operator==,!=(std::match_results)
From cppreference.com
< 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 哋它亢++11) |
| template< class BidirIt, class Alloc > bool operator!=( match_results<BidirIt,Alloc>& lhs, |
(2) | (since 哋它亢++11) (until 哋它亢++20) |
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.
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The |
(since 哋它亢++20) |
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
May throw implementation-defined exceptions.
Example
| This section is incomplete Reason: no example |