(1) | ||
template< class C, class D1, class R2, class P2 > time_point<C, typename std::common_type<D1, duration<R2,P2>>::type> operator+( const time_point<C,D1>& pt, const duration<R2,P2>& d ); | (since C++11) (until C++14) | |
template< class C, class D1, class R2, class P2 > constexpr time_point<C, typename std::common_type<D1, duration<R2,P2>>::type> operator+( const time_point<C,D1>& pt, const duration<R2,P2>& d ); | (since C++14) | |
(2) | ||
template< class R1, class P1, class C, class D2 > time_point<C, typename std::common_type<duration<R1,P1>,D2>::type> operator+( const duration<R1,P1>& d, const time_point<C,D2>& pt ); | (since C++11) (until C++14) | |
template< class R1, class P1, class C, class D2 > constexpr time_point<C, typename std::common_type<duration<R1,P1>,D2>::type> operator+( const duration<R1,P1>& d, const time_point<C,D2>& pt ); | (since C++14) | |
(3) | ||
template< class C, class D1, class R2, class P2 > time_point<C, typename std::common_type<D1, duration<R2,P2>>::type> operator-( const time_point<C,D1>& d, const duration<R2,P2>& pt ); | (since C++11) (until C++14) | |
template< class C, class D1, class R2, class P2 > constexpr time_point<C, typename std::common_type<D1, duration<R2,P2>>::type> operator-( const time_point<C,D1>& d, const duration<R2,P2>& pt ); | (since C++14) | |
(4) | ||
template< class C, class D1, class D2 > typename std::common_type<D1,D2>::type operator-( const time_point<C,D1>& pt_lhs, const time_point<C,D2>& pt_rhs ); | (since C++11) (until C++14) | |
template< class C, class D1, class D2 > constexpr typename std::common_type<D1,D2>::type operator-( const time_point<C,D1>& pt_lhs, const time_point<C,D2>& pt_rhs ); | (since C++14) |
Performs add and subtract operations involving a time_point
.
d
to pt
. Effectively returns CT(pt.time_since_epoch() + d)
, where CT
is the return type.d
to pt
in negative direction. Effectively returns CT(ot.time_since_epoch() - d)
, where CT
is the return type.pt_lhs
and pt_rhs
.pt | - | a time point to apply the offset to |
d | - | a time offset |
pt_lhs, pt_rhs | - | time points to extract difference from |
d
.(none).
The following behavior-changing defect reports were applied retroactively to previously published C++ standards.
DR | Applied to | Behavior as published | Correct behavior |
---|---|---|---|
LWG 2739 | C++11 | pt - d behaved erratically for unsigned duration s | behavior corrected |
modifies the time point by the given duration (public member function) |
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