utmscale.cpp (6783B)
1 // © 2016 and later: Unicode, Inc. and others. 2 // License & terms of use: http://www.unicode.org/copyright.html 3 /* 4 ******************************************************************************* 5 * Copyright (C) 2004-2012, International Business Machines Corporation and 6 * others. All Rights Reserved. 7 ******************************************************************************* 8 */ 9 10 #include "unicode/utypes.h" 11 12 #if !UCONFIG_NO_FORMATTING 13 14 #include "unicode/utmscale.h" 15 16 #define ticks INT64_C(1) 17 #define microseconds (ticks * 10) 18 #define milliseconds (microseconds * 1000) 19 #define seconds (milliseconds * 1000) 20 #define minutes (seconds * 60) 21 #define hours (minutes * 60) 22 #define days (hours * 24) 23 24 /* Constants generated by ICU4J com.ibm.icu.dev.tool.timescale.GenerateCTimeScaleData. */ 25 static const int64_t timeScaleTable[UDTS_MAX_SCALE][UTSV_MAX_SCALE_VALUE] = { 26 /* units epochOffset fromMin fromMax toMin toMax epochOffsetP1 epochOffsetM1 unitsRound minRound maxRound */ 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 {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)}, 29 {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)}, 30 {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}, 31 {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}, 32 {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)}, 33 {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)}, 34 {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)}, 35 {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)}, 36 {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)}, 37 }; 38 39 U_CAPI int64_t U_EXPORT2 40 utmscale_getTimeScaleValue(UDateTimeScale timeScale, UTimeScaleValue value, UErrorCode *status) 41 { 42 if (status == nullptr || U_FAILURE(*status)) { 43 return 0; 44 } 45 46 if (timeScale < UDTS_JAVA_TIME || UDTS_MAX_SCALE <= timeScale 47 || value < UTSV_UNITS_VALUE || UTSV_MAX_SCALE_VALUE <= value) 48 { 49 *status = U_ILLEGAL_ARGUMENT_ERROR; 50 return 0; 51 } 52 53 return timeScaleTable[timeScale][value]; 54 } 55 56 U_CAPI int64_t U_EXPORT2 57 utmscale_fromInt64(int64_t otherTime, UDateTimeScale timeScale, UErrorCode *status) UPRV_NO_SANITIZE_UNDEFINED { 58 const int64_t *data; 59 60 if (status == nullptr || U_FAILURE(*status)) { 61 return 0; 62 } 63 64 if ((int32_t)timeScale < 0 || timeScale >= UDTS_MAX_SCALE) { 65 *status = U_ILLEGAL_ARGUMENT_ERROR; 66 return 0; 67 } 68 69 data = (const int64_t *)(&timeScaleTable[timeScale]); 70 71 if (otherTime < data[UTSV_FROM_MIN_VALUE] || otherTime > data[UTSV_FROM_MAX_VALUE]) { 72 *status = U_ILLEGAL_ARGUMENT_ERROR; 73 return 0; 74 } 75 76 return (otherTime + data[UTSV_EPOCH_OFFSET_VALUE]) * data[UTSV_UNITS_VALUE]; 77 } 78 79 U_CAPI int64_t U_EXPORT2 80 utmscale_toInt64(int64_t universalTime, UDateTimeScale timeScale, UErrorCode *status) UPRV_NO_SANITIZE_UNDEFINED { 81 const int64_t *data; 82 83 if (status == nullptr || 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 */