Annotation of parser3/src/types/pa_vdate.C, revision 1.11
1.1 moko 1: /** @file
2: Parser: @b date parser class.
3:
4: Copyright (c) 2001-2012 Art. Lebedev Studio (http://www.artlebedev.com)
5: */
6:
7: #include "pa_vstateless_object.h"
8: #include "pa_vdate.h"
9: #include "pa_vint.h"
10: #include "pa_vstring.h"
11:
1.11 ! moko 12: volatile const char * IDENT_PA_PA_VDATE_C="$Id: pa_vdate.C,v 1.10 2015/09/22 23:35:30 moko Exp $" IDENT_PA_VDATE_H;
1.1 moko 13:
1.4 moko 14: #define ZERO_DATE (-62169984000ll-SECS_PER_DAY) // '0000-00-00 00:00:00' - 1 day
15: #define MAX_DATE (253402300799ll+SECS_PER_DAY) // '9999-12-31 23:59:59' + 1 day
1.3 moko 16:
17: static const int DAYS_IN_MONTH[12] =
18: {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
19:
20: static const int DAYS_BEFORE_MONTH[12] =
21: {0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334};
22:
23: #define IS_LEAP(y) (((y) % 4) == 0 && (((y) % 100) != 0 || (((y)+1900) % 400) == 0))
24:
25: int VDate::getMonthDays(int year, int month) {
26: return (month == 1 /* january -- 0 */ && IS_LEAP(year)) ? 29 : DAYS_IN_MONTH[month];
27: }
28:
29: static void pa_gmtime(pa_time_t lcltime, struct tm *res);
30: static pa_time_t pa_mktime(struct tm *tim_p);
31:
32: static int gmt_offset() {
33: #if defined(HAVE_TIMEZONE)
34: tzset();
1.6 moko 35: return -timezone;
1.3 moko 36: #else
37: time_t t=time(0);
38: tm *tm=localtime(&t);
39: #if defined(HAVE_TM_GMTOFF)
1.6 moko 40: return tm->tm_gmtoff;
1.3 moko 41: #elif defined(HAVE_TM_TZADJ)
1.6 moko 42: return -tm->tm_tzadj;
1.3 moko 43: #else
44: #error neither HAVE_TIMEZONE nor HAVE_TM_GMTOFF nor HAVE_TM_TZADJ defined
45: #endif
46: #endif
47: }
48:
49: static void pa_set_tz(const char* ntz) {
50: if(ntz && *ntz){
51: static char temp_tz_pair[MAX_STRING];
52: snprintf(temp_tz_pair, sizeof(temp_tz_pair), "TZ=%s", ntz);
53: putenv(temp_tz_pair);
54: } else {
1.1 moko 55: #ifdef HAVE_UNSETENV
1.3 moko 56: unsetenv("TZ");
1.1 moko 57: #else
1.3 moko 58: putenv("TZ=");
1.1 moko 59: #endif
1.3 moko 60: }
1.9 moko 61: tzset(); // required in Windows
1.1 moko 62: }
63:
1.3 moko 64: /// Auto-object used for temporarily substituting/removing timezone variable
65: class Temp_tz {
66: const char* ntz;
67: char saved_tz[MAX_STRING];
68: public:
69: static const char *default_tz;
70: public:
71: Temp_tz(const char *atz) : ntz(atz) {
72: if(!ntz)
73: ntz=default_tz;
74: if(!ntz)
75: return;
76: if(const char* ctz=getenv("TZ")){
77: strncpy(saved_tz, ctz, sizeof(saved_tz)-1);
78: } else
79: saved_tz[0]=0;
80: pa_set_tz(ntz);
81: }
82: ~Temp_tz() {
83: if(ntz)
84: pa_set_tz(saved_tz);
85: }
86: };
87:
88: const char *Temp_tz::default_tz=0;
1.1 moko 89:
1.8 moko 90: static void pa_localtime(const char *tz, pa_time_t atime, struct tm &tmIn) {
1.3 moko 91: Temp_tz temp_tz(tz);
92: #ifdef PA_DATE64
93: tmIn=*localtime(&atime);
94: #else
1.11 ! moko 95: if(atime >= 0 && atime <= INT_MAX){
1.5 moko 96: time_t itime=(time_t)atime;
1.3 moko 97: tmIn=*localtime(&itime);
98: } else {
1.6 moko 99: pa_gmtime(atime+gmt_offset(), &tmIn);
1.3 moko 100: }
101: #endif
1.1 moko 102: }
103:
1.3 moko 104: static pa_time_t pa_mktime(const char *tz, struct tm &tmIn) {
105: Temp_tz temp_tz(tz);
106: #ifdef PA_DATE64
107: return mktime(&tmIn);
108: #else
109: time_t result=mktime(&tmIn);
110: if(result != -1)
1.10 moko 111: return (pa_time_t)result;
1.6 moko 112: return pa_mktime(&tmIn)-gmt_offset();
1.3 moko 113: #endif
1.1 moko 114: }
115:
1.3 moko 116: const String* VDate::get_sql_string(sql_string_type format) {
117: switch(format){
118: case sql_string_datetime:{
119: static const char *format="%.4d-%.2d-%.2d %.2d:%.2d:%.2d";
120: static int size=4+1+2+1+2 +1+ 2+1+2+1+2 +1/*zero-teminator*/+1/*for faulty snprintfs*/;
121: char *buf=new(PointerFreeGC) char[size];
122: snprintf(buf, size, format, ftm.tm_year+1900, ftm.tm_mon+1, ftm.tm_mday, ftm.tm_hour, ftm.tm_min, ftm.tm_sec);
123: return new String(buf);
124: }
125: case sql_string_date:{
126: static const char *format="%.4d-%.2d-%.2d";
127: static int size=4+1+2+1+2 +1/*zero-teminator*/+1/*for faulty snprintfs*/;
128: char *buf=new(PointerFreeGC) char[size];
129: snprintf(buf, size, format, ftm.tm_year+1900, ftm.tm_mon+1, ftm.tm_mday);
130: return new String(buf);
131: }
132: case sql_string_time:{
133: static const char *format="%.2d:%.2d:%.2d";
134: static int size=2+1+2+1+2 +1/*zero-teminator*/+1/*for faulty snprintfs*/;
135: char *buf=new(PointerFreeGC) char[size];
136: snprintf(buf, size, format, ftm.tm_hour, ftm.tm_min, ftm.tm_sec);
137: return new String(buf);
138: }
1.1 moko 139: }
1.3 moko 140: }
141:
142:
143: const String* VDate::get_gmt_string() {
1.6 moko 144: struct tm gtm;
1.3 moko 145: #ifdef PA_DATE64
1.6 moko 146: gtm=*gmtime(&ftime);
1.3 moko 147: #else
1.6 moko 148: pa_gmtime(ftime, >m);
1.3 moko 149: #endif
150: /// http://www.w3.org/Protocols/rfc2616/rfc2616-sec3.html#sec3.3
151: static const char month_names[12][4]={"Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec"};
152: static const char days[7][4]={"Sun","Mon","Tue","Wed","Thu","Fri","Sat"};
1.1 moko 153:
1.6 moko 154: static const char *format="%s, %.2d %s %.4d %.2d:%.2d:%.2d GMT";
1.3 moko 155: static int size=3+1+1+2+1+3+1+4+1+2+1+2+1+2+4 +1/*zero-teminator*/+1/*for faulty snprintfs*/;
156: char *buf=new(PointerFreeGC) char[size];
1.6 moko 157: snprintf(buf, size, format, days[gtm.tm_wday], gtm.tm_mday, month_names[gtm.tm_mon], gtm.tm_year+1900, gtm.tm_hour, gtm.tm_min, gtm.tm_sec);
1.3 moko 158: return new String(buf);
1.1 moko 159: }
160:
1.6 moko 161: const String* VDate::get_iso_string() {
162: Temp_tz temp_tz(ftz_cstr);
163: /// http://www.w3.org/TR/NOTE-datetime
164: if(int offset=gmt_offset()){
165: char sign=offset>0 ? '+':'-';
166: offset=abs(offset);
167: static const char *format="%.4d-%.2d-%.2dT%.2d:%.2d:%.2d%c%d:%.2d";
168: static int size=4+1+2+1+2 +1+ 2+1+2+1+2 +1+2+1+2 +1/*zero-teminator*/+1/*for faulty snprintfs*/;
169: char *buf=new(PointerFreeGC) char[size];
170: snprintf(buf, size, format, ftm.tm_year+1900, ftm.tm_mon+1, ftm.tm_mday, ftm.tm_hour, ftm.tm_min, ftm.tm_sec,
171: sign, offset/3600, (offset/60)%60);
172: return new String(buf);
173: } else {
174: static const char *format="%.4d-%.2d-%.2dT%.2d:%.2d:%.2dZ";
175: static int size=4+1+2+1+2 +1+ 2+1+2+1+2 +1 +1/*zero-teminator*/+1/*for faulty snprintfs*/;
176: char *buf=new(PointerFreeGC) char[size];
177: snprintf(buf, size, format, ftm.tm_year+1900, ftm.tm_mon+1, ftm.tm_mday, ftm.tm_hour, ftm.tm_min, ftm.tm_sec);
178: return new String(buf);
179: }
180: }
181:
1.1 moko 182: override Value* VDate::get_element(const String& aname) {
183: // $method
184: if(Value* result=VStateless_object::get_element(aname))
185: return result;
186:
187: // $TZ
1.3 moko 188: if(aname=="TZ")
189: return ftz_cstr ? new VString(*new String(ftz_cstr)): new VString();
1.1 moko 190:
191: int result;
1.3 moko 192: if(aname=="year") result=1900+ftm.tm_year;
193: else if(aname=="month") result=1+ftm.tm_mon;
194: else if(aname=="day") result=ftm.tm_mday;
195: else if(aname=="hour") result=ftm.tm_hour;
196: else if(aname=="minute") result=ftm.tm_min;
197: else if(aname=="second") result=ftm.tm_sec;
198: else if(aname=="weekday") result=ftm.tm_wday;
199: else if(aname=="yearday") result=ftm.tm_yday;
200: else if(aname=="daylightsaving") result=ftm.tm_isdst;
1.1 moko 201: else if(aname=="week") {
1.3 moko 202: yw week = CalcWeek(ftm);
1.1 moko 203: result=week.week;
204: }
205: else if(aname=="weekyear") {
1.3 moko 206: yw week = CalcWeek(ftm);
1.1 moko 207: result=1900+week.year;
208: } else { return bark("%s field not found", &aname); }
209: return new VInt(result);
210: }
211:
212: const String* VDate::get_json_string(Json_options& options) {
213: String* result=new String();
214: switch(options.date){
215: case Json_options::D_SQL:
216: result->append_quoted(get_sql_string());
217: break;
218: case Json_options::D_GMT:
219: result->append_quoted(get_gmt_string());
220: break;
1.6 moko 221: case Json_options::D_ISO:
222: result->append_quoted(get_iso_string());
223: break;
1.1 moko 224: case Json_options::D_TIMESTAMP:
225: *result << format((int)ftime, 0);
226: break;
227: }
228: return result;
229: }
1.2 moko 230:
1.3 moko 231: void VDate::validate() {
232: if((ftm.tm_year==-1901) && (ftm.tm_mon==10) && (ftm.tm_mday==30)){
233: ftm.tm_year=-1900;
234: ftm.tm_mon=-1;
235: ftm.tm_mday=0;
236: }
237: if((ftm.tm_year+1900)<0 || (ftm.tm_year+1900)>9999){
238: throw Exception(DATE_RANGE_EXCEPTION_TYPE, 0, "year '%d' is out of range 0..9999", ftm.tm_year+1900);
239: }
240: }
241:
242: void VDate::set_time(pa_time_t atime) {
1.2 moko 243: if(atime==-1)
244: throw Exception(DATE_RANGE_EXCEPTION_TYPE, 0, "invalid datetime");
1.3 moko 245: if(atime<ZERO_DATE || atime>MAX_DATE)
246: throw Exception(DATE_RANGE_EXCEPTION_TYPE, 0, "unix time %.15g is out of range 0..9999 year", (double)atime);
1.2 moko 247: ftime=atime;
1.3 moko 248: pa_localtime(ftz_cstr, ftime, ftm);
249: validate();
250: }
251:
252: void VDate::set_tm(tm &tmIn) {
1.4 moko 253: pa_time_t atime=pa_mktime(ftz_cstr, tmIn);
254: if(atime==-1)
255: throw Exception(DATE_RANGE_EXCEPTION_TYPE, 0, "invalid datetime '%04d-%02d-%02d'", tmIn.tm_year+1900, tmIn.tm_mon+1, tmIn.tm_mday);
256: ftime=atime;
1.3 moko 257: ftm=tmIn;
258: validate();
1.2 moko 259: }
260:
1.6 moko 261: void VDate::set_tz(const char* atz) {
262: ftz_cstr=atz && atz[0] ? atz : 0; // ftm should be updated afterwards
1.3 moko 263: }
264:
1.6 moko 265: void VDate::set_default_tz(const char* atz) {
266: Temp_tz::default_tz=atz && atz[0] ? atz : 0;
1.2 moko 267: }
268:
269: static int ISOWeekCount (int year) {
270: static const unsigned int YearWeeks[] = {
271: 52,52,52,52,53, 52,52,52,52,52,
272: 53,52,52,52,52, 52,53,52,52,52,
273: 52,53,52,52,52, 52,52,53
274: };
275: return YearWeeks[(year+1900) % 28];
276: }
277:
278: VDate::yw VDate::CalcWeek(tm& tms) {
279: yw week = {tms.tm_year, 0};
280:
281: // http://www.merlyn.demon.co.uk/weekinfo.htm
282: static const unsigned int FirstThurs[] = {7,5,4,3,2,7,6,5,4,2,1,7,6,4,3,2,1,6,5,4,3,1,7,6,5,3,2,1};
283: int diff = tms.tm_yday-(FirstThurs[(tms.tm_year+1900) % 28]-4);
284: if (diff < 0){
285: tms.tm_mday = diff;
1.3 moko 286: pa_mktime(0, tms); // normalize
1.2 moko 287: week = CalcWeek(tms);
288: } else {
289: week.week = 1 + diff/7;
290: if ( week.week > 52 && ISOWeekCount(week.year) < week.week ){
291: week.year++;
292: week.week = 1;
293: }
294: }
295: return week;
296: }
1.3 moko 297:
298: #ifndef PA_DATE64
299:
300: /*
301: * gmtime_r.c
302: * Original Author: Adapted from tzcode maintained by Arthur David Olson.
303: * Modifications:
304: * - Changed to mktm_r and added __tzcalc_limits - 04/10/02, Jeff Johnston
305: * - Fixed bug in mday computations - 08/12/04, Alex Mogilnikov <alx@intellectronika.ru>
306: * - Fixed bug in __tzcalc_limits - 08/12/04, Alex Mogilnikov <alx@intellectronika.ru>
307: * - Move code from _mktm_r() to gmtime_r() - 05/09/14, Freddie Chopin <freddie_chopin@op.pl>
308: * - Fixed bug in calculations for dates after year 2069 or before year 1901. Ideas for
309: * solution taken from musl's __secs_to_tm() - 07/12/2014, Freddie Chopin
310: * <freddie_chopin@op.pl>
311: * - Use faster algorithm from civil_from_days() by Howard Hinnant - 12/06/2014,
312: * Freddie Chopin <freddie_chopin@op.pl>
313: *
314: * Converts the calendar time pointed to by tim_p into a broken-down time
315: * expressed as local time. Returns a pointer to a structure containing the
316: * broken-down time.
317: */
318:
319: /* Move epoch from 01.01.1970 to 01.03.0000 (yes, Year 0) - this is the first
320: * day of a 400-year long "era", right after additional day of leap year.
321: * This adjustment is required only for date calculation, so instead of
322: * modifying time_t value (which would require 64-bit operations to work
323: * correctly) it's enough to adjust the calculated number of days since epoch.
324: */
325:
326: #define SECS_PER_HOUR 3600
327: #define SECS_PER_MIN 60
328: #define DAYS_PER_WEEK 7
329: #define YEAR_BASE 1900
330:
331: #define EPOCH_ADJUSTMENT_DAYS 719468L
332: /* year to which the adjustment was made */
333: #define ADJUSTED_EPOCH_YEAR 0
334: /* 1st March of year 0 is Wednesday */
335: #define ADJUSTED_EPOCH_WDAY 3
336: /* there are 97 leap years in 400-year periods. ((400 - 97) * 365 + 97 * 366) */
337: #define DAYS_PER_ERA 146097L
338: /* there are 24 leap years in 100-year periods. ((100 - 24) * 365 + 24 * 366) */
339: #define DAYS_PER_CENTURY 36524L
340: /* there is one leap year every 4 years */
341: #define DAYS_PER_4_YEARS (3 * 365 + 366)
342: /* number of days in a non-leap year */
343: #define DAYS_PER_YEAR 365
344: /* number of days in January */
345: #define DAYS_IN_JANUARY 31
346: /* number of days in non-leap February */
347: #define DAYS_IN_FEBRUARY 28
348: /* number of years per era */
349: #define YEARS_PER_ERA 400
350:
351: static void pa_gmtime(pa_time_t lcltime, struct tm *res) {
352: long days, rem;
353: int era, weekday, year;
354: unsigned erayear, yearday, month, day;
355: unsigned long eraday;
356:
1.5 moko 357: days = (long)(lcltime / SECS_PER_DAY);
358: rem = (long)(lcltime - (pa_time_t)days * SECS_PER_DAY);
1.3 moko 359: days += EPOCH_ADJUSTMENT_DAYS;
360: if (rem < 0)
361: {
362: rem += SECS_PER_DAY;
363: --days;
364: }
365:
366: /* compute hour, min, and sec */
367: res->tm_hour = (int) (rem / SECS_PER_HOUR);
368: rem %= SECS_PER_HOUR;
369: res->tm_min = (int) (rem / SECS_PER_MIN);
370: res->tm_sec = (int) (rem % SECS_PER_MIN);
371:
372: /* compute day of week */
373: if ((weekday = ((ADJUSTED_EPOCH_WDAY + days) % DAYS_PER_WEEK)) < 0)
374: weekday += DAYS_PER_WEEK;
375: res->tm_wday = weekday;
376:
377: /* compute year, month, day & day of year */
378: /* for description of this algorithm see
379: * http://howardhinnant.github.io/date_algorithms.html#civil_from_days */
380: era = (days >= 0 ? days : days - (DAYS_PER_ERA - 1)) / DAYS_PER_ERA;
381: eraday = days - era * DAYS_PER_ERA; /* [0, 146096] */
382: erayear = (eraday - eraday / (DAYS_PER_4_YEARS - 1) + eraday / DAYS_PER_CENTURY -
383: eraday / (DAYS_PER_ERA - 1)) / 365; /* [0, 399] */
384: yearday = eraday - (DAYS_PER_YEAR * erayear + erayear / 4 - erayear / 100); /* [0, 365] */
385: month = (5 * yearday + 2) / 153; /* [0, 11] */
386: day = yearday - (153 * month + 2) / 5 + 1; /* [1, 31] */
387: month += month < 10 ? 2 : -10;
388: year = ADJUSTED_EPOCH_YEAR + erayear + era * YEARS_PER_ERA + (month <= 1);
389:
390: res->tm_yday = yearday >= DAYS_PER_YEAR - DAYS_IN_JANUARY - DAYS_IN_FEBRUARY ?
391: yearday - (DAYS_PER_YEAR - DAYS_IN_JANUARY - DAYS_IN_FEBRUARY) :
392: yearday + DAYS_IN_JANUARY + DAYS_IN_FEBRUARY + IS_LEAP(erayear);
393: res->tm_year = year - YEAR_BASE;
394: res->tm_mon = month;
395: res->tm_mday = day;
396:
397: res->tm_isdst = 0;
398: }
399:
400:
401: /*
402: * mktime.c
403: * Original Author: G. Haley
404: *
405: * Converts the broken-down time, expressed as local time, in the structure
406: * pointed to by tim_p into a calendar time value. The original values of the
407: * tm_wday and tm_yday fields of the structure are ignored, and the original
408: * values of the other fields have no restrictions. On successful completion
409: * the fields of the structure are set to represent the specified calendar
410: * time. Returns the specified calendar time. If the calendar time can not be
411: * represented, returns the value (time_t) -1.
412: */
413:
414: #define _DAYS_IN_MONTH(x) ((x == 1) ? days_in_feb : DAYS_IN_MONTH[x])
415: #define _DAYS_IN_YEAR(year) (IS_LEAP(year) ? 366 : 365)
416:
417: static void validate_structure(struct tm *tim_p) {
418: div_t res;
419: int days_in_feb = 28;
420:
421: /* calculate time & date to account for out of range values */
422: if (tim_p->tm_sec < 0 || tim_p->tm_sec > 59)
423: {
424: res = div (tim_p->tm_sec, 60);
425: tim_p->tm_min += res.quot;
426: if ((tim_p->tm_sec = res.rem) < 0)
427: {
428: tim_p->tm_sec += 60;
429: --tim_p->tm_min;
430: }
431: }
432:
433: if (tim_p->tm_min < 0 || tim_p->tm_min > 59)
434: {
435: res = div (tim_p->tm_min, 60);
436: tim_p->tm_hour += res.quot;
437: if ((tim_p->tm_min = res.rem) < 0)
438: {
439: tim_p->tm_min += 60;
440: --tim_p->tm_hour;
441: }
442: }
443:
444: if (tim_p->tm_hour < 0 || tim_p->tm_hour > 23)
445: {
446: res = div (tim_p->tm_hour, 24);
447: tim_p->tm_mday += res.quot;
448: if ((tim_p->tm_hour = res.rem) < 0)
449: {
450: tim_p->tm_hour += 24;
451: --tim_p->tm_mday;
452: }
453: }
454:
455: if (tim_p->tm_mon < 0 || tim_p->tm_mon > 11)
456: {
457: res = div (tim_p->tm_mon, 12);
458: tim_p->tm_year += res.quot;
459: if ((tim_p->tm_mon = res.rem) < 0)
460: {
461: tim_p->tm_mon += 12;
462: --tim_p->tm_year;
463: }
464: }
465:
466: if (_DAYS_IN_YEAR (tim_p->tm_year) == 366)
467: days_in_feb = 29;
468:
469: if (tim_p->tm_mday <= 0)
470: {
471: while (tim_p->tm_mday <= 0)
472: {
473: if (--tim_p->tm_mon == -1)
474: {
475: tim_p->tm_year--;
476: tim_p->tm_mon = 11;
477: days_in_feb =
478: ((_DAYS_IN_YEAR (tim_p->tm_year) == 366) ?
479: 29 : 28);
480: }
481: tim_p->tm_mday += _DAYS_IN_MONTH (tim_p->tm_mon);
482: }
483: }
484: else
485: {
486: while (tim_p->tm_mday > _DAYS_IN_MONTH (tim_p->tm_mon))
487: {
488: tim_p->tm_mday -= _DAYS_IN_MONTH (tim_p->tm_mon);
489: if (++tim_p->tm_mon == 12)
490: {
491: tim_p->tm_year++;
492: tim_p->tm_mon = 0;
493: days_in_feb =
494: ((_DAYS_IN_YEAR (tim_p->tm_year) == 366) ?
495: 29 : 28);
496: }
497: }
498: }
499: }
500:
501: static pa_time_t pa_mktime(struct tm *tim_p) {
502: pa_time_t tim = 0;
503: long days = 0;
504: int year;
505:
506: /* validate structure */
507: validate_structure (tim_p);
508:
509: /* compute hours, minutes, seconds */
510: tim += tim_p->tm_sec + (tim_p->tm_min * SECS_PER_MIN) +
511: (tim_p->tm_hour * SECS_PER_HOUR);
512:
513: /* compute days in year */
514: days += tim_p->tm_mday - 1;
515: days += DAYS_BEFORE_MONTH[tim_p->tm_mon];
516: if (tim_p->tm_mon > 1 && _DAYS_IN_YEAR (tim_p->tm_year) == 366)
517: days++;
518:
519: /* compute day of the year */
520: tim_p->tm_yday = days;
521:
522: if (tim_p->tm_year > 10000 || tim_p->tm_year < -10000)
523: return (time_t) -1;
524:
525: /* compute days in other years */
526: if ((year = tim_p->tm_year) > 70)
527: {
528: for (year = 70; year < tim_p->tm_year; year++)
529: days += _DAYS_IN_YEAR (year);
530: }
531: else if (year < 70)
532: {
533: for (year = 69; year > tim_p->tm_year; year--)
534: days -= _DAYS_IN_YEAR (year);
535: days -= _DAYS_IN_YEAR (year);
536: }
537:
538: /* compute total seconds */
539: tim += (pa_time_t)days * SECS_PER_DAY;
540:
541: /* compute day of the week */
542: if ((tim_p->tm_wday = (days + 4) % 7) < 0)
543: tim_p->tm_wday += 7;
544:
545: return tim;
546: }
547:
548: #endif
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