* add some more operator
* adjust some functions to behave properly an invalid values
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@29792 a95241bf-73f2-0310-859d-f6bbb57e9c96
* fix broken Time_t function
* take the missing days into account when adding months
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@29713 a95241bf-73f2-0310-859d-f6bbb57e9c96
* fix _SetTime(), was using the wrong * operator, resulting in
an overflow at some point that lead to the mentioned jumping
fixes 2878 and 3057
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@28524 a95241bf-73f2-0310-859d-f6bbb57e9c96
* added some convenient functions, operator etc...
* reused parts of the patch by Stephen Deken, thanks
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@27954 a95241bf-73f2-0310-859d-f6bbb57e9c96
* more get/ set functions, operators
* date until 1582 are handled in julian calendar
* date above 1582 are handled in gregorian calendar
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@27264 a95241bf-73f2-0310-859d-f6bbb57e9c96