partCount());
}
+/* Make this number a NaN, with an arbitrary but deterministic value
+ for the significand. */
+void
+APFloat::makeNaN(void)
+{
+ category = fcNaN;
+ APInt::tcSet(significandParts(), ~0U, partCount());
+}
+
APFloat &
APFloat::operator=(const APFloat &rhs)
{
sign = negative;
if(category == fcNormal)
category = fcZero;
+ else if (ourCategory == fcNaN)
+ makeNaN();
}
APFloat::APFloat(const fltSemantics &ourSemantics, const char *text)
/* Differently signed infinities can only be validly
subtracted. */
if(sign ^ rhs.sign != subtract) {
- category = fcNaN;
- // Arbitrary but deterministic value for significand
- APInt::tcSet(significandParts(), ~0U, partCount());
+ makeNaN();
return opInvalidOp;
}
case convolve(fcZero, fcInfinity):
case convolve(fcInfinity, fcZero):
- category = fcNaN;
- // Arbitrary but deterministic value for significand
- APInt::tcSet(significandParts(), ~0U, partCount());
+ makeNaN();
return opInvalidOp;
case convolve(fcNormal, fcNormal):
case convolve(fcInfinity, fcInfinity):
case convolve(fcZero, fcZero):
- category = fcNaN;
- // Arbitrary but deterministic value for significand
- APInt::tcSet(significandParts(), ~0U, partCount());
+ makeNaN();
return opInvalidOp;
case convolve(fcNormal, fcNormal):
if(bits > 0) {
lost_fraction = tmp.shiftSignificandRight(bits);
} else {
- if (-bits >= semantics->precision) {
+ if ((unsigned) -bits >= semantics->precision) {
// Unrepresentably large.
if (!sign && isSigned)
APInt::tcSetLeastSignificantBits(parts, partsCount, width-1);