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());
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) {
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) {
ASSERT_EQ("0.0101", convertToString(1.01E-2, 5, 2));
ASSERT_EQ("0.0101", convertToString(1.01E-2, 4, 2));
ASSERT_EQ("1.01E-2", convertToString(1.01E-2, 5, 1));
- ASSERT_EQ("0.7853981633974483", convertToString(0.78539816339744830961, 0, 3));
- ASSERT_EQ("4.940656458412465E-324", convertToString(4.9406564584124654e-324, 0, 3));
- ASSERT_EQ("873.1834", convertToString(873.1834, 0, 1));
- ASSERT_EQ("8.731834E+2", convertToString(873.1834, 0, 0));
+ ASSERT_EQ("0.78539816339744828", convertToString(0.78539816339744830961, 0, 3));
+ ASSERT_EQ("4.9406564584124654E-324", convertToString(4.9406564584124654e-324, 0, 3));
+ ASSERT_EQ("873.18340000000001", convertToString(873.1834, 0, 1));
+ ASSERT_EQ("8.7318340000000001E+2", convertToString(873.1834, 0, 0));
+ ASSERT_EQ("1.7976931348623157E+308", convertToString(1.7976931348623157E+308, 0, 0));
}
TEST(APFloatTest, toInteger) {
EXPECT_TRUE(inv.bitwiseIsEqual(APFloat(8.5070592e+37f)));
// Large float, inverse is a denormal.
- EXPECT_FALSE(APFloat(1.7014118e38f).getExactInverse(0));
+ EXPECT_FALSE(APFloat(1.7014118e38f).getExactInverse(nullptr));
// Zero
- EXPECT_FALSE(APFloat(0.0).getExactInverse(0));
+ EXPECT_FALSE(APFloat(0.0).getExactInverse(nullptr));
// Denormalized float
- EXPECT_FALSE(APFloat(1.40129846e-45f).getExactInverse(0));
+ EXPECT_FALSE(APFloat(1.40129846e-45f).getExactInverse(nullptr));
}
TEST(APFloatTest, roundToIntegral) {
// 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.
- // 2. It seems that add(-x, NaN) = -NaN but add(NaN, -x) = NaN. This is an
- // inconsistency that should be looked into. IEEE-754R specifies that the
- // interpretation of the sign of NaN is unspecified. We should always have NaN
- // be positive since that is one less thing for the compiler to deal with.
APFloat PInf = APFloat::getInf(APFloat::IEEEsingle, false);
APFloat MInf = APFloat::getInf(APFloat::IEEEsingle, true);
{ MInf, MInf, "-inf", APFloat::opOK, APFloat::fcInfinity },
{ MInf, PZero, "-inf", APFloat::opOK, APFloat::fcInfinity },
{ MInf, MZero, "-inf", APFloat::opOK, APFloat::fcInfinity },
- // See Note 2.
- { MInf, QNaN, "-nan", APFloat::opOK, APFloat::fcNaN },
+ { MInf, QNaN, "nan", APFloat::opOK, APFloat::fcNaN },
#if 0
// See Note 1.
{ MInf, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
{ MZero, MInf, "-inf", APFloat::opOK, APFloat::fcInfinity },
{ MZero, PZero, "0x0p+0", APFloat::opOK, APFloat::fcZero },
{ MZero, MZero, "-0x0p+0", APFloat::opOK, APFloat::fcZero },
- // See Note 2.
- { MZero, QNaN, "-nan", APFloat::opOK, APFloat::fcNaN },
+ { MZero, QNaN, "nan", APFloat::opOK, APFloat::fcNaN },
#if 0
// See Note 1.
{ MZero, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
{ MNormalValue, MInf, "-inf", APFloat::opOK, APFloat::fcInfinity },
{ MNormalValue, PZero, "-0x1p+0", APFloat::opOK, APFloat::fcNormal },
{ MNormalValue, MZero, "-0x1p+0", APFloat::opOK, APFloat::fcNormal },
- // See Note 2.
- { MNormalValue, QNaN, "-nan", APFloat::opOK, APFloat::fcNaN },
+ { MNormalValue, QNaN, "nan", APFloat::opOK, APFloat::fcNaN },
#if 0
// See Note 1.
{ MNormalValue, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
{ 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 },
- // See Note 2.
- { MLargestValue, QNaN, "-nan", APFloat::opOK, APFloat::fcNaN },
+ { MLargestValue, QNaN, "nan", APFloat::opOK, APFloat::fcNaN },
#if 0
// See Note 1.
{ MLargestValue, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
{ MSmallestValue, MInf, "-inf", APFloat::opOK, APFloat::fcInfinity },
{ MSmallestValue, PZero, "-0x1p-149", APFloat::opOK, APFloat::fcNormal },
{ MSmallestValue, MZero, "-0x1p-149", APFloat::opOK, APFloat::fcNormal },
- // See Note 2.
- { MSmallestValue, QNaN, "-nan", APFloat::opOK, APFloat::fcNaN },
+ { MSmallestValue, QNaN, "nan", APFloat::opOK, APFloat::fcNaN },
#if 0
// See Note 1.
{ MSmallestValue, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
{ MSmallestNormalized, MInf, "-inf", APFloat::opOK, APFloat::fcInfinity },
{ MSmallestNormalized, PZero, "-0x1p-126", APFloat::opOK, APFloat::fcNormal },
{ MSmallestNormalized, MZero, "-0x1p-126", APFloat::opOK, APFloat::fcNormal },
- // See Note 2.
- { MSmallestNormalized, QNaN, "-nan", APFloat::opOK, APFloat::fcNaN },
+ { MSmallestNormalized, QNaN, "nan", APFloat::opOK, APFloat::fcNaN },
#if 0
// See Note 1.
{ MSmallestNormalized, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
}
}
+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);
+ }
+}
+
}