// Return a random double from 0.01 to 1, inclusive
double IntlTestDateFormat::randDouble()
{
// Assume 8-bit (or larger) rand values. Also assume
// that the system rand() function is very poor, which it always is.
double d=0.0;
uint32_t i;
char* poke = (char*)&d;
do {
do {
for (i=0; i < sizeof(double); ++i)
{
poke[i] = (char)(rand() & 0xFF);
}
} while (uprv_isNaN(d) || uprv_isInfinite(d));
if (d < 0.0)
d = -d;
if (d > 0.0)
{
double e = uprv_floor(log10(d));
if (e < -2.0)
d *= uprv_pow10((int32_t)(-e-2));
else if (e > -1.0)
d /= uprv_pow10((int32_t)(e+1));
}
// While this is not a real normalized number make another one.
} while (uprv_isNaN(d) || uprv_isInfinite(d)
|| !((-DBL_MAX < d && d < DBL_MAX) || (d < -DBL_MIN && DBL_MIN < d)));
return d;
}
void
PUtilTest::maxMinTest(double a, double b, double exp, UBool max)
{
double result = 0.0;
if(max)
result = uprv_fmax(a, b);
else
result = uprv_fmin(a, b);
UBool nanResultOK = (uprv_isNaN(a) || uprv_isNaN(b));
if(uprv_isNaN(result) && ! nanResultOK) {
errln(UnicodeString("FAIL: got NaN as result without NaN as argument"));
if(max)
errln(UnicodeString(" max(") + a + ", " + b + ") is " + result + ", expected " + exp);
else
errln(UnicodeString(" min(") + a + ", " + b + ") is " + result + ", expected " + exp);
}
else if(result != exp && ! (uprv_isNaN(result) || uprv_isNaN(exp)))
if(max)
errln(UnicodeString("FAIL: max(") + a + ", " + b + ") is " + result + ", expected " + exp);
else
errln(UnicodeString("FAIL: min(") + a + ", " + b + ") is " + result + ", expected " + exp);
else {
if (verbose) {
if(max)
logln(UnicodeString("OK: max(") + a + ", " + b + ") is " + result);
else
logln(UnicodeString("OK: min(") + a + ", " + b + ") is " + result);
}
}
}
static UBool compareWithNAN(double x, double y)
{
if( uprv_isNaN(x) || uprv_isNaN(y) ) {
if(!uprv_isNaN(x) || !uprv_isNaN(y) ) {
return FALSE;
}
}
else if (y != x) { /* no NaN's involved */
return FALSE;
}
return TRUE;
}
void
PUtilTest::remainderTest(double x, double y, double exp)
{
double result = uprv_IEEEremainder(x,y);
if( uprv_isNaN(result) &&
! ( uprv_isNaN(x) || uprv_isNaN(y))) {
errln(UnicodeString("FAIL: got NaN as result without NaN as argument"));
errln(UnicodeString(" IEEEremainder(") + x + ", " + y + ") is " + result + ", expected " + exp);
}
else if(result != exp)
errln(UnicodeString("FAIL: IEEEremainder(") + x + ", " + y + ") is " + result + ", expected " + exp);
else
logln(UnicodeString("OK: IEEEremainder(") + x + ", " + y + ") is " + result);
}
int64_t util64_fromDouble(double d)
{
int64_t result = 0;
if (!uprv_isNaN(d))
{
double mant = uprv_maxMantissa();
if (d < -mant)
{
d = -mant;
}
else if (d > mant)
{
d = mant;
}
UBool neg = d < 0;
if (neg)
{
d = -d;
}
result = (int64_t)uprv_floor(d);
if (neg)
{
result = -result;
}
}
return result;
}
static void remainderTest(double x, double y, double exp)
{
double result = uprv_IEEEremainder(x,y);
if( uprv_isNaN(result) &&
! ( uprv_isNaN(x) || uprv_isNaN(y))) {
log_err("FAIL: got NaN as result without NaN as argument");
log_err(" IEEEremainder(%f, %f) is %f, expected %f\n", x, y, result, exp);
}
else if(!compareWithNAN(result, exp)) {
log_err("FAIL: IEEEremainder(%f, %f) is %f, expected %f\n", x, y, result, exp);
} else{
log_verbose("OK: IEEEremainder(%f, %f) is %f\n", x, y, result);
}
}
const NFRule*
NFRuleSet::findDoubleRule(double number) const
{
// if this is a fraction rule set, use findFractionRuleSetRule()
if (isFractionRuleSet()) {
return findFractionRuleSetRule(number);
}
if (uprv_isNaN(number)) {
const NFRule *rule = nonNumericalRules[NAN_RULE_INDEX];
if (!rule) {
rule = owner->getDefaultNaNRule();
}
return rule;
}
// if the number is negative, return the negative number rule
// (if there isn't a negative-number rule, we pretend it's a
// positive number)
if (number < 0) {
if (nonNumericalRules[NEGATIVE_RULE_INDEX]) {
return nonNumericalRules[NEGATIVE_RULE_INDEX];
} else {
number = -number;
}
}
if (uprv_isInfinite(number)) {
const NFRule *rule = nonNumericalRules[INFINITY_RULE_INDEX];
if (!rule) {
rule = owner->getDefaultInfinityRule();
}
return rule;
}
// if the number isn't an integer, we use one of the fraction rules...
if (number != uprv_floor(number)) {
// if the number is between 0 and 1, return the proper
// fraction rule
if (number < 1 && nonNumericalRules[PROPER_FRACTION_RULE_INDEX]) {
return nonNumericalRules[PROPER_FRACTION_RULE_INDEX];
}
// otherwise, return the improper fraction rule
else if (nonNumericalRules[IMPROPER_FRACTION_RULE_INDEX]) {
return nonNumericalRules[IMPROPER_FRACTION_RULE_INDEX];
}
}
// if there's a master rule, use it to format the number
if (nonNumericalRules[MASTER_RULE_INDEX]) {
return nonNumericalRules[MASTER_RULE_INDEX];
}
// and if we haven't yet returned a rule, use findNormalRule()
// to find the applicable rule
int64_t r = util64_fromDouble(number + 0.5);
return findNormalRule(r);
}
VisibleDigits &
FixedPrecision::initVisibleDigits(
double value,
VisibleDigits &digits,
UErrorCode &status) const {
if (U_FAILURE(status)) {
return digits;
}
digits.clear();
if (uprv_isNaN(value)) {
digits.setNaN();
return digits;
}
if (uprv_isPositiveInfinity(value)) {
digits.setInfinite();
return digits;
}
if (uprv_isNegativeInfinity(value)) {
digits.setInfinite();
digits.setNegative();
return digits;
}
if (!fRoundingIncrement.isZero()) {
// If we have round increment, use digit list.
DigitList digitList;
digitList.set(value);
return initVisibleDigits(digitList, digits, status);
}
// Try to find n such that value * 10^n is an integer
int32_t n = -1;
double scaled;
for (int32_t i = 0; i < UPRV_LENGTHOF(gPower10); ++i) {
scaled = value * gPower10[i];
if (scaled > MAX_INT64_IN_DOUBLE || scaled < -MAX_INT64_IN_DOUBLE) {
break;
}
if (scaled == floor(scaled)) {
n = i;
break;
}
}
// Try fast path
if (n >= 0 && initVisibleDigits(scaled, -n, digits, status)) {
digits.fAbsDoubleValue = fabs(value);
digits.fAbsDoubleValueSet = U_SUCCESS(status) && !digits.isOverMaxDigits();
// Adjust for negative 0 becuase when we cast to an int64,
// negative 0 becomes positive 0.
if (scaled == 0.0 && uprv_isNegative(scaled)) {
digits.setNegative();
}
return digits;
}
// Oops have to use digit list
DigitList digitList;
digitList.set(value);
return initVisibleDigits(digitList, digits, status);
}
U_CAPI double U_EXPORT2
uprv_fmin(double x, double y)
{
#if IEEE_754
int32_t lowBits;
/* first handle NaN*/
if(uprv_isNaN(x) || uprv_isNaN(y))
return uprv_getNaN();
/* check for -0 and 0*/
lowBits = *(uint32_t*) u_bottomNBytesOfDouble(&y, sizeof(uint32_t));
if(x == 0.0 && y == 0.0 && (lowBits & SIGN))
return y;
#endif
/* this should work for all flt point w/o NaN and Inf special cases */
return (x > y ? y : x);
}
void
PUtilTest::testIsNaN(void)
{
double pinf = uprv_getInfinity();
double ninf = -uprv_getInfinity();
double nan = uprv_getNaN();
double ten = 10.0;
if(uprv_isNaN(nan) == FALSE) {
errln("FAIL: isNaN() returned FALSE for NaN.");
}
if(uprv_isNaN(pinf) == TRUE) {
errln("FAIL: isNaN() returned TRUE for +Infinity.");
}
if(uprv_isNaN(ninf) == TRUE) {
errln("FAIL: isNaN() returned TRUE for -Infinity.");
}
if(uprv_isNaN(ten) == TRUE) {
errln("FAIL: isNaN() returned TRUE for 10.0.");
}
}
UnicodeString&
RuleBasedNumberFormat::format(double number,
UnicodeString& toAppendTo,
FieldPosition& /* pos */) const
{
// Special case for NaN; adapted from what DecimalFormat::_format( double number,...) does.
if (uprv_isNaN(number)) {
DecimalFormatSymbols* decFmtSyms = getDecimalFormatSymbols(); // RuleBasedNumberFormat internal
if (decFmtSyms) {
toAppendTo += decFmtSyms->getConstSymbol(DecimalFormatSymbols::kNaNSymbol);
}
} else if (defaultRuleSet) {
defaultRuleSet->format(number, toAppendTo, toAppendTo.length());
}
return toAppendTo;
}
void MessageFormatRegressionTest::Test4052223()
{
ParsePosition pos(0);
if (pos.getErrorIndex() != -1) {
errln("ParsePosition.getErrorIndex initialization failed.");
}
UErrorCode status = U_ZERO_ERROR;
MessageFormat *fmt = new MessageFormat("There are {0} apples growing on the {1} tree.", status);
failure(status, "new MessageFormat");
UnicodeString str("There is one apple growing on the peach tree.");
int32_t count = 0;
fmt->parse(str, pos, count);
logln(UnicodeString("unparsable string , should fail at ") + pos.getErrorIndex());
if (pos.getErrorIndex() == -1)
errln("Bug 4052223 failed : parsing string " + str);
pos.setErrorIndex(4);
if (pos.getErrorIndex() != 4)
errln(UnicodeString("setErrorIndex failed, got ") + pos.getErrorIndex() + " instead of 4");
ChoiceFormat *f = new ChoiceFormat(
"-1#are negative|0#are no or fraction|1#is one|1.0<is 1+|2#are two|2<are more than 2.", status);
failure(status, "new ChoiceFormat");
pos.setIndex(0);
pos.setErrorIndex(-1);
Formattable obj;
f->parse("are negative", obj, pos);
if (pos.getErrorIndex() != -1 && obj.getDouble() == -1.0)
errln(UnicodeString("Parse with \"are negative\" failed, at ") + pos.getErrorIndex());
pos.setIndex(0);
pos.setErrorIndex(-1);
f->parse("are no or fraction ", obj, pos);
if (pos.getErrorIndex() != -1 && obj.getDouble() == 0.0)
errln(UnicodeString("Parse with \"are no or fraction\" failed, at ") + pos.getErrorIndex());
pos.setIndex(0);
pos.setErrorIndex(-1);
f->parse("go postal", obj, pos);
if (pos.getErrorIndex() == -1 && ! uprv_isNaN(obj.getDouble()))
errln(UnicodeString("Parse with \"go postal\" failed, at ") + pos.getErrorIndex());
delete fmt;
delete f;
}
double IntlTestNumberFormat::randDouble()
{
// Assume 8-bit (or larger) rand values. Also assume
// that the system rand() function is very poor, which it always is.
// Call srand(currentTime) in intltest to make it truly random.
double d;
uint32_t i;
char* poke = (char*)&d;
do {
for (i=0; i < sizeof(double); ++i)
{
poke[i] = (char)(rand() & 0xFF);
}
} while (uprv_isNaN(d) || uprv_isInfinite(d)
|| !((-DBL_MAX < d && d < DBL_MAX) || (d < -DBL_MIN && DBL_MIN < d)));
return d;
}
/**
* Truncates the given double.
* trunc(3.3) = 3.0, trunc (-3.3) = -3.0
* This is different than calling floor() or ceil():
* floor(3.3) = 3, floor(-3.3) = -4
* ceil(3.3) = 4, ceil(-3.3) = -3
*/
U_CAPI double U_EXPORT2
uprv_trunc(double d)
{
#if IEEE_754
int32_t lowBits;
/* handle error cases*/
if(uprv_isNaN(d))
return uprv_getNaN();
if(uprv_isInfinite(d))
return uprv_getInfinity();
lowBits = *(uint32_t*) u_bottomNBytesOfDouble(&d, sizeof(uint32_t));
if( (d == 0.0 && (lowBits & SIGN)) || d < 0)
return ceil(d);
else
return floor(d);
#else
return d >= 0 ? floor(d) : ceil(d);
#endif
}