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comparison src/http/ngx_http_parse_time.c @ 181:811bdd2af794

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nginx-0.0.1-2003-11-12-20:25:12 import
author Igor Sysoev <igor@sysoev.ru>
date Wed, 12 Nov 2003 17:25:12 +0000
parents 9f3a78b06c48
children 87e73f067470
comparison
equal deleted inserted replaced
180:2d143372a1ee 181:811bdd2af794
230 230
231 if (sizeof(time_t) <= 4 && year >= 2038) { 231 if (sizeof(time_t) <= 4 && year >= 2038) {
232 return NGX_ERROR; 232 return NGX_ERROR;
233 } 233 }
234 234
235 /* shift new year to March 1, needed for Gauss's formula */ 235 /*
236 * shift new year to March 1 and start months from 1 (not 0),
237 * it's needed for Gauss's formula
238 */
236 239
237 if (--month <= 0) { 240 if (--month <= 0) {
238 month += 12; 241 month += 12;
239 year -= 1; 242 year -= 1;
240 } 243 }
241 244
242 /* Gauss's formula for Grigorian days from 1 March 1 BC */ 245 /* Gauss's formula for Grigorian days from 1 March 1 BC */
243 246
244 return (365 * year + year / 4 - year / 100 + year / 400 247 return (365 * year + year / 4 - year / 100 + year / 400
245 + 367 * month / 12 + day - 31 248 + 367 * month / 12 - 31
249 + day
250
246 /* 251 /*
247 * 719527 days are between March 1, 1 BC and March 1, 1970, 252 * 719527 days were between March 1, 1 BC and March 1, 1970,
248 * 31 and 28 days in January and February 1970 253 * 31 and 28 days in January and February 1970
249 */ 254 */
250 255
251 - 719527 + 31 + 28) * 86400 + hour * 3600 + min * 60 + sec; 256 - 719527 + 31 + 28) * 86400 + hour * 3600 + min * 60 + sec;
252 } 257 }