42039/12655 < L < 28738/8651 [ numerator <= 65536 ]
*/
- if (decDigitValue(*D.firstSigDigit) >= 10U) {
+ // Test if we have a zero number allowing for strings with no null terminators
+ // and zero decimals with non-zero exponents.
+ //
+ // We computed firstSigDigit by ignoring all zeros and dots. Thus if
+ // D->firstSigDigit equals str.end(), every digit must be a zero and there can
+ // be at most one dot. On the other hand, if we have a zero with a non-zero
+ // exponent, then we know that D.firstSigDigit will be non-numeric.
+ if (decDigitValue(*D.firstSigDigit) >= 10U || D.firstSigDigit == str.end()) {
category = fcZero;
fs = opOK;
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());