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c++boostbimapboost-bimap
Bing Lan
Bing Lan

Reputation: 1131

Boost bimap find with multiset_of

I have question with Boost::bimap and could not find answer from boost document.

using AToBBimap = boost::bimap< boost::bimaps::unordered_set_of<CString>, boost::bimaps::multiset_of<CString> >; //hashed bimap
using AToBBimapValueT = AToBBimap ::value_type;

AToBBimap bi_map;
bi_map.insert(AToBBimapValueT{"message1", "value"});
bi_map.insert(AToBBimapValueT{"message2", "value"});

bi_map.right.find("value");

QUESTION: with bi_map.right.find("value") looks like can only get iterator to {"message1", "value"}, is there possible to get a list of both matching like [{"message1", "value"}, {"message2", "value"}]?

Upvotes: 1

Views: 429

Answers (1)

Bing Lan
Bing Lan

Reputation: 1131

The answer is equal_range("value"), like with std::multiset and std::multimap.

That member returns a pair of iterators, which is conveniently compatible with Boost's iterator-range factory, so you can use it:

for (auto p : boost::make_iterator_range(bi_map.right.equal_range("value")))
        do something with p.second;

Upvotes: 3

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