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+362
-139
+31
-32
scripts/generateAirportTzList.ts
+31
-32
scripts/generateAirportTzList.ts
···
454
454
cContent += `// Year-specific DST data for ${year}\n\n`;
455
455
cContent += `#include <stdint.h>\n\n`;
456
456
457
-
// Airport Code Pool (3-letter IATA codes)
458
-
cContent += `// Total airport codes: ${codePool.length}\n`;
459
-
cContent += `static const char airport_code_pool[] =\n`;
460
-
if (codePool.length > 0) {
461
-
for (let i = 0; i < codePool.length; i++) {
462
-
if (i % 8 === 0) cContent += ` `; // Indent
463
-
cContent += `"${codePool[i]}"`;
464
-
if ((i + 1) % 8 === 0 || i === codePool.length - 1) {
465
-
cContent += `\n`;
466
-
} else {
467
-
cContent += ` `;
468
-
}
469
-
}
470
-
cContent += `;\n\n`;
471
-
} else {
472
-
cContent += ` ""; // Empty pool\n`;
473
-
cContent += `;
457
+
// Airport Code Pool (bit-packed 15 bits/code)
458
+
cContent += `// Total airport codes: ${codePool.length} (codes listed for debug)\n`;
459
+
cContent += `// Codes: ${codePool.join(', ')}\n`;
460
+
cContent += `static const uint16_t airport_code_pool_bits[] = {\n`;
461
+
for (const code of codePool) {
462
+
// pack each letter A-Z into 5 bits
463
+
const b0 = code.charCodeAt(0) - 65;
464
+
const b1 = code.charCodeAt(1) - 65;
465
+
const b2 = code.charCodeAt(2) - 65;
466
+
const bits = (b0 << 10) | (b1 << 5) | b2;
467
+
cContent += ` 0x${bits.toString(16)}, /* ${code} */\n`;
468
+
}
469
+
cContent += `};\n\n`;
474
470
475
-
`;
476
-
}
471
+
// Count of bit-packed airport codes
472
+
cContent += `#define AIRPORT_CODE_POOL_BITS_COUNT ${codePool.length}\n\n`;
477
473
478
474
// Airport Name Pool (pointers to strings)
479
475
cContent += `// Total airport names: ${namePool.length}\n`;
···
498
494
cContent += ` "\0"; // Empty pool\n\n`;
499
495
}
500
496
501
-
// TzInfo struct definition
497
+
// Packed TzInfo struct: quarter-hours and 32-bit UTC
502
498
cContent += `typedef struct {\n`;
503
-
cContent += ` float std_offset_hours;\n`;
504
-
cContent += ` float dst_offset_hours;\n`;
505
-
cContent += ` int64_t dst_start_utc;\n`;
506
-
cContent += ` int64_t dst_end_utc;\n`;
507
-
cContent += ` int name_offset; // Index into airport_code_pool & airport_name_pool\n`;
508
-
cContent += ` int name_count; // Number of unique airports for this tz variant\n`;
499
+
cContent += ` int8_t std_quarters; // std offset in 0.25h units\n`;
500
+
cContent += ` int8_t dst_quarters; // dst offset in 0.25h units\n`;
501
+
cContent += ` int32_t dst_start_utc; // DST start (seconds since epoch)\n`;
502
+
cContent += ` int32_t dst_end_utc; // DST end (seconds since epoch)\n`;
503
+
cContent += ` uint16_t name_offset; // Index into airport_name_pool\n`;
504
+
cContent += ` uint8_t name_count; // Number of codes in this bucket\n`;
509
505
cContent += `} TzInfo;\n\n`;
510
506
511
-
// airport_tz_list array initialization
507
+
// airport_tz_list array: packed quarters and 32-bit DST timestamps
512
508
cContent += `// Total timezone variants: ${sortedBuckets.length}\n`;
513
509
cContent += `static const TzInfo airport_tz_list[] = {\n`;
514
510
if (sortedBuckets.length > 0) {
515
511
for (const bucket of sortedBuckets) {
516
-
const std_h = bucket.std / 3600.0;
517
-
const dst_h = bucket.dst / 3600.0;
518
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// Escape any backslashes potentially in timezone names for the comment
519
-
const tzComment = Array.from(bucket.tzNames).slice(0,3).join(', ').replace(/\\/g, '\\');
520
-
cContent += ` { ${std_h.toFixed(2)}f, ${dst_h.toFixed(2)}f, ${bucket.start}LL, ${bucket.end}LL, ${bucket.offset ?? 0}, ${bucket.count ?? 0} }, // ${tzComment}...\n`;
512
+
// pack standard/dst offsets: seconds -> quarter-hours (900s)
513
+
const stdQ = Math.round(bucket.std / 900);
514
+
const dstQ = Math.round(bucket.dst / 900);
515
+
// original hours for debug
516
+
const std_h = (bucket.std / 3600.0).toFixed(2);
517
+
const dst_h = (bucket.dst / 3600.0).toFixed(2);
518
+
const tzComment = Array.from(bucket.tzNames).slice(0,3).join(', ');
519
+
cContent += ` { ${stdQ}, ${dstQ}, ${bucket.start}, ${bucket.end}, ${bucket.offset ?? 0}, ${bucket.count ?? 0} }, // ${tzComment} (${std_h}h/${dst_h}h)\n`;
521
520
}
522
521
} else {
523
522
cContent += ` // Empty list\n`;
+318
-101
src/c/airport_tz_list.c
+318
-101
src/c/airport_tz_list.c
···
1
1
// Auto-generated by generateAirportTzList.ts
2
-
// Generated on: 2025-04-24T21:53:42.004Z
2
+
// Generated on: 2025-04-24T22:10:45.033Z
3
3
// Year-specific DST data for 2025
4
4
5
5
#include <stdint.h>
6
6
7
-
// Total airport codes: 245
8
-
static const char airport_code_pool[] =
9
-
"PPG" "IUE" "FTI" "HNL" "KOA" "LIH" "ITO" "MKK"
10
-
"JHM" "LNY" "ADK" "NHV" "AUQ" "UAP" "GMR" "ANC"
11
-
"LAX" "SFO" "LAS" "SEA" "YVR" "SAN" "PDX" "OAK"
12
-
"SJC" "SMF" "PHX" "DEN" "SLC" "YYC" "YEG" "ABQ"
13
-
"ELP" "MEX" "ORD" "DFW" "IAH" "MSP" "MDW" "DAL"
14
-
"STL" "BNA" "AUS" "IPC" "CUN" "HAV" "ATL" "JFK"
15
-
"YYZ" "CLT" "MCO" "MIA" "EWR" "BOS" "DTW" "FLL"
16
-
"MUN" "CGB" "MAO" "SXM" "CGR" "PVH" "BVB" "YHZ"
17
-
"SCL" "YYT" "YDF" "YAY" "YWM" "GRU" "CGH" "BSB"
18
-
"GIG" "AEP" "EZE" "CNF" "VCP" "SDU" "POA" "FSP"
19
-
"FEN" "GOH" "SID" "PDL" "TER" "DKR" "LHR" "LGW"
20
-
"DUB" "MAN" "LIS" "STN" "LTN" "EDI" "LPA" "BHX"
21
-
"CMN" "CDG" "AMS" "FRA" "MAD" "BCN" "MUC" "FCO"
22
-
"ZRH" "CPH" "PMI" "JNB" "CPT" "TLV" "BEY" "KIV"
23
-
"ATH" "HEL" "OTP" "KBP" "HER" "SOF" "GZA" "CAI"
24
-
"IST" "SVO" "JED" "SAW" "DME" "AYT" "RUH" "VKO"
25
-
"LED" "ESB" "THR" "MHD" "IKA" "SYZ" "AWZ" "KIH"
26
-
"IFN" "TBZ" "BND" "PGU" "DXB" "AUH" "SHJ" "MRU"
27
-
"TBS" "KUF" "RUN" "DWC" "ASF" "BUS" "KBL" "HEA"
28
-
"FBD" "SVX" "UFA" "TJM" "SGC" "CEK" "PEE" "NUX"
29
-
"REN" "NJC" "SLY" "DEL" "BOM" "BLR" "CCU" "MAA"
30
-
"COK" "PNQ" "AMD" "GOI" "JAI" "KTM" "BWA" "BIR"
31
-
"TMI" "OMS" "RGN" "MDL" "CGK" "BKK" "DMK" "SGN"
32
-
"HAN" "SUB" "HKT" "KNO" "DAD" "CNX" "PEK" "HKG"
33
-
"PVG" "CAN" "SIN" "KUL" "CTU" "SZX" "TPE" "KMG"
34
-
"HND" "ICN" "NRT" "CJU" "KIX" "GMP" "FUK" "CTS"
35
-
"OKA" "PUS" "DRW" "ASP" "AYQ" "ADL" "PLO" "MGB"
36
-
"OLP" "BNE" "OOL" "CNS" "VVO" "KHV" "TSV" "SYD"
37
-
"MEL" "CBR" "HBA" "LDH" "UUS" "NLK" "NAN" "PKC"
38
-
"AKL" "CHC" "WLG" "ZQN" "NSN" "DUD" "NPE" "PMR"
39
-
"CHT" "APW" "TBU" "EUA" "CXI"
40
-
;
7
+
// Total airport codes: 245 (codes listed for debug)
8
+
// Codes: PPG, IUE, FTI, HNL, KOA, LIH, ITO, MKK, JHM, LNY, ADK, NHV, AUQ, UAP, GMR, ANC, LAX, SFO, LAS, SEA, YVR, SAN, PDX, OAK, SJC, SMF, PHX, DEN, SLC, YYC, YEG, ABQ, ELP, MEX, ORD, DFW, IAH, MSP, MDW, DAL, STL, BNA, AUS, IPC, CUN, HAV, ATL, JFK, YYZ, CLT, MCO, MIA, EWR, BOS, DTW, FLL, MUN, CGB, MAO, SXM, CGR, PVH, BVB, YHZ, SCL, YYT, YDF, YAY, YWM, GRU, CGH, BSB, GIG, AEP, EZE, CNF, VCP, SDU, POA, FSP, FEN, GOH, SID, PDL, TER, DKR, LHR, LGW, DUB, MAN, LIS, STN, LTN, EDI, LPA, BHX, CMN, CDG, AMS, FRA, MAD, BCN, MUC, FCO, ZRH, CPH, PMI, JNB, CPT, TLV, BEY, KIV, ATH, HEL, OTP, KBP, HER, SOF, GZA, CAI, IST, SVO, JED, SAW, DME, AYT, RUH, VKO, LED, ESB, THR, MHD, IKA, SYZ, AWZ, KIH, IFN, TBZ, BND, PGU, DXB, AUH, SHJ, MRU, TBS, KUF, RUN, DWC, ASF, BUS, KBL, HEA, FBD, SVX, UFA, TJM, SGC, CEK, PEE, NUX, REN, NJC, SLY, DEL, BOM, BLR, CCU, MAA, COK, PNQ, AMD, GOI, JAI, KTM, BWA, BIR, TMI, OMS, RGN, MDL, CGK, BKK, DMK, SGN, HAN, SUB, HKT, KNO, DAD, CNX, PEK, HKG, PVG, CAN, SIN, KUL, CTU, SZX, TPE, KMG, HND, ICN, NRT, CJU, KIX, GMP, FUK, CTS, OKA, PUS, DRW, ASP, AYQ, ADL, PLO, MGB, OLP, BNE, OOL, CNS, VVO, KHV, TSV, SYD, MEL, CBR, HBA, LDH, UUS, NLK, NAN, PKC, AKL, CHC, WLG, ZQN, NSN, DUD, NPE, PMR, CHT, APW, TBU, EUA, CXI
9
+
static const uint16_t airport_code_pool_bits[] = {
10
+
0x3de6, /* PPG */
11
+
0x2284, /* IUE */
12
+
0x1668, /* FTI */
13
+
0x1dab, /* HNL */
14
+
0x29c0, /* KOA */
15
+
0x2d07, /* LIH */
16
+
0x226e, /* ITO */
17
+
0x314a, /* MKK */
18
+
0x24ec, /* JHM */
19
+
0x2db8, /* LNY */
20
+
0x6a, /* ADK */
21
+
0x34f5, /* NHV */
22
+
0x290, /* AUQ */
23
+
0x500f, /* UAP */
24
+
0x1991, /* GMR */
25
+
0x1a2, /* ANC */
26
+
0x2c17, /* LAX */
27
+
0x48ae, /* SFO */
28
+
0x2c12, /* LAS */
29
+
0x4880, /* SEA */
30
+
0x62b1, /* YVR */
31
+
0x480d, /* SAN */
32
+
0x3c77, /* PDX */
33
+
0x380a, /* OAK */
34
+
0x4922, /* SJC */
35
+
0x4985, /* SMF */
36
+
0x3cf7, /* PHX */
37
+
0xc8d, /* DEN */
38
+
0x4962, /* SLC */
39
+
0x6302, /* YYC */
40
+
0x6086, /* YEG */
41
+
0x30, /* ABQ */
42
+
0x116f, /* ELP */
43
+
0x3097, /* MEX */
44
+
0x3a23, /* ORD */
45
+
0xcb6, /* DFW */
46
+
0x2007, /* IAH */
47
+
0x324f, /* MSP */
48
+
0x3076, /* MDW */
49
+
0xc0b, /* DAL */
50
+
0x4a6b, /* STL */
51
+
0x5a0, /* BNA */
52
+
0x292, /* AUS */
53
+
0x21e2, /* IPC */
54
+
0xa8d, /* CUN */
55
+
0x1c15, /* HAV */
56
+
0x26b, /* ATL */
57
+
0x24aa, /* JFK */
58
+
0x6319, /* YYZ */
59
+
0x973, /* CLT */
60
+
0x304e, /* MCO */
61
+
0x3100, /* MIA */
62
+
0x12d1, /* EWR */
63
+
0x5d2, /* BOS */
64
+
0xe76, /* DTW */
65
+
0x156b, /* FLL */
66
+
0x328d, /* MUN */
67
+
0x8c1, /* CGB */
68
+
0x300e, /* MAO */
69
+
0x4aec, /* SXM */
70
+
0x8d1, /* CGR */
71
+
0x3ea7, /* PVH */
72
+
0x6a1, /* BVB */
73
+
0x60f9, /* YHZ */
74
+
0x484b, /* SCL */
75
+
0x6313, /* YYT */
76
+
0x6065, /* YDF */
77
+
0x6018, /* YAY */
78
+
0x62cc, /* YWM */
79
+
0x1a34, /* GRU */
80
+
0x8c7, /* CGH */
81
+
0x641, /* BSB */
82
+
0x1906, /* GIG */
83
+
0x8f, /* AEP */
84
+
0x1324, /* EZE */
85
+
0x9a5, /* CNF */
86
+
0x544f, /* VCP */
87
+
0x4874, /* SDU */
88
+
0x3dc0, /* POA */
89
+
0x164f, /* FSP */
90
+
0x148d, /* FEN */
91
+
0x19c7, /* GOH */
92
+
0x4903, /* SID */
93
+
0x3c6b, /* PDL */
94
+
0x4c91, /* TER */
95
+
0xd51, /* DKR */
96
+
0x2cf1, /* LHR */
97
+
0x2cd6, /* LGW */
98
+
0xe81, /* DUB */
99
+
0x300d, /* MAN */
100
+
0x2d12, /* LIS */
101
+
0x4a6d, /* STN */
102
+
0x2e6d, /* LTN */
103
+
0x1068, /* EDI */
104
+
0x2de0, /* LPA */
105
+
0x4f7, /* BHX */
106
+
0x98d, /* CMN */
107
+
0x866, /* CDG */
108
+
0x192, /* AMS */
109
+
0x1620, /* FRA */
110
+
0x3003, /* MAD */
111
+
0x44d, /* BCN */
112
+
0x3282, /* MUC */
113
+
0x144e, /* FCO */
114
+
0x6627, /* ZRH */
115
+
0x9e7, /* CPH */
116
+
0x3d88, /* PMI */
117
+
0x25a1, /* JNB */
118
+
0x9f3, /* CPT */
119
+
0x4d75, /* TLV */
120
+
0x498, /* BEY */
121
+
0x2915, /* KIV */
122
+
0x267, /* ATH */
123
+
0x1c8b, /* HEL */
124
+
0x3a6f, /* OTP */
125
+
0x282f, /* KBP */
126
+
0x1c91, /* HER */
127
+
0x49c5, /* SOF */
128
+
0x1b20, /* GZA */
129
+
0x808, /* CAI */
130
+
0x2253, /* IST */
131
+
0x4aae, /* SVO */
132
+
0x2483, /* JED */
133
+
0x4816, /* SAW */
134
+
0xd84, /* DME */
135
+
0x313, /* AYT */
136
+
0x4687, /* RUH */
137
+
0x554e, /* VKO */
138
+
0x2c83, /* LED */
139
+
0x1241, /* ESB */
140
+
0x4cf1, /* THR */
141
+
0x30e3, /* MHD */
142
+
0x2140, /* IKA */
143
+
0x4b19, /* SYZ */
144
+
0x2d9, /* AWZ */
145
+
0x2907, /* KIH */
146
+
0x20ad, /* IFN */
147
+
0x4c39, /* TBZ */
148
+
0x5a3, /* BND */
149
+
0x3cd4, /* PGU */
150
+
0xee1, /* DXB */
151
+
0x287, /* AUH */
152
+
0x48e9, /* SHJ */
153
+
0x3234, /* MRU */
154
+
0x4c32, /* TBS */
155
+
0x2a85, /* KUF */
156
+
0x468d, /* RUN */
157
+
0xec2, /* DWC */
158
+
0x245, /* ASF */
159
+
0x692, /* BUS */
160
+
0x282b, /* KBL */
161
+
0x1c80, /* HEA */
162
+
0x1423, /* FBD */
163
+
0x4ab7, /* SVX */
164
+
0x50a0, /* UFA */
165
+
0x4d2c, /* TJM */
166
+
0x48c2, /* SGC */
167
+
0x88a, /* CEK */
168
+
0x3c84, /* PEE */
169
+
0x3697, /* NUX */
170
+
0x448d, /* REN */
171
+
0x3522, /* NJC */
172
+
0x4978, /* SLY */
173
+
0xc8b, /* DEL */
174
+
0x5cc, /* BOM */
175
+
0x571, /* BLR */
176
+
0x854, /* CCU */
177
+
0x3000, /* MAA */
178
+
0x9ca, /* COK */
179
+
0x3db0, /* PNQ */
180
+
0x183, /* AMD */
181
+
0x19c8, /* GOI */
182
+
0x2408, /* JAI */
183
+
0x2a6c, /* KTM */
184
+
0x6c0, /* BWA */
185
+
0x511, /* BIR */
186
+
0x4d88, /* TMI */
187
+
0x3992, /* OMS */
188
+
0x44cd, /* RGN */
189
+
0x306b, /* MDL */
190
+
0x8ca, /* CGK */
191
+
0x54a, /* BKK */
192
+
0xd8a, /* DMK */
193
+
0x48cd, /* SGN */
194
+
0x1c0d, /* HAN */
195
+
0x4a81, /* SUB */
196
+
0x1d53, /* HKT */
197
+
0x29ae, /* KNO */
198
+
0xc03, /* DAD */
199
+
0x9b7, /* CNX */
200
+
0x3c8a, /* PEK */
201
+
0x1d46, /* HKG */
202
+
0x3ea6, /* PVG */
203
+
0x80d, /* CAN */
204
+
0x490d, /* SIN */
205
+
0x2a8b, /* KUL */
206
+
0xa74, /* CTU */
207
+
0x4b37, /* SZX */
208
+
0x4de4, /* TPE */
209
+
0x2986, /* KMG */
210
+
0x1da3, /* HND */
211
+
0x204d, /* ICN */
212
+
0x3633, /* NRT */
213
+
0x934, /* CJU */
214
+
0x2917, /* KIX */
215
+
0x198f, /* GMP */
216
+
0x168a, /* FUK */
217
+
0xa72, /* CTS */
218
+
0x3940, /* OKA */
219
+
0x3e92, /* PUS */
220
+
0xe36, /* DRW */
221
+
0x24f, /* ASP */
222
+
0x310, /* AYQ */
223
+
0x6b, /* ADL */
224
+
0x3d6e, /* PLO */
225
+
0x30c1, /* MGB */
226
+
0x396f, /* OLP */
227
+
0x5a4, /* BNE */
228
+
0x39cb, /* OOL */
229
+
0x9b2, /* CNS */
230
+
0x56ae, /* VVO */
231
+
0x28f5, /* KHV */
232
+
0x4e55, /* TSV */
233
+
0x4b03, /* SYD */
234
+
0x308b, /* MEL */
235
+
0x831, /* CBR */
236
+
0x1c20, /* HBA */
237
+
0x2c67, /* LDH */
238
+
0x5292, /* UUS */
239
+
0x356a, /* NLK */
240
+
0x340d, /* NAN */
241
+
0x3d42, /* PKC */
242
+
0x14b, /* AKL */
243
+
0x8e2, /* CHC */
244
+
0x5966, /* WLG */
245
+
0x660d, /* ZQN */
246
+
0x364d, /* NSN */
247
+
0xe83, /* DUD */
248
+
0x35e4, /* NPE */
249
+
0x3d91, /* PMR */
250
+
0x8f3, /* CHT */
251
+
0x1f6, /* APW */
252
+
0x4c34, /* TBU */
253
+
0x1280, /* EUA */
254
+
0xae8, /* CXI */
255
+
};
256
+
257
+
#define AIRPORT_CODE_POOL_BITS_COUNT 245
41
258
42
259
// Total airport names: 245
43
260
static const char airport_name_pool[] =
···
110
327
;
111
328
112
329
typedef struct {
113
-
float std_offset_hours;
114
-
float dst_offset_hours;
115
-
int64_t dst_start_utc;
116
-
int64_t dst_end_utc;
117
-
int name_offset; // Index into airport_code_pool & airport_name_pool
118
-
int name_count; // Number of unique airports for this tz variant
330
+
int8_t std_quarters; // std offset in 0.25h units
331
+
int8_t dst_quarters; // dst offset in 0.25h units
332
+
int32_t dst_start_utc; // DST start (seconds since epoch)
333
+
int32_t dst_end_utc; // DST end (seconds since epoch)
334
+
uint16_t name_offset; // Index into airport_name_pool
335
+
uint8_t name_count; // Number of codes in this bucket
119
336
} TzInfo;
120
337
121
338
// Total timezone variants: 60
122
339
static const TzInfo airport_tz_list[] = {
123
-
{ -11.00f, -11.00f, 0LL, 0LL, 0, 3 }, // Pacific/Pago_Pago, Pacific/Midway, Pacific/Niue...
124
-
{ -10.00f, -10.00f, 0LL, 0LL, 3, 7 }, // Pacific/Rarotonga, Pacific/Honolulu, Pacific/Tahiti...
125
-
{ -10.00f, -9.00f, 1741521600LL, 1762081200LL, 10, 1 }, // America/Adak...
126
-
{ -9.50f, -9.50f, 0LL, 0LL, 11, 3 }, // Pacific/Marquesas...
127
-
{ -9.00f, -9.00f, 0LL, 0LL, 14, 1 }, // Pacific/Gambier...
128
-
{ -9.00f, -8.00f, 1741518000LL, 1762077600LL, 15, 1 }, // America/Anchorage...
129
-
{ -8.00f, -7.00f, 1741514400LL, 1762074000LL, 16, 10 }, // America/Vancouver, America/Tijuana, America/Los_Angeles...
130
-
{ -7.00f, -7.00f, 0LL, 0LL, 26, 1 }, // America/Dawson_Creek, America/Mazatlan, America/Hermosillo...
131
-
{ -7.00f, -6.00f, 1741510800LL, 1762070400LL, 27, 6 }, // America/Edmonton, America/Denver, America/Inuvik...
132
-
{ -6.00f, -6.00f, 0LL, 0LL, 33, 1 }, // America/Regina, America/Guatemala, America/Tegucigalpa...
133
-
{ -6.00f, -5.00f, 1741507200LL, 1762066800LL, 34, 9 }, // America/Winnipeg, America/Chicago...
134
-
{ -6.00f, -5.00f, 1757217600LL, 1743908400LL, 43, 1 }, // Pacific/Easter...
135
-
{ -5.00f, -5.00f, 0LL, 0LL, 44, 1 }, // America/Coral_Harbour, America/Jamaica, America/Cancun...
136
-
{ -5.00f, -4.00f, 1741496400LL, 1762059600LL, 45, 1 }, // America/Havana...
137
-
{ -5.00f, -4.00f, 1741503600LL, 1762063200LL, 46, 10 }, // America/Toronto, America/Grand_Turk, America/Port-au-Prince...
138
-
{ -4.00f, -4.00f, 0LL, 0LL, 56, 7 }, // America/Santo_Domingo, America/Campo_Grande, America/Boa_Vista...
139
-
{ -4.00f, -3.00f, 1741500000LL, 1762059600LL, 63, 1 }, // America/Thule, America/Halifax, Atlantic/Bermuda...
140
-
{ -4.00f, -3.00f, 1757217600LL, 1743908400LL, 64, 1 }, // America/Santiago...
141
-
{ -3.50f, -2.50f, 1741496400LL, 1762056000LL, 65, 4 }, // America/St_Johns...
142
-
{ -3.00f, -3.00f, 0LL, 0LL, 69, 10 }, // Atlantic/Stanley, America/Cordoba, America/Buenos_Aires...
143
-
{ -3.00f, -2.00f, 1741496400LL, 1762056000LL, 79, 1 }, // America/Miquelon...
144
-
{ -2.00f, -2.00f, 0LL, 0LL, 80, 1 }, // America/Noronha...
145
-
{ -2.00f, -1.00f, 1743296400LL, 1761440400LL, 81, 1 }, // America/Godthab, America/Scoresbysund...
146
-
{ -1.00f, -1.00f, 0LL, 0LL, 82, 1 }, // Atlantic/Cape_Verde...
147
-
{ -1.00f, 0.00f, 1743296400LL, 1761440400LL, 83, 2 }, // Atlantic/Azores...
148
-
{ 0.00f, 0.00f, 0LL, 0LL, 85, 1 }, // Atlantic/Reykjavik, Africa/Ouagadougou, Africa/Accra...
149
-
{ 0.00f, 1.00f, 1743296400LL, 1761440400LL, 86, 10 }, // Europe/London, Europe/Guernsey, Europe/Jersey...
150
-
{ 1.00f, 1.00f, 0LL, 0LL, 96, 1 }, // Africa/Algiers, Africa/Porto-Novo, Africa/Lagos...
151
-
{ 1.00f, 2.00f, 1743296400LL, 1761440400LL, 97, 10 }, // Europe/Brussels, Europe/Berlin, Europe/Amsterdam...
152
-
{ 2.00f, 2.00f, 0LL, 0LL, 107, 2 }, // Africa/Johannesburg, Africa/Gaborone, Africa/Mbabane...
153
-
{ 2.00f, 3.00f, 1743120000LL, 1761433200LL, 109, 1 }, // Asia/Jerusalem...
154
-
{ 2.00f, 3.00f, 1743285600LL, 1761426000LL, 110, 1 }, // Asia/Beirut...
155
-
{ 2.00f, 3.00f, 1743292800LL, 1761436800LL, 111, 1 }, // Europe/Chisinau...
156
-
{ 2.00f, 3.00f, 1743296400LL, 1761440400LL, 112, 6 }, // Europe/Tallinn, Europe/Helsinki, Europe/Mariehamn...
157
-
{ 2.00f, 3.00f, 1744416000LL, 1761346800LL, 118, 1 }, // Asia/Gaza...
158
-
{ 2.00f, 3.00f, 1745532000LL, 1761858000LL, 119, 1 }, // Africa/Cairo...
159
-
{ 3.00f, 3.00f, 0LL, 0LL, 120, 10 }, // Indian/Comoro, Indian/Mayotte, Indian/Antananarivo...
160
-
{ 3.50f, 3.50f, 0LL, 0LL, 130, 10 }, // Asia/Tehran...
161
-
{ 4.00f, 4.00f, 0LL, 0LL, 140, 10 }, // Indian/Mauritius, Indian/Reunion, Indian/Mahe...
162
-
{ 4.50f, 4.50f, 0LL, 0LL, 150, 3 }, // Asia/Kabul...
163
-
{ 5.00f, 5.00f, 0LL, 0LL, 153, 10 }, // Asia/Karachi, Asia/Qyzylorda, Asia/Oral...
164
-
{ 5.50f, 5.50f, 0LL, 0LL, 163, 10 }, // Asia/Calcutta, Asia/Colombo, Asia/Kolkata...
165
-
{ 5.75f, 5.75f, 0LL, 0LL, 173, 4 }, // Asia/Katmandu...
166
-
{ 6.00f, 6.00f, 0LL, 0LL, 177, 1 }, // Asia/Bishkek, Asia/Omsk, Asia/Dhaka...
167
-
{ 6.50f, 6.50f, 0LL, 0LL, 178, 2 }, // Asia/Rangoon, Indian/Cocos...
168
-
{ 7.00f, 7.00f, 0LL, 0LL, 180, 10 }, // Asia/Krasnoyarsk, Asia/Phnom_Penh, Asia/Vientiane...
169
-
{ 8.00f, 8.00f, 0LL, 0LL, 190, 10 }, // Asia/Taipei, Asia/Manila, Asia/Irkutsk...
170
-
{ 9.00f, 9.00f, 0LL, 0LL, 200, 10 }, // Pacific/Palau, Asia/Tokyo, Asia/Seoul...
171
-
{ 9.50f, 9.50f, 0LL, 0LL, 210, 3 }, // Australia/Darwin...
172
-
{ 9.50f, 10.50f, 1759593600LL, 1743872400LL, 213, 4 }, // Australia/Adelaide...
173
-
{ 10.00f, 10.00f, 0LL, 0LL, 217, 6 }, // Pacific/Port_Moresby, Pacific/Saipan, Pacific/Guam...
174
-
{ 10.00f, 11.00f, 1759593600LL, 1743868800LL, 223, 4 }, // Australia/Hobart, Australia/Sydney, Australia/Melbourne...
175
-
{ 10.50f, 11.00f, 1759593600LL, 1743865200LL, 227, 1 }, // Australia/Lord_Howe...
176
-
{ 11.00f, 11.00f, 0LL, 0LL, 228, 1 }, // Pacific/Efate, Pacific/Noumea, Pacific/Ponape...
177
-
{ 11.00f, 12.00f, 1759590000LL, 1743865200LL, 229, 1 }, // Pacific/Norfolk...
178
-
{ 12.00f, 12.00f, 0LL, 0LL, 230, 2 }, // Pacific/Fiji, Pacific/Tarawa, Pacific/Wallis...
179
-
{ 12.00f, 13.00f, 1758981600LL, 1743861600LL, 232, 8 }, // Pacific/Auckland...
180
-
{ 12.75f, 13.75f, 1758981600LL, 1743861600LL, 240, 1 }, // Pacific/Chatham...
181
-
{ 13.00f, 13.00f, 0LL, 0LL, 241, 3 }, // Pacific/Tongatapu, Pacific/Apia, Pacific/Enderbury...
182
-
{ 14.00f, 14.00f, 0LL, 0LL, 244, 1 }, // Pacific/Kiritimati...
340
+
{ -44, -44, 0, 0, 0, 3 }, // Pacific/Pago_Pago, Pacific/Midway, Pacific/Niue (-11.00h/-11.00h)
341
+
{ -40, -40, 0, 0, 3, 7 }, // Pacific/Rarotonga, Pacific/Honolulu, Pacific/Tahiti (-10.00h/-10.00h)
342
+
{ -40, -36, 1741521600, 1762081200, 10, 1 }, // America/Adak (-10.00h/-9.00h)
343
+
{ -38, -38, 0, 0, 11, 3 }, // Pacific/Marquesas (-9.50h/-9.50h)
344
+
{ -36, -36, 0, 0, 14, 1 }, // Pacific/Gambier (-9.00h/-9.00h)
345
+
{ -36, -32, 1741518000, 1762077600, 15, 1 }, // America/Anchorage (-9.00h/-8.00h)
346
+
{ -32, -28, 1741514400, 1762074000, 16, 10 }, // America/Vancouver, America/Tijuana, America/Los_Angeles (-8.00h/-7.00h)
347
+
{ -28, -28, 0, 0, 26, 1 }, // America/Dawson_Creek, America/Mazatlan, America/Hermosillo (-7.00h/-7.00h)
348
+
{ -28, -24, 1741510800, 1762070400, 27, 6 }, // America/Edmonton, America/Denver, America/Inuvik (-7.00h/-6.00h)
349
+
{ -24, -24, 0, 0, 33, 1 }, // America/Regina, America/Guatemala, America/Tegucigalpa (-6.00h/-6.00h)
350
+
{ -24, -20, 1741507200, 1762066800, 34, 9 }, // America/Winnipeg, America/Chicago (-6.00h/-5.00h)
351
+
{ -24, -20, 1757217600, 1743908400, 43, 1 }, // Pacific/Easter (-6.00h/-5.00h)
352
+
{ -20, -20, 0, 0, 44, 1 }, // America/Coral_Harbour, America/Jamaica, America/Cancun (-5.00h/-5.00h)
353
+
{ -20, -16, 1741496400, 1762059600, 45, 1 }, // America/Havana (-5.00h/-4.00h)
354
+
{ -20, -16, 1741503600, 1762063200, 46, 10 }, // America/Toronto, America/Grand_Turk, America/Port-au-Prince (-5.00h/-4.00h)
355
+
{ -16, -16, 0, 0, 56, 7 }, // America/Santo_Domingo, America/Campo_Grande, America/Boa_Vista (-4.00h/-4.00h)
356
+
{ -16, -12, 1741500000, 1762059600, 63, 1 }, // America/Thule, America/Halifax, Atlantic/Bermuda (-4.00h/-3.00h)
357
+
{ -16, -12, 1757217600, 1743908400, 64, 1 }, // America/Santiago (-4.00h/-3.00h)
358
+
{ -14, -10, 1741496400, 1762056000, 65, 4 }, // America/St_Johns (-3.50h/-2.50h)
359
+
{ -12, -12, 0, 0, 69, 10 }, // Atlantic/Stanley, America/Cordoba, America/Buenos_Aires (-3.00h/-3.00h)
360
+
{ -12, -8, 1741496400, 1762056000, 79, 1 }, // America/Miquelon (-3.00h/-2.00h)
361
+
{ -8, -8, 0, 0, 80, 1 }, // America/Noronha (-2.00h/-2.00h)
362
+
{ -8, -4, 1743296400, 1761440400, 81, 1 }, // America/Godthab, America/Scoresbysund (-2.00h/-1.00h)
363
+
{ -4, -4, 0, 0, 82, 1 }, // Atlantic/Cape_Verde (-1.00h/-1.00h)
364
+
{ -4, 0, 1743296400, 1761440400, 83, 2 }, // Atlantic/Azores (-1.00h/0.00h)
365
+
{ 0, 0, 0, 0, 85, 1 }, // Atlantic/Reykjavik, Africa/Ouagadougou, Africa/Accra (0.00h/0.00h)
366
+
{ 0, 4, 1743296400, 1761440400, 86, 10 }, // Europe/London, Europe/Guernsey, Europe/Jersey (0.00h/1.00h)
367
+
{ 4, 4, 0, 0, 96, 1 }, // Africa/Algiers, Africa/Porto-Novo, Africa/Lagos (1.00h/1.00h)
368
+
{ 4, 8, 1743296400, 1761440400, 97, 10 }, // Europe/Brussels, Europe/Berlin, Europe/Amsterdam (1.00h/2.00h)
369
+
{ 8, 8, 0, 0, 107, 2 }, // Africa/Johannesburg, Africa/Gaborone, Africa/Mbabane (2.00h/2.00h)
370
+
{ 8, 12, 1743120000, 1761433200, 109, 1 }, // Asia/Jerusalem (2.00h/3.00h)
371
+
{ 8, 12, 1743285600, 1761426000, 110, 1 }, // Asia/Beirut (2.00h/3.00h)
372
+
{ 8, 12, 1743292800, 1761436800, 111, 1 }, // Europe/Chisinau (2.00h/3.00h)
373
+
{ 8, 12, 1743296400, 1761440400, 112, 6 }, // Europe/Tallinn, Europe/Helsinki, Europe/Mariehamn (2.00h/3.00h)
374
+
{ 8, 12, 1744416000, 1761346800, 118, 1 }, // Asia/Gaza (2.00h/3.00h)
375
+
{ 8, 12, 1745532000, 1761858000, 119, 1 }, // Africa/Cairo (2.00h/3.00h)
376
+
{ 12, 12, 0, 0, 120, 10 }, // Indian/Comoro, Indian/Mayotte, Indian/Antananarivo (3.00h/3.00h)
377
+
{ 14, 14, 0, 0, 130, 10 }, // Asia/Tehran (3.50h/3.50h)
378
+
{ 16, 16, 0, 0, 140, 10 }, // Indian/Mauritius, Indian/Reunion, Indian/Mahe (4.00h/4.00h)
379
+
{ 18, 18, 0, 0, 150, 3 }, // Asia/Kabul (4.50h/4.50h)
380
+
{ 20, 20, 0, 0, 153, 10 }, // Asia/Karachi, Asia/Qyzylorda, Asia/Oral (5.00h/5.00h)
381
+
{ 22, 22, 0, 0, 163, 10 }, // Asia/Calcutta, Asia/Colombo, Asia/Kolkata (5.50h/5.50h)
382
+
{ 23, 23, 0, 0, 173, 4 }, // Asia/Katmandu (5.75h/5.75h)
383
+
{ 24, 24, 0, 0, 177, 1 }, // Asia/Bishkek, Asia/Omsk, Asia/Dhaka (6.00h/6.00h)
384
+
{ 26, 26, 0, 0, 178, 2 }, // Asia/Rangoon, Indian/Cocos (6.50h/6.50h)
385
+
{ 28, 28, 0, 0, 180, 10 }, // Asia/Krasnoyarsk, Asia/Phnom_Penh, Asia/Vientiane (7.00h/7.00h)
386
+
{ 32, 32, 0, 0, 190, 10 }, // Asia/Taipei, Asia/Manila, Asia/Irkutsk (8.00h/8.00h)
387
+
{ 36, 36, 0, 0, 200, 10 }, // Pacific/Palau, Asia/Tokyo, Asia/Seoul (9.00h/9.00h)
388
+
{ 38, 38, 0, 0, 210, 3 }, // Australia/Darwin (9.50h/9.50h)
389
+
{ 38, 42, 1759593600, 1743872400, 213, 4 }, // Australia/Adelaide (9.50h/10.50h)
390
+
{ 40, 40, 0, 0, 217, 6 }, // Pacific/Port_Moresby, Pacific/Saipan, Pacific/Guam (10.00h/10.00h)
391
+
{ 40, 44, 1759593600, 1743868800, 223, 4 }, // Australia/Hobart, Australia/Sydney, Australia/Melbourne (10.00h/11.00h)
392
+
{ 42, 44, 1759593600, 1743865200, 227, 1 }, // Australia/Lord_Howe (10.50h/11.00h)
393
+
{ 44, 44, 0, 0, 228, 1 }, // Pacific/Efate, Pacific/Noumea, Pacific/Ponape (11.00h/11.00h)
394
+
{ 44, 48, 1759590000, 1743865200, 229, 1 }, // Pacific/Norfolk (11.00h/12.00h)
395
+
{ 48, 48, 0, 0, 230, 2 }, // Pacific/Fiji, Pacific/Tarawa, Pacific/Wallis (12.00h/12.00h)
396
+
{ 48, 52, 1758981600, 1743861600, 232, 8 }, // Pacific/Auckland (12.00h/13.00h)
397
+
{ 51, 55, 1758981600, 1743861600, 240, 1 }, // Pacific/Chatham (12.75h/13.75h)
398
+
{ 52, 52, 0, 0, 241, 3 }, // Pacific/Tongatapu, Pacific/Apia, Pacific/Enderbury (13.00h/13.00h)
399
+
{ 56, 56, 0, 0, 244, 1 }, // Pacific/Kiritimati (14.00h/14.00h)
183
400
};
184
401
185
402
#define AIRPORT_TZ_LIST_COUNT (sizeof(airport_tz_list)/sizeof(airport_tz_list[0]))
+13
-6
src/c/clock_closest_airport_noon.h
+13
-6
src/c/clock_closest_airport_noon.h
···
47
47
#define NAME_POOL airport_name_pool
48
48
#define TZ_LIST airport_tz_list
49
49
#define TZ_LIST_COUNT AIRPORT_TZ_LIST_COUNT
50
+
// Bit-packed IATA code pool (15-bits per entry)
51
+
extern const uint16_t airport_code_pool_bits[];
50
52
#endif
51
53
52
54
#ifdef __cplusplus
···
109
111
for (int i = 0; i < (int)TZ_LIST_COUNT; ++i) {
110
112
const TzInfo *tz = &TZ_LIST[i];
111
113
bool is_dst = _airport_is_dst(tz, (int64_t)current_utc_t);
112
-
float offset_h = is_dst ? tz->dst_offset_hours : tz->std_offset_hours;
114
+
// reconstruct hours from quarter-hour units
115
+
float offset_h = (is_dst ? tz->dst_quarters : tz->std_quarters) * 0.25f;
113
116
long local_secs = (long)utc_secs + (long)(offset_h * 3600.0f);
114
117
local_secs %= DAY_SECONDS;
115
118
if (local_secs < 0) local_secs += DAY_SECONDS;
···
134
137
int idx = best_candidates[(best_count == 1) ? 0 : (rand() % best_count)];
135
138
const TzInfo *tz = &TZ_LIST[idx];
136
139
bool is_dst = _airport_is_dst(tz, (int64_t)current_utc_t);
137
-
s_selected_offset_hours = is_dst ? tz->dst_offset_hours : tz->std_offset_hours;
140
+
// reconstruct float offset from quarter-hour units
141
+
s_selected_offset_hours = (is_dst ? tz->dst_quarters : tz->std_quarters) * 0.25f;
138
142
int cnt = tz->name_count;
139
143
int ni = (cnt == 1) ? 0 : (rand() % cnt);
140
-
memcpy((void *)s_selected_code, CODE_POOL + 3 * (tz->name_offset + ni), 3);
141
-
s_selected_code[3] = '\0'; // Ensure null termination
142
-
int nameIndex = tz->name_offset + ni;
143
-
s_selected_name = _airport_flat_name(NAME_POOL, nameIndex);
144
+
// unpack 3-letter code from bit-packed 15-bit entries
145
+
uint16_t bits = airport_code_pool_bits[tz->name_offset + ni];
146
+
s_selected_code[0] = 'A' + ((bits >> 10) & 0x1F);
147
+
s_selected_code[1] = 'A' + ((bits >> 5) & 0x1F);
148
+
s_selected_code[2] = 'A' + ( bits & 0x1F);
149
+
s_selected_code[3] = '\0';
150
+
s_selected_name = _airport_flat_name(NAME_POOL, tz->name_offset + ni);
144
151
}
145
152
s_last_re_eval_time = current_utc_t;
146
153
}