operator==,!=(std::match_results)
< cpp | regex | match results
Defined in header <regex>
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template< class BidirIt, class Alloc > bool operator==( match_results<BidirIt,Alloc>& lhs, |
(1) | (since C++11) |
template< class BidirIt, class Alloc > bool operator!=( match_results<BidirIt,Alloc>& lhs, |
(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() and rhs.empty(), or
- !lhs.empty() and !rhs.empty() and the following conditions are met:
- lhs.prefix() == rhs.prefix()
- lhs.size() == rhs.size() && 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 LegacyBidirectionalIterator.
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-Alloc must meet the requirements of Allocator.
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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)
Example
This section is incomplete Reason: no example |