[apple/icu.git] / icuSources / test / intltest / nmfmtrt.cpp

// © 2016 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
/***********************************************************************
 * COPYRIGHT: 
 * Copyright (c) 1997-2015, International Business Machines Corporation
 * and others. All Rights Reserved.
 ***********************************************************************/

#include "unicode/utypes.h"

#if !UCONFIG_NO_FORMATTING

#include "nmfmtrt.h"

#include "unicode/dcfmtsym.h"
#include "unicode/decimfmt.h"
#include "unicode/locid.h"
#include "putilimp.h"

#include <float.h>
#include <stdio.h>    // for sprintf
#include <stdlib.h>
 
// *****************************************************************************
// class NumberFormatRoundTripTest
// *****************************************************************************

UBool NumberFormatRoundTripTest::verbose                  = FALSE;
UBool NumberFormatRoundTripTest::STRING_COMPARE           = TRUE;
UBool NumberFormatRoundTripTest::EXACT_NUMERIC_COMPARE    = FALSE;
UBool NumberFormatRoundTripTest::DEBUG_VAR                = FALSE;
double NumberFormatRoundTripTest::MAX_ERROR               = 1e-14;
double NumberFormatRoundTripTest::max_numeric_error       = 0.0;
double NumberFormatRoundTripTest::min_numeric_error       = 1.0;

#define CASE(id,test) case id: name = #test; if (exec) { logln(#test "---"); logln((UnicodeString)""); test(); } break;

void NumberFormatRoundTripTest::runIndexedTest( int32_t index, UBool exec, const char* &name, char* /*par*/ )
{
    // if (exec) logln((UnicodeString)"TestSuite NumberFormatRoundTripTest");
    switch (index) {
        CASE(0, start)
        default: name = ""; break;
    }
}

UBool 
NumberFormatRoundTripTest::failure(UErrorCode status, const char* msg, UBool possibleDataError)
{
    if(U_FAILURE(status)) {
        if (possibleDataError) {
            dataerrln(UnicodeString("FAIL: ") + msg + " failed, error " + u_errorName(status));
        } else {
            errln(UnicodeString("FAIL: ") + msg + " failed, error " + u_errorName(status));
        }
        return TRUE;
    }

    return FALSE;
}

uint32_t
NumberFormatRoundTripTest::randLong()
{
    // Assume 8-bit (or larger) rand values.  Also assume
    // that the system rand() function is very poor, which it always is.
    uint32_t d;
    uint32_t i;
    char* poke = (char*)&d;
    for (i=0; i < sizeof(uint32_t); ++i)
    {
        poke[i] = (char)(rand() & 0xFF);
    }
    return d;
}

/**
 * Return a random value from -range..+range.
 */
double 
NumberFormatRoundTripTest::randomDouble(double range)
{
    double a = randFraction();
    return (2.0 * range * a) - range;
}

void 
NumberFormatRoundTripTest::start()
{
// test(NumberFormat.getInstance(new Locale("sr", "", "")));

    UErrorCode status = U_ZERO_ERROR;

    NumberFormat *fmt = NULL;

    logln("Default Locale");

    fmt = NumberFormat::createInstance(status);
    if (!failure(status, "NumberFormat::createInstance", TRUE)){
        test(fmt);
    }
    delete fmt;

    fmt = NumberFormat::createCurrencyInstance(status);
    if (!failure(status, "NumberFormat::createCurrencyInstance", TRUE)){
        test(fmt);
    }
    delete fmt;

    fmt = NumberFormat::createPercentInstance(status);
    if (!failure(status, "NumberFormat::createPercentInstance", TRUE)){
        test(fmt);
    }
    delete fmt;


    int32_t locCount = 0;
    const Locale *loc = NumberFormat::getAvailableLocales(locCount);
    if(quick) {
        if(locCount > 5)
            locCount = 5;
        logln("Quick mode: only testing first 5 Locales");
    }
    for(int i = 0; i < locCount; ++i) {
        UnicodeString name;
        logln(loc[i].getDisplayName(name));

        fmt = NumberFormat::createInstance(loc[i], status);
        failure(status, "NumberFormat::createInstance");
        test(fmt);
        delete fmt;
    
        fmt = NumberFormat::createCurrencyInstance(loc[i], status);
        failure(status, "NumberFormat::createCurrencyInstance");
        test(fmt);
        delete fmt;
    
        fmt = NumberFormat::createPercentInstance(loc[i], status);
        failure(status, "NumberFormat::createPercentInstance");
        test(fmt);
        delete fmt;
    }

    logln(UnicodeString("Numeric error ") + min_numeric_error + " to " + max_numeric_error);
}


void 
NumberFormatRoundTripTest::test(NumberFormat *fmt)
{
#if IEEE_754 && U_PLATFORM != U_PF_OS400
    test(fmt, uprv_getNaN());
    test(fmt, uprv_getInfinity());
    test(fmt, -uprv_getInfinity());
#endif

    test(fmt, (int32_t)500);
    test(fmt, (int32_t)0);
    test(fmt, (int32_t)-0);
    test(fmt, 0.0);
    double negZero = 0.0; negZero /= -1.0;
    test(fmt, negZero);
    test(fmt, 9223372036854775808.0);
    test(fmt, -9223372036854775809.0);

    for(int i = 0; i < 10; ++i) {
        test(fmt, randomDouble(1));
        test(fmt, randomDouble(10000));
        test(fmt, uprv_floor((randomDouble(10000))));
        test(fmt, randomDouble(1e50));
        test(fmt, randomDouble(1e-50));
#if !(U_PF_OS390 <= U_PLATFORM && U_PLATFORM <= U_PF_OS400)
        test(fmt, randomDouble(1e100));
#elif IEEE_754
        test(fmt, randomDouble(1e75));
#endif /* OS390 and OS400 */
        // {sfb} When formatting with a percent instance, numbers very close to
        // DBL_MAX will fail the round trip.  This is because:
        // 1) Format the double into a string --> INF% (since 100 * double > DBL_MAX)
        // 2) Parse the string into a double --> INF
        // 3) Re-format the double --> INF%
        // 4) The strings are equal, so that works.
        // 5) Calculate the proportional error --> INF, so the test will fail
        // I'll get around this by dividing by the multiplier to make sure
        // the double will stay in range.
        //if(fmt->getMultipler() == 1)
        DecimalFormat *df = dynamic_cast<DecimalFormat *>(fmt);
        if(df != NULL)
        {
#if !(U_PF_OS390 <= U_PLATFORM && U_PLATFORM <= U_PF_OS400)
            /* DBL_MAX/2 is here because randomDouble does a *2 in the math */
            test(fmt, randomDouble(DBL_MAX/2.0) / df->getMultiplier());
#elif IEEE_754
            test(fmt, randomDouble(1e75) / df->getMultiplier());
#else
            test(fmt, randomDouble(1e65) / df->getMultiplier());
#endif
        }

#if (defined(_MSC_VER) && _MSC_VER < 1400) || defined(__alpha__) || defined(U_OSF)
        // These machines and compilers don't fully support denormalized doubles,
        test(fmt, randomDouble(1e-292));
        test(fmt, randomDouble(1e-100));
#elif U_PF_OS390 <= U_PLATFORM && U_PLATFORM <= U_PF_OS400
        // i5/OS (OS/400) throws exceptions on denormalized numbers
#   if IEEE_754
        test(fmt, randomDouble(1e-78));
        test(fmt, randomDouble(1e-78));
        // #else we're using something like the old z/OS floating point.
#   endif
#else
        // This is a normal machine that can support IEEE754 denormalized doubles without throwing an error.
        test(fmt, randomDouble(DBL_MIN)); /* Usually 2.2250738585072014e-308 */
        test(fmt, randomDouble(1e-100));
#endif
    }
}

void 
NumberFormatRoundTripTest::test(NumberFormat *fmt, double value)
{
    test(fmt, Formattable(value));
}

void 
NumberFormatRoundTripTest::test(NumberFormat *fmt, int32_t value)
{
    test(fmt, Formattable(value));
}

void 
NumberFormatRoundTripTest::test(NumberFormat *fmt, const Formattable& value)
{
    fmt->setMaximumFractionDigits(999);
    DecimalFormat *df = dynamic_cast<DecimalFormat *>(fmt);
    if(df != NULL) {
        df->setRoundingIncrement(0.0);
    }
    UErrorCode status = U_ZERO_ERROR;
    UnicodeString s, s2, temp;
    if(isDouble(value))
        s = fmt->format(value.getDouble(), s);
    else
        s = fmt->format(value.getLong(), s);

    Formattable n;
    UBool show = verbose;
    if(DEBUG_VAR)
        logln(/*value.getString(temp) +*/ " F> " + escape(s));

    fmt->parse(s, n, status);
    failure(status, "fmt->parse");
    if(DEBUG_VAR) 
        logln(escape(s) + " P> " /*+ n.getString(temp)*/);

    if(isDouble(n))
        s2 = fmt->format(n.getDouble(), s2);
    else
        s2 = fmt->format(n.getLong(), s2);
    
    if(DEBUG_VAR) 
        logln(/*n.getString(temp) +*/ " F> " + escape(s2));

    if(STRING_COMPARE) {
        if (s != s2) {
            errln("*** STRING ERROR \"" + escape(s) + "\" != \"" + escape(s2) + "\"");
            show = TRUE;
        }
    }

    if(EXACT_NUMERIC_COMPARE) {
        if(value != n) {
            errln("*** NUMERIC ERROR");
            show = TRUE;
        }
    }
    else {
        // Compute proportional error
        double error = proportionalError(value, n);

        if(error > MAX_ERROR) {
            errln(UnicodeString("*** NUMERIC ERROR ") + error);
            show = TRUE;
        }

        if (error > max_numeric_error) 
            max_numeric_error = error;
        if (error < min_numeric_error) 
            min_numeric_error = error;
    }

    if (show) {
        errln(/*value.getString(temp) +*/ typeOf(value, temp) + " F> " +
            escape(s) + " P> " + (n.getType() == Formattable::kDouble ? n.getDouble() : (double)n.getLong())
            /*n.getString(temp) */ + typeOf(n, temp) + " F> " +
            escape(s2));
    }
}

double 
NumberFormatRoundTripTest::proportionalError(const Formattable& a, const Formattable& b)
{
    double aa,bb;
    
    if(isDouble(a))
        aa = a.getDouble();
    else
        aa = a.getLong();

    if(isDouble(b))
        bb = b.getDouble();
    else
        bb = b.getLong();

    double error = aa - bb;
    if(aa != 0 && bb != 0) 
        error /= aa;
    
    return uprv_fabs(error);
}

UnicodeString& 
NumberFormatRoundTripTest::typeOf(const Formattable& n, UnicodeString& result)
{
    if(n.getType() == Formattable::kLong) {
        result = UnicodeString(" Long");
    }
    else if(n.getType() == Formattable::kDouble) {
        result = UnicodeString(" Double");
    }
    else if(n.getType() == Formattable::kString) {
        result = UnicodeString(" UnicodeString");
        UnicodeString temp;
    }

    return result;
}


UnicodeString& 
NumberFormatRoundTripTest::escape(UnicodeString& s)
{
    UnicodeString copy(s);
    s.remove();
    for(int i = 0; i < copy.length(); ++i) {
        UChar c = copy[i];
        if(c < 0x00FF) 
            s += c;
        else {
            s += "+U";
            char temp[16];
            sprintf(temp, "%4X", c);        // might not work
            s += temp;
        }
    }
    return s;
}

#endif /* #if !UCONFIG_NO_FORMATTING */
Commit	Line	Data
f3c0d7a5 A	1	// © 2016 and later: Unicode, Inc. and others.
f3c0d7a5 A	2	// License & terms of use: http://www.unicode.org/copyright.html
374ca955	3	/***********************************************************************
b75a7d8f	4	* COPYRIGHT:
2ca993e8	5	* Copyright (c) 1997-2015, International Business Machines Corporation
374ca955 A	6	* and others. All Rights Reserved.
374ca955 A	7	***********************************************************************/
b75a7d8f A	8
	9	#include "unicode/utypes.h"
	10
	11	#if !UCONFIG_NO_FORMATTING
	12
	13	#include "nmfmtrt.h"
	14
	15	#include "unicode/dcfmtsym.h"
	16	#include "unicode/decimfmt.h"
	17	#include "unicode/locid.h"
374ca955	18	#include "putilimp.h"
b75a7d8f A	19
	20	#include <float.h>
	21	#include <stdio.h> // for sprintf
374ca955	22	#include <stdlib.h>
b75a7d8f A	23
	24	// *****************************************************************************
	25	// class NumberFormatRoundTripTest
	26	// *****************************************************************************
	27
	28	UBool NumberFormatRoundTripTest::verbose = FALSE;
	29	UBool NumberFormatRoundTripTest::STRING_COMPARE = TRUE;
	30	UBool NumberFormatRoundTripTest::EXACT_NUMERIC_COMPARE = FALSE;
2ca993e8	31	UBool NumberFormatRoundTripTest::DEBUG_VAR = FALSE;
b75a7d8f A	32	double NumberFormatRoundTripTest::MAX_ERROR = 1e-14;
	33	double NumberFormatRoundTripTest::max_numeric_error = 0.0;
	34	double NumberFormatRoundTripTest::min_numeric_error = 1.0;
	35
	36	#define CASE(id,test) case id: name = #test; if (exec) { logln(#test "---"); logln((UnicodeString)""); test(); } break;
	37
	38	void NumberFormatRoundTripTest::runIndexedTest( int32_t index, UBool exec, const char* &name, char* /par/ )
	39	{
	40	// if (exec) logln((UnicodeString)"TestSuite NumberFormatRoundTripTest");
	41	switch (index) {
	42	CASE(0, start)
	43	default: name = ""; break;
	44	}
	45	}
	46
	47	UBool
729e4ab9	48	NumberFormatRoundTripTest::failure(UErrorCode status, const char* msg, UBool possibleDataError)
b75a7d8f A	49	{
b75a7d8f A	50	if(U_FAILURE(status)) {
729e4ab9 A	51	if (possibleDataError) {
	52	dataerrln(UnicodeString("FAIL: ") + msg + " failed, error " + u_errorName(status));
	53	} else {
	54	errln(UnicodeString("FAIL: ") + msg + " failed, error " + u_errorName(status));
	55	}
b75a7d8f A	56	return TRUE;
	57	}
	58
	59	return FALSE;
	60	}
	61
374ca955 A	62	uint32_t
	63	NumberFormatRoundTripTest::randLong()
	64	{
	65	// Assume 8-bit (or larger) rand values. Also assume
	66	// that the system rand() function is very poor, which it always is.
	67	uint32_t d;
	68	uint32_t i;
	69	char* poke = (char*)&d;
	70	for (i=0; i < sizeof(uint32_t); ++i)
	71	{
	72	poke[i] = (char)(rand() & 0xFF);
	73	}
	74	return d;
	75	}
	76
	77	/**
	78	* Return a random value from -range..+range.
	79	*/
	80	double
	81	NumberFormatRoundTripTest::randomDouble(double range)
	82	{
	83	double a = randFraction();
	84	return (2.0 * range * a) - range;
	85	}
	86
b75a7d8f A	87	void
	88	NumberFormatRoundTripTest::start()
	89	{
	90	// test(NumberFormat.getInstance(new Locale("sr", "", "")));
	91
	92	UErrorCode status = U_ZERO_ERROR;
	93
	94	NumberFormat *fmt = NULL;
	95
	96	logln("Default Locale");
	97
	98	fmt = NumberFormat::createInstance(status);
729e4ab9	99	if (!failure(status, "NumberFormat::createInstance", TRUE)){
73c04bcf A	100	test(fmt);
73c04bcf A	101	}
b75a7d8f A	102	delete fmt;
	103
	104	fmt = NumberFormat::createCurrencyInstance(status);
729e4ab9	105	if (!failure(status, "NumberFormat::createCurrencyInstance", TRUE)){
73c04bcf A	106	test(fmt);
73c04bcf A	107	}
b75a7d8f A	108	delete fmt;
	109
	110	fmt = NumberFormat::createPercentInstance(status);
729e4ab9	111	if (!failure(status, "NumberFormat::createPercentInstance", TRUE)){
73c04bcf A	112	test(fmt);
73c04bcf A	113	}
b75a7d8f A	114	delete fmt;
	115
	116
	117	int32_t locCount = 0;
	118	const Locale *loc = NumberFormat::getAvailableLocales(locCount);
	119	if(quick) {
	120	if(locCount > 5)
	121	locCount = 5;
	122	logln("Quick mode: only testing first 5 Locales");
	123	}
	124	for(int i = 0; i < locCount; ++i) {
	125	UnicodeString name;
	126	logln(loc[i].getDisplayName(name));
	127
	128	fmt = NumberFormat::createInstance(loc[i], status);
	129	failure(status, "NumberFormat::createInstance");
	130	test(fmt);
	131	delete fmt;
	132
	133	fmt = NumberFormat::createCurrencyInstance(loc[i], status);
	134	failure(status, "NumberFormat::createCurrencyInstance");
	135	test(fmt);
	136	delete fmt;
	137
	138	fmt = NumberFormat::createPercentInstance(loc[i], status);
	139	failure(status, "NumberFormat::createPercentInstance");
	140	test(fmt);
	141	delete fmt;
	142	}
	143
	144	logln(UnicodeString("Numeric error ") + min_numeric_error + " to " + max_numeric_error);
	145	}
	146
	147
	148	void
	149	NumberFormatRoundTripTest::test(NumberFormat *fmt)
	150	{
4388f060	151	#if IEEE_754 && U_PLATFORM != U_PF_OS400
b75a7d8f A	152	test(fmt, uprv_getNaN());
	153	test(fmt, uprv_getInfinity());
	154	test(fmt, -uprv_getInfinity());
	155	#endif
	156
	157	test(fmt, (int32_t)500);
	158	test(fmt, (int32_t)0);
	159	test(fmt, (int32_t)-0);
	160	test(fmt, 0.0);
	161	double negZero = 0.0; negZero /= -1.0;
	162	test(fmt, negZero);
	163	test(fmt, 9223372036854775808.0);
	164	test(fmt, -9223372036854775809.0);
	165
	166	for(int i = 0; i < 10; ++i) {
	167	test(fmt, randomDouble(1));
	168	test(fmt, randomDouble(10000));
	169	test(fmt, uprv_floor((randomDouble(10000))));
	170	test(fmt, randomDouble(1e50));
	171	test(fmt, randomDouble(1e-50));
4388f060	172	#if !(U_PF_OS390 <= U_PLATFORM && U_PLATFORM <= U_PF_OS400)
b75a7d8f A	173	test(fmt, randomDouble(1e100));
b75a7d8f A	174	#elif IEEE_754
4388f060	175	test(fmt, randomDouble(1e75));
b75a7d8f A	176	#endif /* OS390 and OS400 */
	177	// {sfb} When formatting with a percent instance, numbers very close to
	178	// DBL_MAX will fail the round trip. This is because:
	179	// 1) Format the double into a string --> INF% (since 100 * double > DBL_MAX)
	180	// 2) Parse the string into a double --> INF
	181	// 3) Re-format the double --> INF%
	182	// 4) The strings are equal, so that works.
	183	// 5) Calculate the proportional error --> INF, so the test will fail
	184	// I'll get around this by dividing by the multiplier to make sure
	185	// the double will stay in range.
	186	//if(fmt->getMultipler() == 1)
729e4ab9 A	187	DecimalFormat df = dynamic_cast<DecimalFormat >(fmt);
729e4ab9 A	188	if(df != NULL)
b75a7d8f	189	{
4388f060	190	#if !(U_PF_OS390 <= U_PLATFORM && U_PLATFORM <= U_PF_OS400)
b75a7d8f	191	/* DBL_MAX/2 is here because randomDouble does a 2 in the math /
729e4ab9	192	test(fmt, randomDouble(DBL_MAX/2.0) / df->getMultiplier());
b75a7d8f	193	#elif IEEE_754
4388f060	194	test(fmt, randomDouble(1e75) / df->getMultiplier());
b75a7d8f	195	#else
4388f060	196	test(fmt, randomDouble(1e65) / df->getMultiplier());
b75a7d8f A	197	#endif
	198	}
	199
46f4442e A	200	#if (defined(_MSC_VER) && _MSC_VER < 1400) \|\| defined(__alpha__) \|\| defined(U_OSF)
46f4442e A	201	// These machines and compilers don't fully support denormalized doubles,
b75a7d8f	202	test(fmt, randomDouble(1e-292));
46f4442e	203	test(fmt, randomDouble(1e-100));
4388f060 A	204	#elif U_PF_OS390 <= U_PLATFORM && U_PLATFORM <= U_PF_OS400
4388f060 A	205	// i5/OS (OS/400) throws exceptions on denormalized numbers
b75a7d8f	206	# if IEEE_754
46f4442e A	207	test(fmt, randomDouble(1e-78));
	208	test(fmt, randomDouble(1e-78));
	209	// #else we're using something like the old z/OS floating point.
b75a7d8f A	210	# endif
b75a7d8f A	211	#else
46f4442e A	212	// This is a normal machine that can support IEEE754 denormalized doubles without throwing an error.
46f4442e A	213	test(fmt, randomDouble(DBL_MIN)); /* Usually 2.2250738585072014e-308 */
b75a7d8f	214	test(fmt, randomDouble(1e-100));
46f4442e	215	#endif
b75a7d8f A	216	}
	217	}
	218
b75a7d8f A	219	void
	220	NumberFormatRoundTripTest::test(NumberFormat *fmt, double value)
	221	{
	222	test(fmt, Formattable(value));
	223	}
	224
	225	void
	226	NumberFormatRoundTripTest::test(NumberFormat *fmt, int32_t value)
	227	{
	228	test(fmt, Formattable(value));
	229	}
	230
	231	void
	232	NumberFormatRoundTripTest::test(NumberFormat *fmt, const Formattable& value)
	233	{
	234	fmt->setMaximumFractionDigits(999);
729e4ab9 A	235	DecimalFormat df = dynamic_cast<DecimalFormat >(fmt);
	236	if(df != NULL) {
	237	df->setRoundingIncrement(0.0);
73c04bcf	238	}
b75a7d8f A	239	UErrorCode status = U_ZERO_ERROR;
	240	UnicodeString s, s2, temp;
	241	if(isDouble(value))
	242	s = fmt->format(value.getDouble(), s);
	243	else
	244	s = fmt->format(value.getLong(), s);
	245
	246	Formattable n;
	247	UBool show = verbose;
2ca993e8	248	if(DEBUG_VAR)
b75a7d8f A	249	logln(/value.getString(temp) +/ " F> " + escape(s));
	250
	251	fmt->parse(s, n, status);
	252	failure(status, "fmt->parse");
2ca993e8	253	if(DEBUG_VAR)
b75a7d8f A	254	logln(escape(s) + " P> " /+ n.getString(temp)/);
	255
	256	if(isDouble(n))
	257	s2 = fmt->format(n.getDouble(), s2);
	258	else
	259	s2 = fmt->format(n.getLong(), s2);
	260
2ca993e8	261	if(DEBUG_VAR)
b75a7d8f A	262	logln(/n.getString(temp) +/ " F> " + escape(s2));
	263
	264	if(STRING_COMPARE) {
	265	if (s != s2) {
	266	errln("*** STRING ERROR \"" + escape(s) + "\" != \"" + escape(s2) + "\"");
	267	show = TRUE;
	268	}
	269	}
	270
	271	if(EXACT_NUMERIC_COMPARE) {
	272	if(value != n) {
	273	errln("*** NUMERIC ERROR");
	274	show = TRUE;
	275	}
	276	}
	277	else {
	278	// Compute proportional error
	279	double error = proportionalError(value, n);
	280
	281	if(error > MAX_ERROR) {
	282	errln(UnicodeString("*** NUMERIC ERROR ") + error);
	283	show = TRUE;
	284	}
	285
	286	if (error > max_numeric_error)
	287	max_numeric_error = error;
	288	if (error < min_numeric_error)
	289	min_numeric_error = error;
	290	}
	291
	292	if (show) {
	293	errln(/value.getString(temp) +/ typeOf(value, temp) + " F> " +
46f4442e A	294	escape(s) + " P> " + (n.getType() == Formattable::kDouble ? n.getDouble() : (double)n.getLong())
46f4442e A	295	/n.getString(temp) / + typeOf(n, temp) + " F> " +
b75a7d8f A	296	escape(s2));
	297	}
	298	}
	299
	300	double
	301	NumberFormatRoundTripTest::proportionalError(const Formattable& a, const Formattable& b)
	302	{
	303	double aa,bb;
	304
	305	if(isDouble(a))
	306	aa = a.getDouble();
	307	else
	308	aa = a.getLong();
	309
	310	if(isDouble(b))
	311	bb = b.getDouble();
	312	else
	313	bb = b.getLong();
	314
	315	double error = aa - bb;
	316	if(aa != 0 && bb != 0)
	317	error /= aa;
	318
	319	return uprv_fabs(error);
	320	}
	321
	322	UnicodeString&
	323	NumberFormatRoundTripTest::typeOf(const Formattable& n, UnicodeString& result)
	324	{
	325	if(n.getType() == Formattable::kLong) {
	326	result = UnicodeString(" Long");
	327	}
	328	else if(n.getType() == Formattable::kDouble) {
	329	result = UnicodeString(" Double");
	330	}
	331	else if(n.getType() == Formattable::kString) {
	332	result = UnicodeString(" UnicodeString");
	333	UnicodeString temp;
	334	}
	335
	336	return result;
	337	}
	338
	339
	340	UnicodeString&
	341	NumberFormatRoundTripTest::escape(UnicodeString& s)
	342	{
	343	UnicodeString copy(s);
	344	s.remove();
	345	for(int i = 0; i < copy.length(); ++i) {
	346	UChar c = copy[i];
	347	if(c < 0x00FF)
	348	s += c;
	349	else {
	350	s += "+U";
	351	char temp[16];
	352	sprintf(temp, "%4X", c); // might not work
	353	s += temp;
	354	}
	355	}
	356	return s;
	357	}
	358
	359	#endif /* #if !UCONFIG_NO_FORMATTING */