf, PSmallestValue, "inf", APFloat::opOK, APFloat::fcInfinity }, + { PInf, MSmallestValue, "inf", APFloat::opOK, APFloat::fcInfinity }, + { PInf, PSmallestNormalized, "inf", APFloat::opOK, APFloat::fcInfinity }, + { PInf, MSmallestNormalized, "inf", APFloat::opOK, APFloat::fcInfinity }, + { MInf, PInf, "-inf", APFloat::opOK, APFloat::fcInfinity }, + { MInf, MInf, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, + { MInf, PZero, "-inf", APFloat::opOK, APFloat::fcInfinity }, + { MInf, MZero, "-inf", APFloat::opOK, APFloat::fcInfinity }, + { MInf, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, +#if 0 +// See Note 1. + { MInf, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, +#endif + { MInf, PNormalValue, "-inf", APFloat::opOK, APFloat::fcInfinity }, + { MInf, MNormalValue, "-inf", APFloat::opOK, APFloat::fcInfinity }, + { MInf, PLargestValue, "-inf", APFloat::opOK, APFloat::fcInfinity }, + { MInf, MLargestValue, "-inf", APFloat::opOK, APFloat::fcInfinity }, + { MInf, PSmallestValue, "-inf", APFloat::opOK, APFloat::fcInfinity }, + { MInf, MSmallestValue, "-inf", APFloat::opOK, APFloat::fcInfinity }, + { MInf, PSmallestNormalized, "-inf", APFloat::opOK, APFloat::fcInfinity }, + { MInf, MSmallestNormalized, "-inf", APFloat::opOK, APFloat::fcInfinity }, + { PZero, PInf, "-inf", APFloat::opOK, APFloat::fcInfinity }, + { PZero, MInf, "inf", APFloat::opOK, APFloat::fcInfinity }, + { PZero, PZero, "0x0p+0", APFloat::opOK, APFloat::fcZero }, + { PZero, MZero, "0x0p+0", APFloat::opOK, APFloat::fcZero }, + { PZero, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, +#if 0 +// See Note 1. + { PZero, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, +#endif + { PZero, PNormalValue, "-0x1p+0", APFloat::opOK, APFloat::fcNormal }, + { PZero, MNormalValue, "0x1p+0", APFloat::opOK, APFloat::fcNormal }, + { PZero, PLargestValue, "-0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal }, + { PZero, MLargestValue, "0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal }, + { PZero, PSmallestValue, "-0x1p-149", APFloat::opOK, APFloat::fcNormal }, + { PZero, MSmallestValue, "0x1p-149", APFloat::opOK, APFloat::fcNormal }, + { PZero, PSmallestNormalized, "-0x1p-126", APFloat::opOK, APFloat::fcNormal }, + { PZero, MSmallestNormalized, "0x1p-126", APFloat::opOK, APFloat::fcNormal }, + { MZero, PInf, "-inf", APFloat::opOK, APFloat::fcInfinity }, + { MZero, MInf, "inf", APFloat::opOK, APFloat::fcInfinity }, + { MZero, PZero, "-0x0p+0", APFloat::opOK, APFloat::fcZero }, + { MZero, MZero, "0x0p+0", APFloat::opOK, APFloat::fcZero }, + { MZero, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, +#if 0 +// See Note 1. + { MZero, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, +#endif + { MZero, PNormalValue, "-0x1p+0", APFloat::opOK, APFloat::fcNormal }, + { MZero, MNormalValue, "0x1p+0", APFloat::opOK, APFloat::fcNormal }, + { MZero, PLargestValue, "-0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal }, + { MZero, MLargestValue, "0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal }, + { MZero, PSmallestValue, "-0x1p-149", APFloat::opOK, APFloat::fcNormal }, + { MZero, MSmallestValue, "0x1p-149", APFloat::opOK, APFloat::fcNormal }, + { MZero, PSmallestNormalized, "-0x1p-126", APFloat::opOK, APFloat::fcNormal }, + { MZero, MSmallestNormalized, "0x1p-126", APFloat::opOK, APFloat::fcNormal }, + { QNaN, PInf, "nan", APFloat::opOK, APFloat::fcNaN }, + { QNaN, MInf, "nan", APFloat::opOK, APFloat::fcNaN }, + { QNaN, PZero, "nan", APFloat::opOK, APFloat::fcNaN }, + { QNaN, MZero, "nan", APFloat::opOK, APFloat::fcNaN }, + { QNaN, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, +#if 0 +// See Note 1. + { QNaN, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, +#endif + { QNaN, PNormalValue, "nan", APFloat::opOK, APFloat::fcNaN }, + { QNaN, MNormalValue, "nan", APFloat::opOK, APFloat::fcNaN }, + { QNaN, PLargestValue, "nan", APFloat::opOK, APFloat::fcNaN }, + { QNaN, MLargestValue, "nan", APFloat::opOK, APFloat::fcNaN }, + { QNaN, PSmallestValue, "nan", APFloat::opOK, APFloat::fcNaN }, + { QNaN, MSmallestValue, "nan", APFloat::opOK, APFloat::fcNaN }, + { QNaN, PSmallestNormalized, "nan", APFloat::opOK, APFloat::fcNaN }, + { QNaN, MSmallestNormalized, "nan", APFloat::opOK, APFloat::fcNaN }, +#if 0 +// See Note 1. + { SNaN, PInf, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, + { SNaN, MInf, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, + { SNaN, PZero, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, + { SNaN, MZero, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, + { SNaN, QNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, + { SNaN, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, + { SNaN, PNormalValue, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, + { SNaN, MNormalValue, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, + { SNaN, PLargestValue, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, + { SNaN, MLargestValue, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, + { SNaN, PSmallestValue, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, + { SNaN, MSmallestValue, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, + { SNaN, PSmallestNormalized, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, + { SNaN, MSmallestNormalized, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, +#endif + { PNormalValue, PInf, "-inf", APFloat::opOK, APFloat::fcInfinity }, + { PNormalValue, MInf, "inf", APFloat::opOK, APFloat::fcInfinity }, + { PNormalValue, PZero, "0x1p+0", APFloat::opOK, APFloat::fcNormal }, + { PNormalValue, MZero, "0x1p+0", APFloat::opOK, APFloat::fcNormal }, + { PNormalValue, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, +#if 0 +// See Note 1. + { PNormalValue, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, +#endif + { PNormalValue, PNormalValue, "0x0p+0", APFloat::opOK, APFloat::fcZero }, + { PNormalValue, MNormalValue, "0x1p+1", APFloat::opOK, APFloat::fcNormal }, + { PNormalValue, PLargestValue, "-0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, + { PNormalValue, MLargestValue, "0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, + { PNormalValue, PSmallestValue, "0x1p+0", APFloat::opInexact, APFloat::fcNormal }, + { PNormalValue, MSmallestValue, "0x1p+0", APFloat::opInexact, APFloat::fcNormal }, + { PNormalValue, PSmallestNormalized, "0x1p+0", APFloat::opInexact, APFloat::fcNormal }, + { PNormalValue, MSmallestNormalized, "0x1p+0", APFloat::opInexact, APFloat::fcNormal }, + { MNormalValue, PInf, "-inf", APFloat::opOK, APFloat::fcInfinity }, + { MNormalValue, MInf, "inf", APFloat::opOK, APFloat::fcInfinity }, + { MNormalValue, PZero, "-0x1p+0", APFloat::opOK, APFloat::fcNormal }, + { MNormalValue, MZero, "-0x1p+0", APFloat::opOK, APFloat::fcNormal }, + { MNormalValue, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, +#if 0 +// See Note 1. + { MNormalValue, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, +#endif + { MNormalValue, PNormalValue, "-0x1p+1", APFloat::opOK, APFloat::fcNormal }, + { MNormalValue, MNormalValue, "0x0p+0", APFloat::opOK, APFloat::fcZero }, + { MNormalValue, PLargestValue, "-0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, + { MNormalValue, MLargestValue, "0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, + { MNormalValue, PSmallestValue, "-0x1p+0", APFloat::opInexact, APFloat::fcNormal }, + { MNormalValue, MSmallestValue, "-0x1p+0", APFloat::opInexact, APFloat::fcNormal }, + { MNormalValue, PSmallestNormalized, "-0x1p+0", APFloat::opInexact, APFloat::fcNormal }, + { MNormalValue, MSmallestNormalized, "-0x1p+0", APFloat::opInexact, APFloat::fcNormal }, + { PLargestValue, PInf, "-inf", APFloat::opOK, APFloat::fcInfinity }, + { PLargestValue, MInf, "inf", APFloat::opOK, APFloat::fcInfinity }, + { PLargestValue, PZero, "0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal }, + { PLargestValue, MZero, "0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal }, + { PLargestValue, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, +#if 0 +// See Note 1. + { PLargestValue, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, +#endif + { PLargestValue, PNormalValue, "0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, + { PLargestValue, MNormalValue, "0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, + { PLargestValue, PLargestValue, "0x0p+0", APFloat::opOK, APFloat::fcZero }, + { PLargestValue, MLargestValue, "inf", OverflowStatus, APFloat::fcInfinity }, + { PLargestValue, PSmallestValue, "0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, + { PLargestValue, MSmallestValue, "0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, + { PLargestValue, PSmallestNormalized, "0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, + { PLargestValue, MSmallestNormalized, "0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, + { MLargestValue, PInf, "-inf", APFloat::opOK, APFloat::fcInfinity }, + { MLargestValue, MInf, "inf", APFloat::opOK, APFloat::fcInfinity }, + { MLargestValue, PZero, "-0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal }, + { MLargestValue, MZero, "-0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal }, + { MLargestValue, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, +#if 0 +// See Note 1. + { MLargestValue, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, +#endif + { MLargestValue, PNormalValue, "-0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, + { MLargestValue, MNormalValue, "-0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, + { MLargestValue, PLargestValue, "-inf", OverflowStatus, APFloat::fcInfinity }, + { MLargestValue, MLargestValue, "0x0p+0", APFloat::opOK, APFloat::fcZero }, + { MLargestValue, PSmallestValue, "-0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, + { MLargestValue, MSmallestValue, "-0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, + { MLargestValue, PSmallestNormalized, "-0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, + { MLargestValue, MSmallestNormalized, "-0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, + { PSmallestValue, PInf, "-inf", APFloat::opOK, APFloat::fcInfinity }, + { PSmallestValue, MInf, "inf", APFloat::opOK, APFloat::fcInfinity }, + { PSmallestValue, PZero, "0x1p-149", APFloat::opOK, APFloat::fcNormal }, + { PSmallestValue, MZero, "0x1p-149", APFloat::opOK, APFloat::fcNormal }, + { PSmallestValue, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, +#if 0 +// See Note 1. + { PSmallestValue, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, +#endif + { PSmallestValue, PNormalValue, "-0x1p+0", APFloat::opInexact, APFloat::fcNormal }, + { PSmallestValue, MNormalValue, "0x1p+0", APFloat::opInexact, APFloat::fcNormal }, + { PSmallestValue, PLargestValue, "-0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, + { PSmallestValue, MLargestValue, "0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, + { PSmallestValue, PSmallestValue, "0x0p+0", APFloat::opOK, APFloat::fcZero }, + { PSmallestValue, MSmallestValue, "0x1p-148", APFloat::opOK, APFloat::fcNormal }, + { PSmallestValue, PSmallestNormalized, "-0x1.fffffcp-127", APFloat::opOK, APFloat::fcNormal }, + { PSmallestValue, MSmallestNormalized, "0x1.000002p-126", APFloat::opOK, APFloat::fcNormal }, + { MSmallestValue, PInf, "-inf", APFloat::opOK, APFloat::fcInfinity }, + { MSmallestValue, MInf, "inf", APFloat::opOK, APFloat::fcInfinity }, + { MSmallestValue, PZero, "-0x1p-149", APFloat::opOK, APFloat::fcNormal }, + { MSmallestValue, MZero, "-0x1p-149", APFloat::opOK, APFloat::fcNormal }, + { MSmallestValue, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, +#if 0 +// See Note 1. + { MSmallestValue, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, +#endif + { MSmallestValue, PNormalValue, "-0x1p+0", APFloat::opInexact, APFloat::fcNormal }, + { MSmallestValue, MNormalValue, "0x1p+0", APFloat::opInexact, APFloat::fcNormal }, + { MSmallestValue, PLargestValue, "-0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, + { MSmallestValue, MLargestValue, "0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, + { MSmallestValue, PSmallestValue, "-0x1p-148", APFloat::opOK, APFloat::fcNormal }, + { MSmallestValue, MSmallestValue, "0x0p+0", APFloat::opOK, APFloat::fcZero }, + { MSmallestValue, PSmallestNormalized, "-0x1.000002p-126", APFloat::opOK, APFloat::fcNormal }, + { MSmallestValue, MSmallestNormalized, "0x1.fffffcp-127", APFloat::opOK, APFloat::fcNormal }, + { PSmallestNormalized, PInf, "-inf", APFloat::opOK, APFloat::fcInfinity }, + { PSmallestNormalized, MInf, "inf", APFloat::opOK, APFloat::fcInfinity }, + { PSmallestNormalized, PZero, "0x1p-126", APFloat::opOK, APFloat::fcNormal }, + { PSmallestNormalized, MZero, "0x1p-126", APFloat::opOK, APFloat::fcNormal }, + { PSmallestNormalized, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, +#if 0 +// See Note 1. + { PSmallestNormalized, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, +#endif + { PSmallestNormalized, PNormalValue, "-0x1p+0", APFloat::opInexact, APFloat::fcNormal }, + { PSmallestNormalized, MNormalValue, "0x1p+0", APFloat::opInexact, APFloat::fcNormal }, + { PSmallestNormalized, PLargestValue, "-0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, + { PSmallestNormalized, MLargestValue, "0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, + { PSmallestNormalized, PSmallestValue, "0x1.fffffcp-127", APFloat::opOK, APFloat::fcNormal }, + { PSmallestNormalized, MSmallestValue, "0x1.000002p-126", APFloat::opOK, APFloat::fcNormal }, + { PSmallestNormalized, PSmallestNormalized, "0x0p+0", APFloat::opOK, APFloat::fcZero }, + { PSmallestNormalized, MSmallestNormalized, "0x1p-125", APFloat::opOK, APFloat::fcNormal }, + { MSmallestNormalized, PInf, "-inf", APFloat::opOK, APFloat::fcInfinity }, + { MSmallestNormalized, MInf, "inf", APFloat::opOK, APFloat::fcInfinity }, + { MSmallestNormalized, PZero, "-0x1p-126", APFloat::opOK, APFloat::fcNormal }, + { MSmallestNormalized, MZero, "-0x1p-126", APFloat::opOK, APFloat::fcNormal }, + { MSmallestNormalized, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, +#if 0 +// See Note 1. + { MSmallestNormalized, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, +#endif + { MSmallestNormalized, PNormalValue, "-0x1p+0", APFloat::opInexact, APFloat::fcNormal }, + { MSmallestNormalized, MNormalValue, "0x1p+0", APFloat::opInexact, APFloat::fcNormal }, + { MSmallestNormalized, PLargestValue, "-0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, + { MSmallestNormalized, MLargestValue, "0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal }, + { MSmallestNormalized, PSmallestValue, "-0x1.000002p-126", APFloat::opOK, APFloat::fcNormal }, + { MSmallestNormalized, MSmallestValue, "-0x1.fffffcp-127", APFloat::opOK, APFloat::fcNormal }, + { MSmallestNormalized, PSmallestNormalized, "-0x1p-125", APFloat::opOK, APFloat::fcNormal }, + { MSmallestNormalized, MSmallestNormalized, "0x0p+0", APFloat::opOK, APFloat::fcZero } + }; + + for (size_t i = 0; i < NumTests; ++i) { + APFloat x(SpecialCaseTests[i].x); + APFloat y(SpecialCaseTests[i].y); + APFloat::opStatus status = x.subtract(y, APFloat::rmNearestTiesToEven); + + APFloat result(APFloat::IEEEsingle, SpecialCaseTests[i].result); + + EXPECT_TRUE(result.bitwiseIsEqual(x)); + EXPECT_TRUE((int)status == SpecialCaseTests[i].status); + EXPECT_TRUE((int)x.getCategory() == SpecialCaseTests[i].category); + } +} + +TEST(APFloatTest, multiply) { + // Test Special Cases against each other and normal values. + + // TODOS/NOTES: + // 1. Since we perform only default exception handling all operations with + // signaling NaNs should have a result that is a quiet NaN. Currently they + // return sNaN. + + APFloat PInf = APFloat::getInf(APFloat::IEEEsingle, false); + APFloat MInf = APFloat::getInf(APFloat::IEEEsingle, true); + APFloat PZero = APFloat::getZero(APFloat::IEEEsingle, false); + APFloat MZero = APFloat::getZero(APFloat::IEEEsingle, true); + APFloat QNaN = APFloat::getNaN(APFloat::IEEEsingle, false); + APFloat SNaN = APFloat::getSNaN(APFloat::IEEEsingle, false); + APFloat PNormalValue = APFloat(APFloat::IEEEsingle, "0x1p+0"); + APFloat MNormalValue = APFloat(APFloat::IEEEsingle, "-0x1p+0"); + APFloat PLargestValue = APFloat::getLargest(APFloat::IEEEsingle, false); + APFloat MLargestValue = APFloat::getLargest(APFloat::IEEEsingle, true); + APFloat PSmallestValue = APFloat::getSmallest(APFloat::IEEEsingle, false); + APFloat MSmallestValue = APFloat::getSmallest(APFloat::IEEEsingle, true); + APFloat PSmallestNormalized = + APFloat::getSmallestNormalized(APFloat::IEEEsingle, false); + APFloat MSmallestNormalized = + APFloat::getSmallestNormalized(APFloat::IEEEsingle, true); + + const int OverflowStatus = APFloat::opOverflow | APFloat::opInexact; + const int UnderflowStatus = APFloat::opUnderflow | APFloat::opInexact; + + const unsigned NumTests = 169; + struct { + APFloat x; + APFloat y; + const char *result; + int status; + int category; + } SpecialCaseTests[NumTests] = { + { PInf, PInf, "inf", APFloat::opOK, APFloat::fcInfinity }, + { PInf, MInf, "-inf", APFloat::opOK, APFloat::fcInfinity }, + { PInf, PZero, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, + { PInf, MZero, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, + { PInf, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, +#if 0 +// See Note 1. + { PInf, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, +#endif + { PInf, PNormalValue, "inf", APFloat::opOK, APFloat::fcInfinity }, + { PInf, MNormalValue, "-inf", APFloat::opOK, APFloat::fcInfinity }, + { PInf, PLargestValue, "inf", APFloat::opOK, APFloat::fcInfinity }, + { PInf, MLargestValue, "-inf", APFloat::opOK, APFloat::fcInfinity }, + { PInf, PSmallestValue, "inf", APFloat::opOK, APFloat::fcInfinity }, + { PInf, MSmallestValue, "-inf", APFloat::opOK, APFloat::fcInfinity }, + { PInf, PSmallestNormalized, "inf", APFloat::opOK, APFloat::fcInfinity }, + { PInf, MSmallestNormalized, "-inf", APFloat::opOK, APFloat::fcInfinity }, + { MInf, PInf, "-inf", APFloat::opOK, APFloat::fcInfinity }, + { MInf, MInf, "inf", APFloat::opOK, APFloat::fcInfinity }, + { MInf, PZero, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, + { MInf, MZero, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, + { MInf, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, +#if 0 +// See Note 1. + { MInf, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, +#endif + { MInf, PNormalValue, "-inf", APFloat::opOK, APFloat::fcInfinity }, + { MInf, MNormalValue, "inf", APFloat::opOK, APFloat::fcInfinity }, + { MInf, PLargestValue, "-inf", APFloat::opOK, APFloat::fcInfinity }, + { MInf, MLargestValue, "inf", APFloat::opOK, APFloat::fcInfinity }, + { MInf, PSmallestValue, "-inf", APFloat::opOK, APFloat::fcInfinity }, + { MInf, MSmallestValue, "inf", APFloat::opOK, APFloat::fcInfinity }, + { MInf, PSmallestNormalized, "-inf", APFloat::opOK, APFloat::fcInfinity }, + { MInf, MSmallestNormalized, "inf", APFloat::opOK, APFloat::fcInfinity }, + { PZero, PInf, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, + { PZero, MInf, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, + { PZero, PZero, "0x0p+0", APFloat::opOK, APFloat::fcZero }, + { PZero, MZero, "-0x0p+0", APFloat::opOK, APFloat::fcZero }, + { PZero, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, +#if 0 +// See Note 1. + { PZero, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, +#endif + { PZero, PNormalValue, "0x0p+0", APFloat::opOK, APFloat::fcZero }, + { PZero, MNormalValue, "-0x0p+0", APFloat::opOK, APFloat::fcZero }, + { PZero, PLargestValue, "0x0p+0", APFloat::opOK, APFloat::fcZero }, + { PZero, MLargestValue, "-0x0p+0", APFloat::opOK, APFloat::fcZero }, + { PZero, PSmallestValue, "0x0p+0", APFloat::opOK, APFloat::fcZero }, + { PZero, MSmallestValue, "-0x0p+0", APFloat::opOK, APFloat::fcZero }, + { PZero, PSmallestNormalized, "0x0p+0", APFloat::opOK, APFloat::fcZero }, + { PZero, MSmallestNormalized, "-0x0p+0", APFloat::opOK, APFloat::fcZero }, + { MZero, PInf, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, + { MZero, MInf, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, + { MZero, PZero, "-0x0p+0", APFloat::opOK, APFloat::fcZero }, + { MZero, MZero, "0x0p+0", APFloat::opOK, APFloat::fcZero }, + { MZero, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, +#if 0 +// See Note 1. + { MZero, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, +#endif + { MZero, PNormalValue, "-0x0p+0", APFloat::opOK, APFloat::fcZero }, + { MZero, MNormalValue, "0x0p+0", APFloat::opOK, APFloat::fcZero }, + { MZero, PLargestValue, "-0x0p+0", APFloat::opOK, APFloat::fcZero }, + { MZero, MLargestValue, "0x0p+0", APFloat::opOK, APFloat::fcZero }, + { MZero, PSmallestValue, "-0x0p+0", APFloat::opOK, APFloat::fcZero }, + { MZero, MSmallestValue, "0x0p+0", APFloat::opOK, APFloat::fcZero }, + { MZero, PSmallestNormalized, "-0x0p+0", APFloat::opOK, APFloat::fcZero }, + { MZero, MSmallestNormalized, "0x0p+0", APFloat::opOK, APFloat::fcZero }, + { QNaN, PInf, "nan", APFloat::opOK, APFloat::fcNaN }, + { QNaN, MInf, "nan", APFloat::opOK, APFloat::fcNaN }, + { QNaN, PZero, "nan", APFloat::opOK, APFloat::fcNaN }, + { QNaN, MZero, "nan", APFloat::opOK, APFloat::fcNaN }, + { QNaN, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, +#if 0 +// See Note 1. + { QNaN, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, +#endif + { QNaN, PNormalValue, "nan", APFloat::opOK, APFloat::fcNaN }, + { QNaN, MNormalValue, "nan", APFloat::opOK, APFloat::fcNaN }, + { QNaN, PLargestValue, "nan", APFloat::opOK, APFloat::fcNaN }, + { QNaN, MLargestValue, "nan", APFloat::opOK, APFloat::fcNaN }, + { QNaN, PSmallestValue, "nan", APFloat::opOK, APFloat::fcNaN }, + { QNaN, MSmallestValue, "nan", APFloat::opOK, APFloat::fcNaN }, + { QNaN, PSmallestNormalized, "nan", APFloat::opOK, APFloat::fcNaN }, + { QNaN, MSmallestNormalized, "nan", APFloat::opOK, APFloat::fcNaN }, +#if 0 +// See Note 1. + { SNaN, PInf, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, + { SNaN, MInf, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, + { SNaN, PZero, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, + { SNaN, MZero, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, + { SNaN, QNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, + { SNaN, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, + { SNaN, PNormalValue, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, + { SNaN, MNormalValue, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, + { SNaN, PLargestValue, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, + { SNaN, MLargestValue, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, + { SNaN, PSmallestValue, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, + { SNaN, MSmallestValue, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, + { SNaN, PSmallestNormalized, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, + { SNaN, MSmallestNormalized, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, +#endif + { PNormalValue, PInf, "inf", APFloat::opOK, APFloat::fcInfinity }, + { PNormalValue, MInf, "-inf", APFloat::opOK, APFloat::fcInfinity }, + { PNormalValue, PZero, "0x0p+0", APFloat::opOK, APFloat::fcZero }, + { PNormalValue, MZero, "-0x0p+0", APFloat::opOK, APFloat::fcZero }, + { PNormalValue, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, +#if 0 +// See Note 1. + { PNormalValue, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, +#endif + { PNormalValue, PNormalValue, "0x1p+0", APFloat::opOK, APFloat::fcNormal }, + { PNormalValue, MNormalValue, "-0x1p+0", APFloat::opOK, APFloat::fcNormal }, + { PNormalValue, PLargestValue, "0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal }, + { PNormalValue, MLargestValue, "-0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal }, + { PNormalValue, PSmallestValue, "0x1p-149", APFloat::opOK, APFloat::fcNormal }, + { PNormalValue, MSmallestValue, "-0x1p-149", APFloat::opOK, APFloat::fcNormal }, + { PNormalValue, PSmallestNormalized, "0x1p-126", APFloat::opOK, APFloat::fcNormal }, + { PNormalValue, MSmallestNormalized, "-0x1p-126", APFloat::opOK, APFloat::fcNormal }, + { MNormalValue, PInf, "-inf", APFloat::opOK, APFloat::fcInfinity }, + { MNormalValue, MInf, "inf", APFloat::opOK, APFloat::fcInfinity }, + { MNormalValue, PZero, "-0x0p+0", APFloat::opOK, APFloat::fcZero }, + { MNormalValue, MZero, "0x0p+0", APFloat::opOK, APFloat::fcZero }, + { MNormalValue, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, +#if 0 +// See Note 1. + { MNormalValue, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, +#endif + { MNormalValue, PNormalValue, "-0x1p+0", APFloat::opOK, APFloat::fcNormal }, + { MNormalValue, MNormalValue, "0x1p+0", APFloat::opOK, APFloat::fcNormal }, + { MNormalValue, PLargestValue, "-0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal }, + { MNormalValue, MLargestValue, "0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal }, + { MNormalValue, PSmallestValue, "-0x1p-149", APFloat::opOK, APFloat::fcNormal }, + { MNormalValue, MSmallestValue, "0x1p-149", APFloat::opOK, APFloat::fcNormal }, + { MNormalValue, PSmallestNormalized, "-0x1p-126", APFloat::opOK, APFloat::fcNormal }, + { MNormalValue, MSmallestNormalized, "0x1p-126", APFloat::opOK, APFloat::fcNormal }, + { PLargestValue, PInf, "inf", APFloat::opOK, APFloat::fcInfinity }, + { PLargestValue, MInf, "-inf", APFloat::opOK, APFloat::fcInfinity }, + { PLargestValue, PZero, "0x0p+0", APFloat::opOK, APFloat::fcZero }, + { PLargestValue, MZero, "-0x0p+0", APFloat::opOK, APFloat::fcZero }, + { PLargestValue, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, +#if 0 +// See Note 1. + { PLargestValue, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, +#endif + { PLargestValue, PNormalValue, "0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal }, + { PLargestValue, MNormalValue, "-0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal }, + { PLargestValue, PLargestValue, "inf", OverflowStatus, APFloat::fcInfinity }, + { PLargestValue, MLargestValue, "-inf", OverflowStatus, APFloat::fcInfinity }, + { PLargestValue, PSmallestValue, "0x1.fffffep-22", APFloat::opOK, APFloat::fcNormal }, + { PLargestValue, MSmallestValue, "-0x1.fffffep-22", APFloat::opOK, APFloat::fcNormal }, + { PLargestValue, PSmallestNormalized, "0x1.fffffep+1", APFloat::opOK, APFloat::fcNormal }, + { PLargestValue, MSmallestNormalized, "-0x1.fffffep+1", APFloat::opOK, APFloat::fcNormal }, + { MLargestValue, PInf, "-inf", APFloat::opOK, APFloat::fcInfinity }, + { MLargestValue, MInf, "inf", APFloat::opOK, APFloat::fcInfinity }, + { MLargestValue, PZero, "-0x0p+0", APFloat::opOK, APFloat::fcZero }, + { MLargestValue, MZero, "0x0p+0", APFloat::opOK, APFloat::fcZero }, + { MLargestValue, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, +#if 0 +// See Note 1. + { MLargestValue, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, +#endif + { MLargestValue, PNormalValue, "-0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal }, + { MLargestValue, MNormalValue, "0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal }, + { MLargestValue, PLargestValue, "-inf", OverflowStatus, APFloat::fcInfinity }, + { MLargestValue, MLargestValue, "inf", OverflowStatus, APFloat::fcInfinity }, + { MLargestValue, PSmallestValue, "-0x1.fffffep-22", APFloat::opOK, APFloat::fcNormal }, + { MLargestValue, MSmallestValue, "0x1.fffffep-22", APFloat::opOK, APFloat::fcNormal }, + { MLargestValue, PSmallestNormalized, "-0x1.fffffep+1", APFloat::opOK, APFloat::fcNormal }, + { MLargestValue, MSmallestNormalized, "0x1.fffffep+1", APFloat::opOK, APFloat::fcNormal }, + { PSmallestValue, PInf, "inf", APFloat::opOK, APFloat::fcInfinity }, + { PSmallestValue, MInf, "-inf", APFloat::opOK, APFloat::fcInfinity }, + { PSmallestValue, PZero, "0x0p+0", APFloat::opOK, APFloat::fcZero }, + { PSmallestValue, MZero, "-0x0p+0", APFloat::opOK, APFloat::fcZero }, + { PSmallestValue, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, +#if 0 +// See Note 1. + { PSmallestValue, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, +#endif + { PSmallestValue, PNormalValue, "0x1p-149", APFloat::opOK, APFloat::fcNormal }, + { PSmallestValue, MNormalValue, "-0x1p-149", APFloat::opOK, APFloat::fcNormal }, + { PSmallestValue, PLargestValue, "0x1.fffffep-22", APFloat::opOK, APFloat::fcNormal }, + { PSmallestValue, MLargestValue, "-0x1.fffffep-22", APFloat::opOK, APFloat::fcNormal }, + { PSmallestValue, PSmallestValue, "0x0p+0", UnderflowStatus, APFloat::fcZero }, + { PSmallestValue, MSmallestValue, "-0x0p+0", UnderflowStatus, APFloat::fcZero }, + { PSmallestValue, PSmallestNormalized, "0x0p+0", UnderflowStatus, APFloat::fcZero }, + { PSmallestValue, MSmallestNormalized, "-0x0p+0", UnderflowStatus, APFloat::fcZero }, + { MSmallestValue, PInf, "-inf", APFloat::opOK, APFloat::fcInfinity }, + { MSmallestValue, MInf, "inf", APFloat::opOK, APFloat::fcInfinity }, + { MSmallestValue, PZero, "-0x0p+0", APFloat::opOK, APFloat::fcZero }, + { MSmallestValue, MZero, "0x0p+0", APFloat::opOK, APFloat::fcZero }, + { MSmallestValue, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, +#if 0 +// See Note 1. + { MSmallestValue, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, +#endif + { MSmallestValue, PNormalValue, "-0x1p-149", APFloat::opOK, APFloat::fcNormal }, + { MSmallestValue, MNormalValue, "0x1p-149", APFloat::opOK, APFloat::fcNormal }, + { MSmallestValue, PLargestValue, "-0x1.fffffep-22", APFloat::opOK, APFloat::fcNormal }, + { MSmallestValue, MLargestValue, "0x1.fffffep-22", APFloat::opOK, APFloat::fcNormal }, + { MSmallestValue, PSmallestValue, "-0x0p+0", UnderflowStatus, APFloat::fcZero }, + { MSmallestValue, MSmallestValue, "0x0p+0", UnderflowStatus, APFloat::fcZero }, + { MSmallestValue, PSmallestNormalized, "-0x0p+0", UnderflowStatus, APFloat::fcZero }, + { MSmallestValue, MSmallestNormalized, "0x0p+0", UnderflowStatus, APFloat::fcZero }, + { PSmallestNormalized, PInf, "inf", APFloat::opOK, APFloat::fcInfinity }, + { PSmallestNormalized, MInf, "-inf", APFloat::opOK, APFloat::fcInfinity }, + { PSmallestNormalized, PZero, "0x0p+0", APFloat::opOK, APFloat::fcZero }, + { PSmallestNormalized, MZero, "-0x0p+0", APFloat::opOK, APFloat::fcZero }, + { PSmallestNormalized, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, +#if 0 +// See Note 1. + { PSmallestNormalized, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, +#endif + { PSmallestNormalized, PNormalValue, "0x1p-126", APFloat::opOK, APFloat::fcNormal }, + { PSmallestNormalized, MNormalValue, "-0x1p-126", APFloat::opOK, APFloat::fcNormal }, + { PSmallestNormalized, PLargestValue, "0x1.fffffep+1", APFloat::opOK, APFloat::fcNormal }, + { PSmallestNormalized, MLargestValue, "-0x1.fffffep+1", APFloat::opOK, APFloat::fcNormal }, + { PSmallestNormalized, PSmallestValue, "0x0p+0", UnderflowStatus, APFloat::fcZero }, + { PSmallestNormalized, MSmallestValue, "-0x0p+0", UnderflowStatus, APFloat::fcZero }, + { PSmallestNormalized, PSmallestNormalized, "0x0p+0", UnderflowStatus, APFloat::fcZero }, + { PSmallestNormalized, MSmallestNormalized, "-0x0p+0", UnderflowStatus, APFloat::fcZero }, + { MSmallestNormalized, PInf, "-inf", APFloat::opOK, APFloat::fcInfinity }, + { MSmallestNormalized, MInf, "inf", APFloat::opOK, APFloat::fcInfinity }, + { MSmallestNormalized, PZero, "-0x0p+0", APFloat::opOK, APFloat::fcZero }, + { MSmallestNormalized, MZero, "0x0p+0", APFloat::opOK, APFloat::fcZero }, + { MSmallestNormalized, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, +#if 0 +// See Note 1. + { MSmallestNormalized, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, +#endif + { MSmallestNormalized, PNormalValue, "-0x1p-126", APFloat::opOK, APFloat::fcNormal }, + { MSmallestNormalized, MNormalValue, "0x1p-126", APFloat::opOK, APFloat::fcNormal }, + { MSmallestNormalized, PLargestValue, "-0x1.fffffep+1", APFloat::opOK, APFloat::fcNormal }, + { MSmallestNormalized, MLargestValue, "0x1.fffffep+1", APFloat::opOK, APFloat::fcNormal }, + { MSmallestNormalized, PSmallestValue, "-0x0p+0", UnderflowStatus, APFloat::fcZero }, + { MSmallestNormalized, MSmallestValue, "0x0p+0", UnderflowStatus, APFloat::fcZero }, + { MSmallestNormalized, PSmallestNormalized, "-0x0p+0", UnderflowStatus, APFloat::fcZero }, + { MSmallestNormalized, MSmallestNormalized, "0x0p+0", UnderflowStatus, APFloat::fcZero } + }; + + for (size_t i = 0; i < NumTests; ++i) { + APFloat x(SpecialCaseTests[i].x); + APFloat y(SpecialCaseTests[i].y); + APFloat::opStatus status = x.multiply(y, APFloat::rmNearestTiesToEven); + + APFloat result(APFloat::IEEEsingle, SpecialCaseTests[i].result); + + EXPECT_TRUE(result.bitwiseIsEqual(x)); + EXPECT_TRUE((int)status == SpecialCaseTests[i].status); + EXPECT_TRUE((int)x.getCategory() == SpecialCaseTests[i].category); + } +} + +TEST(APFloatTest, divide) { + // Test Special Cases against each other and normal values. + + // TODOS/NOTES: + // 1. Since we perform only default exception handling all operations with + // signaling NaNs should have a result that is a quiet NaN. Currently they + // return sNaN. + + APFloat PInf = APFloat::getInf(APFloat::IEEEsingle, false); + APFloat MInf = APFloat::getInf(APFloat::IEEEsingle, true); + APFloat PZero = APFloat::getZero(APFloat::IEEEsingle, false); + APFloat MZero = APFloat::getZero(APFloat::IEEEsingle, true); + APFloat QNaN = APFloat::getNaN(APFloat::IEEEsingle, false); + APFloat SNaN = APFloat::getSNaN(APFloat::IEEEsingle, false); + APFloat PNormalValue = APFloat(APFloat::IEEEsingle, "0x1p+0"); + APFloat MNormalValue = APFloat(APFloat::IEEEsingle, "-0x1p+0"); + APFloat PLargestValue = APFloat::getLargest(APFloat::IEEEsingle, false); + APFloat MLargestValue = APFloat::getLargest(APFloat::IEEEsingle, true); + APFloat PSmallestValue = APFloat::getSmallest(APFloat::IEEEsingle, false); + APFloat MSmallestValue = APFloat::getSmallest(APFloat::IEEEsingle, true); + APFloat PSmallestNormalized = + APFloat::getSmallestNormalized(APFloat::IEEEsingle, false); + APFloat MSmallestNormalized = + APFloat::getSmallestNormalized(APFloat::IEEEsingle, true); + + const int OverflowStatus = APFloat::opOverflow | APFloat::opInexact; + const int UnderflowStatus = APFloat::opUnderflow | APFloat::opInexact; + + const unsigned NumTests = 169; + struct { + APFloat x; + APFloat y; + const char *result; + int status; + int category; + } SpecialCaseTests[NumTests] = { + { PInf, PInf, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, + { PInf, MInf, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, + { PInf, PZero, "inf", APFloat::opOK, APFloat::fcInfinity }, + { PInf, MZero, "-inf", APFloat::opOK, APFloat::fcInfinity }, + { PInf, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, +#if 0 +// See Note 1. + { PInf, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, +#endif + { PInf, PNormalValue, "inf", APFloat::opOK, APFloat::fcInfinity }, + { PInf, MNormalValue, "-inf", APFloat::opOK, APFloat::fcInfinity }, + { PInf, PLargestValue, "inf", APFloat::opOK, APFloat::fcInfinity }, + { PInf, MLargestValue, "-inf", APFloat::opOK, APFloat::fcInfinity }, + { PInf, PSmallestValue, "inf", APFloat::opOK, APFloat::fcInfinity }, + { PInf, MSmallestValue, "-inf", APFloat::opOK, APFloat::fcInfinity }, + { PInf, PSmallestNormalized, "inf", APFloat::opOK, APFloat::fcInfinity }, + { PInf, MSmallestNormalized, "-inf", APFloat::opOK, APFloat::fcInfinity }, + { MInf, PInf, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, + { MInf, MInf, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, + { MInf, PZero, "-inf", APFloat::opOK, APFloat::fcInfinity }, + { MInf, MZero, "inf", APFloat::opOK, APFloat::fcInfinity }, + { MInf, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, +#if 0 +// See Note 1. + { MInf, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, +#endif + { MInf, PNormalValue, "-inf", APFloat::opOK, APFloat::fcInfinity }, + { MInf, MNormalValue, "inf", APFloat::opOK, APFloat::fcInfinity }, + { MInf, PLargestValue, "-inf", APFloat::opOK, APFloat::fcInfinity }, + { MInf, MLargestValue, "inf", APFloat::opOK, APFloat::fcInfinity }, + { MInf, PSmallestValue, "-inf", APFloat::opOK, APFloat::fcInfinity }, + { MInf, MSmallestValue, "inf", APFloat::opOK, APFloat::fcInfinity }, + { MInf, PSmallestNormalized, "-inf", APFloat::opOK, APFloat::fcInfinity }, + { MInf, MSmallestNormalized, "inf", APFloat::opOK, APFloat::fcInfinity }, + { PZero, PInf, "0x0p+0", APFloat::opOK, APFloat::fcZero }, + { PZero, MInf, "-0x0p+0", APFloat::opOK, APFloat::fcZero }, + { PZero, PZero, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, + { PZero, MZero, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, + { PZero, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, +#if 0 +// See Note 1. + { PZero, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, +#endif + { PZero, PNormalValue, "0x0p+0", APFloat::opOK, APFloat::fcZero }, + { PZero, MNormalValue, "-0x0p+0", APFloat::opOK, APFloat::fcZero }, + { PZero, PLargestValue, "0x0p+0", APFloat::opOK, APFloat::fcZero }, + { PZero, MLargestValue, "-0x0p+0", APFloat::opOK, APFloat::fcZero }, + { PZero, PSmallestValue, "0x0p+0", APFloat::opOK, APFloat::fcZero }, + { PZero, MSmallestValue, "-0x0p+0", APFloat::opOK, APFloat::fcZero }, + { PZero, PSmallestNormalized, "0x0p+0", APFloat::opOK, APFloat::fcZero }, + { PZero, MSmallestNormalized, "-0x0p+0", APFloat::opOK, APFloat::fcZero }, + { MZero, PInf, "-0x0p+0", APFloat::opOK, APFloat::fcZero }, + { MZero, MInf, "0x0p+0", APFloat::opOK, APFloat::fcZero }, + { MZero, PZero, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, + { MZero, MZero, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, + { MZero, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, +#if 0 +// See Note 1. + { MZero, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, +#endif + { MZero, PNormalValue, "-0x0p+0", APFloat::opOK, APFloat::fcZero }, + { MZero, MNormalValue, "0x0p+0", APFloat::opOK, APFloat::fcZero }, + { MZero, PLargestValue, "-0x0p+0", APFloat::opOK, APFloat::fcZero }, + { MZero, MLargestValue, "0x0p+0", APFloat::opOK, APFloat::fcZero }, + { MZero, PSmallestValue, "-0x0p+0", APFloat::opOK, APFloat::fcZero }, + { MZero, MSmallestValue, "0x0p+0", APFloat::opOK, APFloat::fcZero }, + { MZero, PSmallestNormalized, "-0x0p+0", APFloat::opOK, APFloat::fcZero }, + { MZero, MSmallestNormalized, "0x0p+0", APFloat::opOK, APFloat::fcZero }, + { QNaN, PInf, "nan", APFloat::opOK, APFloat::fcNaN }, + { QNaN, MInf, "nan", APFloat::opOK, APFloat::fcNaN }, + { QNaN, PZero, "nan", APFloat::opOK, APFloat::fcNaN }, + { QNaN, MZero, "nan", APFloat::opOK, APFloat::fcNaN }, + { QNaN, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, +#if 0 +// See Note 1. + { QNaN, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, +#endif + { QNaN, PNormalValue, "nan", APFloat::opOK, APFloat::fcNaN }, + { QNaN, MNormalValue, "nan", APFloat::opOK, APFloat::fcNaN }, + { QNaN, PLargestValue, "nan", APFloat::opOK, APFloat::fcNaN }, + { QNaN, MLargestValue, "nan", APFloat::opOK, APFloat::fcNaN }, + { QNaN, PSmallestValue, "nan", APFloat::opOK, APFloat::fcNaN }, + { QNaN, MSmallestValue, "nan", APFloat::opOK, APFloat::fcNaN }, + { QNaN, PSmallestNormalized, "nan", APFloat::opOK, APFloat::fcNaN }, + { QNaN, MSmallestNormalized, "nan", APFloat::opOK, APFloat::fcNaN }, +#if 0 +// See Note 1. + { SNaN, PInf, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, + { SNaN, MInf, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, + { SNaN, PZero, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, + { SNaN, MZero, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, + { SNaN, QNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, + { SNaN, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, + { SNaN, PNormalValue, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, + { SNaN, MNormalValue, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, + { SNaN, PLargestValue, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, + { SNaN, MLargestValue, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, + { SNaN, PSmallestValue, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, + { SNaN, MSmallestValue, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, + { SNaN, PSmallestNormalized, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, + { SNaN, MSmallestNormalized, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, +#endif + { PNormalValue, PInf, "0x0p+0", APFloat::opOK, APFloat::fcZero }, + { PNormalValue, MInf, "-0x0p+0", APFloat::opOK, APFloat::fcZero }, + { PNormalValue, PZero, "inf", APFloat::opDivByZero, APFloat::fcInfinity }, + { PNormalValue, MZero, "-inf", APFloat::opDivByZero, APFloat::fcInfinity }, + { PNormalValue, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, +#if 0 +// See Note 1. + { PNormalValue, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, +#endif + { PNormalValue, PNormalValue, "0x1p+0", APFloat::opOK, APFloat::fcNormal }, + { PNormalValue, MNormalValue, "-0x1p+0", APFloat::opOK, APFloat::fcNormal }, + { PNormalValue, PLargestValue, "0x1p-128", UnderflowStatus, APFloat::fcNormal }, + { PNormalValue, MLargestValue, "-0x1p-128", UnderflowStatus, APFloat::fcNormal }, + { PNormalValue, PSmallestValue, "inf", OverflowStatus, APFloat::fcInfinity }, + { PNormalValue, MSmallestValue, "-inf", OverflowStatus, APFloat::fcInfinity }, + { PNormalValue, PSmallestNormalized, "0x1p+126", APFloat::opOK, APFloat::fcNormal }, + { PNormalValue, MSmallestNormalized, "-0x1p+126", APFloat::opOK, APFloat::fcNormal }, + { MNormalValue, PInf, "-0x0p+0", APFloat::opOK, APFloat::fcZero }, + { MNormalValue, MInf, "0x0p+0", APFloat::opOK, APFloat::fcZero }, + { MNormalValue, PZero, "-inf", APFloat::opDivByZero, APFloat::fcInfinity }, + { MNormalValue, MZero, "inf", APFloat::opDivByZero, APFloat::fcInfinity }, + { MNormalValue, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, +#if 0 +// See Note 1. + { MNormalValue, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, +#endif + { MNormalValue, PNormalValue, "-0x1p+0", APFloat::opOK, APFloat::fcNormal }, + { MNormalValue, MNormalValue, "0x1p+0", APFloat::opOK, APFloat::fcNormal }, + { MNormalValue, PLargestValue, "-0x1p-128", UnderflowStatus, APFloat::fcNormal }, + { MNormalValue, MLargestValue, "0x1p-128", UnderflowStatus, APFloat::fcNormal }, + { MNormalValue, PSmallestValue, "-inf", OverflowStatus, APFloat::fcInfinity }, + { MNormalValue, MSmallestValue, "inf", OverflowStatus, APFloat::fcInfinity }, + { MNormalValue, PSmallestNormalized, "-0x1p+126", APFloat::opOK, APFloat::fcNormal }, + { MNormalValue, MSmallestNormalized, "0x1p+126", APFloat::opOK, APFloat::fcNormal }, + { PLargestValue, PInf, "0x0p+0", APFloat::opOK, APFloat::fcZero }, + { PLargestValue, MInf, "-0x0p+0", APFloat::opOK, APFloat::fcZero }, + { PLargestValue, PZero, "inf", APFloat::opDivByZero, APFloat::fcInfinity }, + { PLargestValue, MZero, "-inf", APFloat::opDivByZero, APFloat::fcInfinity }, + { PLargestValue, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, +#if 0 +// See Note 1. + { PLargestValue, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, +#endif + { PLargestValue, PNormalValue, "0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal }, + { PLargestValue, MNormalValue, "-0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal }, + { PLargestValue, PLargestValue, "0x1p+0", APFloat::opOK, APFloat::fcNormal }, + { PLargestValue, MLargestValue, "-0x1p+0", APFloat::opOK, APFloat::fcNormal }, + { PLargestValue, PSmallestValue, "inf", OverflowStatus, APFloat::fcInfinity }, + { PLargestValue, MSmallestValue, "-inf", OverflowStatus, APFloat::fcInfinity }, + { PLargestValue, PSmallestNormalized, "inf", OverflowStatus, APFloat::fcInfinity }, + { PLargestValue, MSmallestNormalized, "-inf", OverflowStatus, APFloat::fcInfinity }, + { MLargestValue, PInf, "-0x0p+0", APFloat::opOK, APFloat::fcZero }, + { MLargestValue, MInf, "0x0p+0", APFloat::opOK, APFloat::fcZero }, + { MLargestValue, PZero, "-inf", APFloat::opDivByZero, APFloat::fcInfinity }, + { MLargestValue, MZero, "inf", APFloat::opDivByZero, APFloat::fcInfinity }, + { MLargestValue, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, +#if 0 +// See Note 1. + { MLargestValue, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, +#endif + { MLargestValue, PNormalValue, "-0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal }, + { MLargestValue, MNormalValue, "0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal }, + { MLargestValue, PLargestValue, "-0x1p+0", APFloat::opOK, APFloat::fcNormal }, + { MLargestValue, MLargestValue, "0x1p+0", APFloat::opOK, APFloat::fcNormal }, + { MLargestValue, PSmallestValue, "-inf", OverflowStatus, APFloat::fcInfinity }, + { MLargestValue, MSmallestValue, "inf", OverflowStatus, APFloat::fcInfinity }, + { MLargestValue, PSmallestNormalized, "-inf", OverflowStatus, APFloat::fcInfinity }, + { MLargestValue, MSmallestNormalized, "inf", OverflowStatus, APFloat::fcInfinity }, + { PSmallestValue, PInf, "0x0p+0", APFloat::opOK, APFloat::fcZero }, + { PSmallestValue, MInf, "-0x0p+0", APFloat::opOK, APFloat::fcZero }, + { PSmallestValue, PZero, "inf", APFloat::opDivByZero, APFloat::fcInfinity }, + { PSmallestValue, MZero, "-inf", APFloat::opDivByZero, APFloat::fcInfinity }, + { PSmallestValue, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, +#if 0 +// See Note 1. + { PSmallestValue, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, +#endif + { PSmallestValue, PNormalValue, "0x1p-149", APFloat::opOK, APFloat::fcNormal }, + { PSmallestValue, MNormalValue, "-0x1p-149", APFloat::opOK, APFloat::fcNormal }, + { PSmallestValue, PLargestValue, "0x0p+0", UnderflowStatus, APFloat::fcZero }, + { PSmallestValue, MLargestValue, "-0x0p+0", UnderflowStatus, APFloat::fcZero }, + { PSmallestValue, PSmallestValue, "0x1p+0", APFloat::opOK, APFloat::fcNormal }, + { PSmallestValue, MSmallestValue, "-0x1p+0", APFloat::opOK, APFloat::fcNormal }, + { PSmallestValue, PSmallestNormalized, "0x1p-23", APFloat::opOK, APFloat::fcNormal }, + { PSmallestValue, MSmallestNormalized, "-0x1p-23", APFloat::opOK, APFloat::fcNormal }, + { MSmallestValue, PInf, "-0x0p+0", APFloat::opOK, APFloat::fcZero }, + { MSmallestValue, MInf, "0x0p+0", APFloat::opOK, APFloat::fcZero }, + { MSmallestValue, PZero, "-inf", APFloat::opDivByZero, APFloat::fcInfinity }, + { MSmallestValue, MZero, "inf", APFloat::opDivByZero, APFloat::fcInfinity }, + { MSmallestValue, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, +#if 0 +// See Note 1. + { MSmallestValue, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, +#endif + { MSmallestValue, PNormalValue, "-0x1p-149", APFloat::opOK, APFloat::fcNormal }, + { MSmallestValue, MNormalValue, "0x1p-149", APFloat::opOK, APFloat::fcNormal }, + { MSmallestValue, PLargestValue, "-0x0p+0", UnderflowStatus, APFloat::fcZero }, + { MSmallestValue, MLargestValue, "0x0p+0", UnderflowStatus, APFloat::fcZero }, + { MSmallestValue, PSmallestValue, "-0x1p+0", APFloat::opOK, APFloat::fcNormal }, + { MSmallestValue, MSmallestValue, "0x1p+0", APFloat::opOK, APFloat::fcNormal }, + { MSmallestValue, PSmallestNormalized, "-0x1p-23", APFloat::opOK, APFloat::fcNormal }, + { MSmallestValue, MSmallestNormalized, "0x1p-23", APFloat::opOK, APFloat::fcNormal }, + { PSmallestNormalized, PInf, "0x0p+0", APFloat::opOK, APFloat::fcZero }, + { PSmallestNormalized, MInf, "-0x0p+0", APFloat::opOK, APFloat::fcZero }, + { PSmallestNormalized, PZero, "inf", APFloat::opDivByZero, APFloat::fcInfinity }, + { PSmallestNormalized, MZero, "-inf", APFloat::opDivByZero, APFloat::fcInfinity }, + { PSmallestNormalized, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, +#if 0 +// See Note 1. + { PSmallestNormalized, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, +#endif + { PSmallestNormalized, PNormalValue, "0x1p-126", APFloat::opOK, APFloat::fcNormal }, + { PSmallestNormalized, MNormalValue, "-0x1p-126", APFloat::opOK, APFloat::fcNormal }, + { PSmallestNormalized, PLargestValue, "0x0p+0", UnderflowStatus, APFloat::fcZero }, + { PSmallestNormalized, MLargestValue, "-0x0p+0", UnderflowStatus, APFloat::fcZero }, + { PSmallestNormalized, PSmallestValue, "0x1p+23", APFloat::opOK, APFloat::fcNormal }, + { PSmallestNormalized, MSmallestValue, "-0x1p+23", APFloat::opOK, APFloat::fcNormal }, + { PSmallestNormalized, PSmallestNormalized, "0x1p+0", APFloat::opOK, APFloat::fcNormal }, + { PSmallestNormalized, MSmallestNormalized, "-0x1p+0", APFloat::opOK, APFloat::fcNormal }, + { MSmallestNormalized, PInf, "-0x0p+0", APFloat::opOK, APFloat::fcZero }, + { MSmallestNormalized, MInf, "0x0p+0", APFloat::opOK, APFloat::fcZero }, + { MSmallestNormalized, PZero, "-inf", APFloat::opDivByZero, APFloat::fcInfinity }, + { MSmallestNormalized, MZero, "inf", APFloat::opDivByZero, APFloat::fcInfinity }, + { MSmallestNormalized, QNaN, "nan", APFloat::opOK, APFloat::fcNaN }, +#if 0 +// See Note 1. + { MSmallestNormalized, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN }, +#endif + { MSmallestNormalized, PNormalValue, "-0x1p-126", APFloat::opOK, APFloat::fcNormal }, + { MSmallestNormalized, MNormalValue, "0x1p-126", APFloat::opOK, APFloat::fcNormal }, + { MSmallestNormalized, PLargestValue, "-0x0p+0", UnderflowStatus, APFloat::fcZero }, + { MSmallestNormalized, MLargestValue, "0x0p+0", UnderflowStatus, APFloat::fcZero }, + { MSmallestNormalized, PSmallestValue, "-0x1p+23", APFloat::opOK, APFloat::fcNormal }, + { MSmallestNormalized, MSmallestValue, "0x1p+23", APFloat::opOK, APFloat::fcNormal }, + { MSmallestNormalized, PSmallestNormalized, "-0x1p+0", APFloat::opOK, APFloat::fcNormal }, + { MSmallestNormalized, MSmallestNormalized, "0x1p+0", APFloat::opOK, APFloat::fcNormal }, + }; + + for (size_t i = 0; i < NumTests; ++i) { + APFloat x(SpecialCaseTests[i].x); + APFloat y(SpecialCaseTests[i].y); + APFloat::opStatus status = x.divide(y, APFloat::rmNearestTiesToEven); + + APFloat result(APFloat::IEEEsingle, SpecialCaseTests[i].result); + + EXPECT_TRUE(result.bitwiseIsEqual(x)); + EXPECT_TRUE((int)status == SpecialCaseTests[i].status); + EXPECT_TRUE((int)x.getCategory() == SpecialCaseTests[i].category); + } } } |