1 /*
2 *******************************************************************************
3 * Copyright (C) 2004-2012, International Business Machines Corporation and
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
22 /* Constants generated by ICU4J com.ibm.icu.dev.tool.timescale.GenerateCTimeScaleData. */
23 static const int64_t timeScaleTable[UDTS_MAX_SCALE][UTSV_MAX_SCALE_VALUE] = {
24 /* units epochOffset fromMin fromMax toMin toMax epochOffsetP1 epochOffsetM1 unitsRound minRound maxRound */
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)},
34 {microseconds, INT64_C(62135596800000000), INT64_C(-984472800485477580), INT64_C(860201606885477580), INT64_C(-9223372036854775804), INT64_C(9223372036854775804), INT64_C(62135596800000001), INT64_C(62135596799999999), INT64_C(5), INT64_C(-9223372036854775803), INT64_C(9223372036854775802)},
35 };
36
37 U_CAPI int64_t U_EXPORT2
utmscale_getTimeScaleValue(UDateTimeScale timeScale,UTimeScaleValue value,UErrorCode * status)38 utmscale_getTimeScaleValue(UDateTimeScale timeScale, UTimeScaleValue value, UErrorCode *status)
39 {
40 if (status == NULL || U_FAILURE(*status)) {
41 return 0;
42 }
43
44 if (timeScale < UDTS_JAVA_TIME || UDTS_MAX_SCALE <= timeScale
45 || value < UTSV_UNITS_VALUE || UTSV_MAX_SCALE_VALUE <= value)
46 {
47 *status = U_ILLEGAL_ARGUMENT_ERROR;
48 return 0;
49 }
50
51 return timeScaleTable[timeScale][value];
52 }
53
54 U_CAPI int64_t U_EXPORT2
utmscale_fromInt64(int64_t otherTime,UDateTimeScale timeScale,UErrorCode * status)55 utmscale_fromInt64(int64_t otherTime, UDateTimeScale timeScale, UErrorCode *status)
56 {
57 const int64_t *data;
58
59 if (status == NULL || U_FAILURE(*status)) {
60 return 0;
61 }
62
63 if ((int32_t)timeScale < 0 || timeScale >= UDTS_MAX_SCALE) {
64 *status = U_ILLEGAL_ARGUMENT_ERROR;
65 return 0;
66 }
67
68 data = (const int64_t *)(&timeScaleTable[timeScale]);
69
70 if (otherTime < data[UTSV_FROM_MIN_VALUE] || otherTime > data[UTSV_FROM_MAX_VALUE]) {
71 *status = U_ILLEGAL_ARGUMENT_ERROR;
72 return 0;
73 }
74
75 return (otherTime + data[UTSV_EPOCH_OFFSET_VALUE]) * data[UTSV_UNITS_VALUE];
76 }
77
78 U_CAPI int64_t U_EXPORT2
utmscale_toInt64(int64_t universalTime,UDateTimeScale timeScale,UErrorCode * status)79 utmscale_toInt64(int64_t universalTime, UDateTimeScale timeScale, UErrorCode *status)
80 {
81 const int64_t *data;
82
83 if (status == NULL || U_FAILURE(*status)) {
84 return 0;
85 }
86
87 if ((int32_t)timeScale < 0 || timeScale >= UDTS_MAX_SCALE) {
88 *status = U_ILLEGAL_ARGUMENT_ERROR;
89 return 0;
90 }
91
92 data = (const int64_t *)(&timeScaleTable[timeScale]);
93
94 if (universalTime < data[UTSV_TO_MIN_VALUE] || universalTime > data[UTSV_TO_MAX_VALUE]) {
95 *status = U_ILLEGAL_ARGUMENT_ERROR;
96 return 0;
97 }
98
99 if (universalTime < 0) {
100 if (universalTime < data[UTSV_MIN_ROUND_VALUE]) {
101 return (universalTime + data[UTSV_UNITS_ROUND_VALUE]) / data[UTSV_UNITS_VALUE] - data[UTSV_EPOCH_OFFSET_PLUS_1_VALUE];
102 }
103
104 return (universalTime - data[UTSV_UNITS_ROUND_VALUE]) / data[UTSV_UNITS_VALUE] - data[UTSV_EPOCH_OFFSET_VALUE];
105 }
106
107 if (universalTime > data[UTSV_MAX_ROUND_VALUE]) {
108 return (universalTime - data[UTSV_UNITS_ROUND_VALUE]) / data[UTSV_UNITS_VALUE] - data[UTSV_EPOCH_OFFSET_MINUS_1_VALUE];
109 }
110
111 return (universalTime + data[UTSV_UNITS_ROUND_VALUE]) / data[UTSV_UNITS_VALUE] - data[UTSV_EPOCH_OFFSET_VALUE];
112 }
113
114 #endif /* #if !UCONFIG_NO_FORMATTING */
115