[apple/icu.git] / icuSources / i18n / utmscale.c

/*
*******************************************************************************
* Copyright (C) 2004-2006, International Business Machines Corporation and
* others. All Rights Reserved.
*******************************************************************************
*/

#include "unicode/utypes.h"

#if !UCONFIG_NO_FORMATTING

#include "unicode/utmscale.h"

#define ticks        INT64_C(1)
#define microseconds (ticks * 10)
#define milliseconds (microseconds * 1000)
#define seconds      (milliseconds * 1000)
#define minutes      (seconds * 60)
#define hours        (minutes * 60)
#define days         (hours * 24)

/* Constants generated by ICU4J com.ibm.icu.dev.tool.timescale.GenerateCTimeScaleData. */
static const int64_t timeScaleTable[UDTS_MAX_SCALE][UTSV_MAX_SCALE_VALUE] = {
  /*    units             epochOffset                     fromMin                        fromMax                            toMin                        toMax                    epochOffsetP1                epochOffsetM1              unitsRound                    minRound                     maxRound          */
    {milliseconds, INT64_C(62135596800000),     INT64_C(-984472800485477),     INT64_C(860201606885477),     INT64_C(-9223372036854774999), INT64_C(9223372036854774999), INT64_C(62135596800001),     INT64_C(62135596799999),     INT64_C(5000),         INT64_C(-9223372036854770808), INT64_C(9223372036854770807)},
    {seconds,      INT64_C(62135596800),        INT64_C(-984472800485),        INT64_C(860201606885),        U_INT64_MIN,                   U_INT64_MAX,                  INT64_C(62135596801),        INT64_C(62135596799),        INT64_C(5000000),      INT64_C(-9223372036849775808), INT64_C(9223372036849775807)},
    {milliseconds, INT64_C(62135596800000),     INT64_C(-984472800485477),     INT64_C(860201606885477),     INT64_C(-9223372036854774999), INT64_C(9223372036854774999), INT64_C(62135596800001),     INT64_C(62135596799999),     INT64_C(5000),         INT64_C(-9223372036854770808), INT64_C(9223372036854770807)},
    {ticks,        INT64_C(504911232000000000), U_INT64_MIN,                   INT64_C(8718460804854775807), INT64_C(-8718460804854775808), U_INT64_MAX,                  INT64_C(504911232000000000), INT64_C(504911232000000000), INT64_C(0),            U_INT64_MIN,                   U_INT64_MAX},
    {ticks,        INT64_C(0),                  U_INT64_MIN,                   U_INT64_MAX,                  U_INT64_MIN,                   U_INT64_MAX,                  INT64_C(0),                  INT64_C(0),                  INT64_C(0),            U_INT64_MIN,                   U_INT64_MAX},
    {seconds,      INT64_C(60052752000),        INT64_C(-982389955685),        INT64_C(862284451685),        U_INT64_MIN,                   U_INT64_MAX,                  INT64_C(60052752001),        INT64_C(60052751999),        INT64_C(5000000),      INT64_C(-9223372036849775808), INT64_C(9223372036849775807)},
    {seconds,      INT64_C(63113904000),        INT64_C(-985451107685),        INT64_C(859223299685),        U_INT64_MIN,                   U_INT64_MAX,                  INT64_C(63113904001),        INT64_C(63113903999),        INT64_C(5000000),      INT64_C(-9223372036849775808), INT64_C(9223372036849775807)},
    {days,         INT64_C(693594),             INT64_C(-11368793),            INT64_C(9981605),             U_INT64_MIN,                   U_INT64_MAX,                  INT64_C(693595),             INT64_C(693593),             INT64_C(432000000000), INT64_C(-9223371604854775808), INT64_C(9223371604854775807)},
    {days,         INT64_C(693594),             INT64_C(-11368793),            INT64_C(9981605),             U_INT64_MIN,                   U_INT64_MAX,                  INT64_C(693595),             INT64_C(693593),             INT64_C(432000000000), INT64_C(-9223371604854775808), INT64_C(9223371604854775807)},
};

U_CAPI int64_t U_EXPORT2
utmscale_getTimeScaleValue(UDateTimeScale timeScale, UTimeScaleValue value, UErrorCode *status)
{
    if (status == NULL || U_FAILURE(*status)) {
        return 0;
    }

    if (timeScale < UDTS_JAVA_TIME || UDTS_MAX_SCALE <= timeScale
        || value < UTSV_UNITS_VALUE || UTSV_MAX_SCALE_VALUE <= value)
    {
        *status = U_ILLEGAL_ARGUMENT_ERROR;
        return 0;
    }

    return timeScaleTable[timeScale][value];
}

U_CAPI int64_t U_EXPORT2
utmscale_fromInt64(int64_t otherTime, UDateTimeScale timeScale, UErrorCode *status)
{
    const int64_t *data;
    
    if (status == NULL || U_FAILURE(*status)) {
        return 0;
    }

    if (timeScale < 0 || timeScale >= UDTS_MAX_SCALE) {
        *status = U_ILLEGAL_ARGUMENT_ERROR;
        return 0;
    }

    data = (const int64_t *)(&timeScaleTable[timeScale]);

    if (otherTime < data[UTSV_FROM_MIN_VALUE] || otherTime > data[UTSV_FROM_MAX_VALUE]) {
        *status = U_ILLEGAL_ARGUMENT_ERROR;
        return 0;
    }
    
    return (otherTime + data[UTSV_EPOCH_OFFSET_VALUE]) * data[UTSV_UNITS_VALUE];
}

U_CAPI int64_t U_EXPORT2
utmscale_toInt64(int64_t universalTime, UDateTimeScale timeScale, UErrorCode *status)
{
    const int64_t *data;
    
    if (status == NULL || U_FAILURE(*status)) {
        return 0;
    }

    if (timeScale < 0 || timeScale >= UDTS_MAX_SCALE) {
        *status = U_ILLEGAL_ARGUMENT_ERROR;
        return 0;
    }

    data = (const int64_t *)(&timeScaleTable[timeScale]);

    if (universalTime < data[UTSV_TO_MIN_VALUE] || universalTime > data[UTSV_TO_MAX_VALUE]) {
        *status = U_ILLEGAL_ARGUMENT_ERROR;
        return 0;
    }
    
    if (universalTime < 0) {
        if (universalTime < data[UTSV_MIN_ROUND_VALUE]) {
            return (universalTime + data[UTSV_UNITS_ROUND_VALUE]) / data[UTSV_UNITS_VALUE] - data[UTSV_EPOCH_OFFSET_PLUS_1_VALUE];
        }
        
        return (universalTime - data[UTSV_UNITS_ROUND_VALUE]) / data[UTSV_UNITS_VALUE] - data[UTSV_EPOCH_OFFSET_VALUE];
    }
    
    if (universalTime > data[UTSV_MAX_ROUND_VALUE]) {
        return (universalTime - data[UTSV_UNITS_ROUND_VALUE]) / data[UTSV_UNITS_VALUE] - data[UTSV_EPOCH_OFFSET_MINUS_1_VALUE];
    }
    
    return (universalTime + data[UTSV_UNITS_ROUND_VALUE]) / data[UTSV_UNITS_VALUE] - data[UTSV_EPOCH_OFFSET_VALUE];
}

#endif /* #if !UCONFIG_NO_FORMATTING */
Commit	Line	Data
374ca955 A	1	/*
374ca955 A	2	*******************************************************************************
73c04bcf	3	* Copyright (C) 2004-2006, International Business Machines Corporation and
374ca955 A	4	* others. All Rights Reserved.
	5	*******************************************************************************
	6	*/
	7
	8	#include "unicode/utypes.h"
	9
	10	#if !UCONFIG_NO_FORMATTING
	11
	12	#include "unicode/utmscale.h"
	13
	14	#define ticks INT64_C(1)
	15	#define microseconds (ticks * 10)
	16	#define milliseconds (microseconds * 1000)
	17	#define seconds (milliseconds * 1000)
	18	#define minutes (seconds * 60)
	19	#define hours (minutes * 60)
	20	#define days (hours * 24)
	21
73c04bcf A	22	/* Constants generated by ICU4J com.ibm.icu.dev.tool.timescale.GenerateCTimeScaleData. */
73c04bcf A	23	static const int64_t timeScaleTable[UDTS_MAX_SCALE][UTSV_MAX_SCALE_VALUE] = {
374ca955	24	/* units epochOffset fromMin fromMax toMin toMax epochOffsetP1 epochOffsetM1 unitsRound minRound maxRound */
73c04bcf A	25	{milliseconds, INT64_C(62135596800000), INT64_C(-984472800485477), INT64_C(860201606885477), INT64_C(-9223372036854774999), INT64_C(9223372036854774999), INT64_C(62135596800001), INT64_C(62135596799999), INT64_C(5000), INT64_C(-9223372036854770808), INT64_C(9223372036854770807)},
	26	{seconds, INT64_C(62135596800), INT64_C(-984472800485), INT64_C(860201606885), U_INT64_MIN, U_INT64_MAX, INT64_C(62135596801), INT64_C(62135596799), INT64_C(5000000), INT64_C(-9223372036849775808), INT64_C(9223372036849775807)},
	27	{milliseconds, INT64_C(62135596800000), INT64_C(-984472800485477), INT64_C(860201606885477), INT64_C(-9223372036854774999), INT64_C(9223372036854774999), INT64_C(62135596800001), INT64_C(62135596799999), INT64_C(5000), INT64_C(-9223372036854770808), INT64_C(9223372036854770807)},
	28	{ticks, INT64_C(504911232000000000), U_INT64_MIN, INT64_C(8718460804854775807), INT64_C(-8718460804854775808), U_INT64_MAX, INT64_C(504911232000000000), INT64_C(504911232000000000), INT64_C(0), U_INT64_MIN, U_INT64_MAX},
	29	{ticks, INT64_C(0), U_INT64_MIN, U_INT64_MAX, U_INT64_MIN, U_INT64_MAX, INT64_C(0), INT64_C(0), INT64_C(0), U_INT64_MIN, U_INT64_MAX},
	30	{seconds, INT64_C(60052752000), INT64_C(-982389955685), INT64_C(862284451685), U_INT64_MIN, U_INT64_MAX, INT64_C(60052752001), INT64_C(60052751999), INT64_C(5000000), INT64_C(-9223372036849775808), INT64_C(9223372036849775807)},
	31	{seconds, INT64_C(63113904000), INT64_C(-985451107685), INT64_C(859223299685), U_INT64_MIN, U_INT64_MAX, INT64_C(63113904001), INT64_C(63113903999), INT64_C(5000000), INT64_C(-9223372036849775808), INT64_C(9223372036849775807)},
	32	{days, INT64_C(693594), INT64_C(-11368793), INT64_C(9981605), U_INT64_MIN, U_INT64_MAX, INT64_C(693595), INT64_C(693593), INT64_C(432000000000), INT64_C(-9223371604854775808), INT64_C(9223371604854775807)},
	33	{days, INT64_C(693594), INT64_C(-11368793), INT64_C(9981605), U_INT64_MIN, U_INT64_MAX, INT64_C(693595), INT64_C(693593), INT64_C(432000000000), INT64_C(-9223371604854775808), INT64_C(9223371604854775807)},
374ca955 A	34	};
	35
	36	U_CAPI int64_t U_EXPORT2
	37	utmscale_getTimeScaleValue(UDateTimeScale timeScale, UTimeScaleValue value, UErrorCode *status)
	38	{
374ca955 A	39	if (status == NULL \|\| U_FAILURE(*status)) {
	40	return 0;
	41	}
	42
73c04bcf A	43	if (timeScale < UDTS_JAVA_TIME \|\| UDTS_MAX_SCALE <= timeScale
73c04bcf A	44	\|\| value < UTSV_UNITS_VALUE \|\| UTSV_MAX_SCALE_VALUE <= value)
374ca955	45	{
374ca955 A	46	*status = U_ILLEGAL_ARGUMENT_ERROR;
	47	return 0;
	48	}
73c04bcf A	49
73c04bcf A	50	return timeScaleTable[timeScale][value];
374ca955 A	51	}
	52
	53	U_CAPI int64_t U_EXPORT2
	54	utmscale_fromInt64(int64_t otherTime, UDateTimeScale timeScale, UErrorCode *status)
	55	{
73c04bcf	56	const int64_t *data;
374ca955 A	57
	58	if (status == NULL \|\| U_FAILURE(*status)) {
	59	return 0;
	60	}
	61
	62	if (timeScale < 0 \|\| timeScale >= UDTS_MAX_SCALE) {
	63	*status = U_ILLEGAL_ARGUMENT_ERROR;
	64	return 0;
	65	}
	66
73c04bcf	67	data = (const int64_t *)(&timeScaleTable[timeScale]);
374ca955	68
73c04bcf	69	if (otherTime < data[UTSV_FROM_MIN_VALUE] \|\| otherTime > data[UTSV_FROM_MAX_VALUE]) {
374ca955 A	70	*status = U_ILLEGAL_ARGUMENT_ERROR;
	71	return 0;
	72	}
	73
73c04bcf	74	return (otherTime + data[UTSV_EPOCH_OFFSET_VALUE]) * data[UTSV_UNITS_VALUE];
374ca955 A	75	}
	76
	77	U_CAPI int64_t U_EXPORT2
	78	utmscale_toInt64(int64_t universalTime, UDateTimeScale timeScale, UErrorCode *status)
	79	{
73c04bcf	80	const int64_t *data;
374ca955 A	81
	82	if (status == NULL \|\| U_FAILURE(*status)) {
	83	return 0;
	84	}
	85
	86	if (timeScale < 0 \|\| timeScale >= UDTS_MAX_SCALE) {
	87	*status = U_ILLEGAL_ARGUMENT_ERROR;
	88	return 0;
	89	}
	90
73c04bcf	91	data = (const int64_t *)(&timeScaleTable[timeScale]);
374ca955	92
73c04bcf	93	if (universalTime < data[UTSV_TO_MIN_VALUE] \|\| universalTime > data[UTSV_TO_MAX_VALUE]) {
374ca955 A	94	*status = U_ILLEGAL_ARGUMENT_ERROR;
	95	return 0;
	96	}
	97
	98	if (universalTime < 0) {
73c04bcf A	99	if (universalTime < data[UTSV_MIN_ROUND_VALUE]) {
73c04bcf A	100	return (universalTime + data[UTSV_UNITS_ROUND_VALUE]) / data[UTSV_UNITS_VALUE] - data[UTSV_EPOCH_OFFSET_PLUS_1_VALUE];
374ca955 A	101	}
374ca955 A	102
73c04bcf	103	return (universalTime - data[UTSV_UNITS_ROUND_VALUE]) / data[UTSV_UNITS_VALUE] - data[UTSV_EPOCH_OFFSET_VALUE];
374ca955 A	104	}
374ca955 A	105
73c04bcf A	106	if (universalTime > data[UTSV_MAX_ROUND_VALUE]) {
73c04bcf A	107	return (universalTime - data[UTSV_UNITS_ROUND_VALUE]) / data[UTSV_UNITS_VALUE] - data[UTSV_EPOCH_OFFSET_MINUS_1_VALUE];
374ca955 A	108	}
374ca955 A	109
73c04bcf	110	return (universalTime + data[UTSV_UNITS_ROUND_VALUE]) / data[UTSV_UNITS_VALUE] - data[UTSV_EPOCH_OFFSET_VALUE];
374ca955 A	111	}
	112
	113	#endif /* #if !UCONFIG_NO_FORMATTING */