diff options
Diffstat (limited to 'libjava/java/util/natGregorianCalendar.cc')
| -rw-r--r-- | libjava/java/util/natGregorianCalendar.cc | 46 |
1 files changed, 44 insertions, 2 deletions
diff --git a/libjava/java/util/natGregorianCalendar.cc b/libjava/java/util/natGregorianCalendar.cc index 58ee4633954..34b49969b45 100644 --- a/libjava/java/util/natGregorianCalendar.cc +++ b/libjava/java/util/natGregorianCalendar.cc @@ -1,4 +1,4 @@ -/* Copyright (C) 1998, 1999, 2000 Free Software Foundation +/* Copyright (C) 1998, 1999, 2000, 2001 Free Software Foundation This file is part of libgcj. @@ -15,6 +15,7 @@ details. */ #include <gcj/cni.h> #include <java/util/TimeZone.h> #include <java/util/GregorianCalendar.h> +#include <java/lang/IllegalArgumentException.h> #include <time.h> void @@ -27,11 +28,52 @@ java::util::GregorianCalendar::computeTime () tim.tm_mday = elements(fields)[DATE]; tim.tm_mon = elements(fields)[MONTH]; tim.tm_year = elements(fields)[YEAR] - 1900; - tim.tm_isdst = 0; // FIXME + tim.tm_isdst = 0; #ifndef ECOS // FIXME: None of the standard C library access to the ECOS calendar // is yet available. time_t t = mktime (&tim); + + if (!isLenient ()) + { + // mktime will correct for any time leniencies (e.g. 31-Apr becomes + // 1-May). + // Daylight savings time is a special case since times in hour 23 + // will compute to hour 0 of the next day. + if (tim.tm_isdst == 0 || elements(fields)[HOUR_OF_DAY] != 23) + { + if (tim.tm_sec != elements(fields)[SECOND] || + tim.tm_min != elements(fields)[MINUTE] || + tim.tm_hour != elements(fields)[HOUR_OF_DAY] + + (tim.tm_isdst > 0 ? 1 : 0) || + tim.tm_mday != elements(fields)[DATE] || + tim.tm_mon != elements(fields)[MONTH] || + tim.tm_year != elements(fields)[YEAR] - 1900) + throw new java::lang::IllegalArgumentException (); + } + else + { + // The easiest thing to do is to temporarily shift the clock + // back from the 23th hour so mktime doesn't cause the extra + // hour for DST to roll the date to the next day. + struct tm tmp_tim; + tmp_tim.tm_sec = elements(fields)[SECOND]; + tmp_tim.tm_min = elements(fields)[MINUTE]; + tmp_tim.tm_hour = elements(fields)[HOUR_OF_DAY] - 1; + tmp_tim.tm_mday = elements(fields)[DATE]; + tmp_tim.tm_mon = elements(fields)[MONTH]; + tmp_tim.tm_year = elements(fields)[YEAR] - 1900; + tmp_tim.tm_isdst = 0; + mktime (&tmp_tim); + if (tmp_tim.tm_sec != elements(fields)[SECOND] || + tmp_tim.tm_min != elements(fields)[MINUTE] || + tmp_tim.tm_hour != elements(fields)[HOUR_OF_DAY] || + tmp_tim.tm_mday != elements(fields)[DATE] || + tmp_tim.tm_mon != elements(fields)[MONTH] || + tmp_tim.tm_year != elements(fields)[YEAR] - 1900) + throw new java::lang::IllegalArgumentException (); + } + } #else time_t t = 0; #endif |
