diff options
Diffstat (limited to 'include/tools/datetime.hxx')
| -rw-r--r-- | include/tools/datetime.hxx | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/include/tools/datetime.hxx b/include/tools/datetime.hxx index 21cb65921d27..17d2f89a80b6 100644 --- a/include/tools/datetime.hxx +++ b/include/tools/datetime.hxx @@ -101,9 +101,14 @@ public: { return operator+( rDateTime, -fTimeInDays ); } TOOLS_DLLPUBLIC friend DateTime operator +( const DateTime& rDateTime, const tools::Time& rTime ); TOOLS_DLLPUBLIC friend DateTime operator -( const DateTime& rDateTime, const tools::Time& rTime ); - TOOLS_DLLPUBLIC friend double operator -( const DateTime& rDateTime1, const DateTime& rDateTime2 ); - /** Same as friend operator-() to be able to disable operator-() to find - places where tools::Duration could be used instead. */ + /** Use operator-() if a duration is to be remembered or processed. */ + TOOLS_DLLPUBLIC friend tools::Duration operator -( const DateTime& rDateTime1, const DateTime& rDateTime2 ); + /** Use Sub() if the floating point "time in days" value is to be + processed. This also takes a shortcut for whole days values (equal + times), and only for times inflicted values uses an intermediary + tools::Duration for conversion. Note that the resulting floating point + value neverthless in many cases is not an exact representation down to + nanoseconds. */ static double Sub( const DateTime& rDateTime1, const DateTime& rDateTime2 ); TOOLS_DLLPUBLIC friend sal_Int64 operator -( const DateTime& rDateTime, const Date& rDate ) { return static_cast<const Date&>(rDateTime) - rDate; } |