Defined in header <regex> | ||
---|---|---|
template< class BidirIt, class Alloc > bool operator==( match_results<BidirIt,Alloc>& lhs, match_results<BidirIt,Alloc>& rhs ); | (1) | (since C++11) |
template< class BidirIt, class Alloc > bool operator!=( match_results<BidirIt,Alloc>& lhs, match_results<BidirIt,Alloc>& rhs ); | (2) | (since C++11) |
Compares two match_results
objects.
Two match_results
are equal if the following conditions are met:
- neither of the objects is ready, or
- both match results are ready and the following conditions are met:
-
lhs.empty()
andrhs.empty()
, or -
!lhs.empty()
and!rhs.empty()
and the following conditions are met:-
lhs.prefix() == rhs.prefix()
-
std::equal(lhs.begin(), lhs.end(), rhs.begin())
-
lhs.suffix() == rhs.suffix()
-
1) Checks if
lhs
and rhs
are equal. 2) Checks if
lhs
and rhs
are not equal.Parameters
lhs, rhs | - | match results to compare |
Type requirements | ||
- BidirIt must meet the requirements of BidirectionalIterator . | ||
- Alloc must meet the requirements of Allocator . |
Return value
1)
true
if lhs
and rhs
are equal, false
otherwise. 2)
true
if lhs
and rhs
are not equal, false
otherwise.Exceptions
(none).
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