// Constructors.
APFloat(const fltSemantics &, const char *);
APFloat(const fltSemantics &, integerPart);
- APFloat(const fltSemantics &, fltCategory, bool negative);
+ APFloat(const fltSemantics &, fltCategory, bool negative, unsigned type=0);
explicit APFloat(double d);
explicit APFloat(float f);
explicit APFloat(const APInt &, bool isIEEE = false);
static APFloat getInf(const fltSemantics &Sem, bool Negative = false) {
return APFloat(Sem, fcInfinity, Negative);
}
- static APFloat getNaN(const fltSemantics &Sem, bool Negative = false) {
- return APFloat(Sem, fcNaN, Negative);
+ static APFloat getNaN(const fltSemantics &Sem, bool Negative = false,
+ long unsigned type=0) {
+ return APFloat(Sem, fcNaN, Negative, type);
}
/// Profile - Used to insert APFloat objects, or objects that contain
opStatus modSpecials(const APFloat &);
/* Miscellany. */
- void makeNaN(void);
+ void makeNaN(unsigned = 0);
opStatus normalize(roundingMode, lostFraction);
opStatus addOrSubtract(const APFloat &, roundingMode, bool subtract);
cmpResult compareAbsoluteValue(const APFloat &) const;
/* Make this number a NaN, with an arbitrary but deterministic value
for the significand. If double or longer, this is a signalling NaN,
- which may not be ideal. */
+ which may not be ideal. If float, this is QNaN(0). */
void
-APFloat::makeNaN(void)
+APFloat::makeNaN(unsigned type)
{
category = fcNaN;
- APInt::tcSet(significandParts(), ~0U, partCount());
+ // FIXME: Add double and long double support for QNaN(0).
+ if (semantics->precision == 24 && semantics->maxExponent == 127) {
+ type |= 0x7fc00000U;
+ type &= ~0x80000000U;
+ } else
+ type = ~0U;
+ APInt::tcSet(significandParts(), type, partCount());
}
APFloat &
}
APFloat::APFloat(const fltSemantics &ourSemantics,
- fltCategory ourCategory, bool negative)
+ fltCategory ourCategory, bool negative, unsigned type)
{
assertArithmeticOK(ourSemantics);
initialize(&ourSemantics);
category = ourCategory;
sign = negative;
- if(category == fcNormal)
+ if (category == fcNormal)
category = fcZero;
else if (ourCategory == fcNaN)
- makeNaN();
+ makeNaN(type);
}
APFloat::APFloat(const fltSemantics &ourSemantics, const char *text)