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| author | frosch <frosch@openttd.org> | 2008-06-20 21:14:10 +0000 |
|---|---|---|
| committer | frosch <frosch@openttd.org> | 2008-06-20 21:14:10 +0000 |
| commit | 4236dd3be5c4c5c130551f625f3459a4c733bfc3 (patch) | |
| tree | 9f0f3597960d1562c26a18b355f4fa2e98db5a01 /src/date_func.h | |
| parent | c406ea35eccd7a7af576ce4d7f2adad2d9a13573 (diff) | |
| download | openttd-4236dd3be5c4c5c130551f625f3459a4c733bfc3.tar.xz | |
(svn r13594) -Feature(ette)[FS#2093]: Supply newgrfs with 'day of month', 'leap year' and 'day of year'.
Diffstat (limited to 'src/date_func.h')
| -rw-r--r-- | src/date_func.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/date_func.h b/src/date_func.h index d196fdb52..8c484b2c4 100644 --- a/src/date_func.h +++ b/src/date_func.h @@ -16,4 +16,9 @@ void SetDate(Date date); void ConvertDateToYMD(Date date, YearMonthDay *ymd); Date ConvertYMDToDate(Year year, Month month, Day day); +static inline bool IsLeapYear(Year yr) +{ + return yr % 4 == 0 && (yr % 100 != 0 || yr % 400 == 0); +} + #endif /* DATE_FUNC_H */ |