Decimal128 DecimalUtil::multiplyByPowerOf10(Decimal128 value,
Decimal128 exponent)
{
Decimal128 result = value;
decQuadScaleB(result.data(), value.data(), exponent.data(), getContext());
return result;
}
Decimal128 DecimalUtil::fabs(Decimal128 value)
{
#if BDLDFP_DECIMALPLATFORM_C99_TR
return fabsd128(value.value());
#elif BDLDFP_DECIMALPLATFORM_DECNUMBER
Decimal128 rv;
decQuadAbs(rv.data(), value.data(), getContext());
return rv;
#endif
}
Decimal128 DecimalUtil::fma(Decimal128 x, Decimal128 y, Decimal128 z)
{
#if BDLDFP_DECIMALPLATFORM_C99_TR
return fmad128(x.value(), y.value(), z.value());
#elif BDLDFP_DECIMALPLATFORM_DECNUMBER
Decimal128 rv;
decQuadFMA(rv.data(), x.data(), y.data(), z.data(), getContext());
return rv;
#endif
}
Decimal128 DecimalUtil::multiplyByPowerOf10(Decimal128 value, int exponent)
{
BSLS_ASSERT(-1999999997 <= exponent);
BSLS_ASSERT( exponent <= 99999999);
Decimal128 result = value;
DecimalImplUtil::ValueType128 scale =
DecimalImplUtil::makeDecimalRaw128(exponent, 0);
decQuadScaleB(result.data(), value.data(), &scale, getContext());
return result;
}
Decimal128 DecimalUtil::round(Decimal128 x)
{
#if BDLDFP_DECIMALPLATFORM_C99_TR
return roundd128(x.value());
#elif BDLDFP_DECIMALPLATFORM_DECNUMBER
Decimal128 rv;
decQuadToIntegralValue(rv.data(),
x.data(),
getContext(),
DEC_ROUND_HALF_UP);
return rv;
#endif
}
Decimal128 DecimalUtil::ceil(Decimal128 x)
{
#if BDLDFP_DECIMALPLATFORM_C99_TR
return ceild128(x.value());
#elif BDLDFP_DECIMALPLATFORM_DECNUMBER
Decimal128 rv;
decQuadToIntegralValue(rv.data(),
x.data(),
getContext(),
DEC_ROUND_CEILING);
return rv;
#endif
}
int DecimalUtil::quantum(Decimal128 x)
{
BSLS_ASSERT(!isInf(x));
BSLS_ASSERT(!isNan(x));
return decQuadGetExponent(x.data());
}
int DecimalUtil::classify(Decimal128 x)
{
#if BDLDFP_DECIMALPLATFORM_C99_TR
return fpclassify(x.value());
#elif BDLDFP_DECIMALPLATFORM_DECNUMBER
enum decClass cl = decQuadClass(x.data());
return deClass2FP_(cl);
#endif
}
bool DecimalUtil::sameQuantum(Decimal128 x, Decimal128 y)
{
return decQuadSameQuantum(x.data(), y.data()) == 1;
}
Decimal128 DecimalUtil::quantize(Decimal128 x, Decimal128 y)
{
Decimal128 rv = x;
decQuadQuantize(rv.data(), x.data(), y.data(), getContext());
return rv;
}