try_emplace overloads

Synopses

Declared in <bdlc_flathashtable.h>

If a key equivalent to the specified key already exists in this map, return a pair containing an iterator referring to the existing item, and false. Otherwise, insert into this map a newly‐created ENTRY object, constructed from std::forward<KEY>(key) and the specified args, and return a pair containing an iterator referring to the newly‐created entry and true. This method requires that the (template parameter) types KEY and VALUE are emplace‐constructible from key and args respectively. For C++03, VALUE must also be copy‐constructible.

template<class... ARGS>
bsl::pair<FlatHashTable<KEY, ENTRY, ENTRY_UTIL, HASH, EQUAL>::iterator, bool>
try_emplace(
    BloombergLP::bslmf::MovableRef<KEY> key,
    ARGS&&... args);

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If a key equivalent to the specified key already exists in this map, return a pair containing an iterator referring to the existing item, and false. Otherwise, insert into this map a newly‐created ENTRY object, constructed from key and the specified args, and return a pair containing an iterator referring to the newly‐created entry and true. This method requires that the (template parameter) types KEY and VALUE are emplace‐constructible from key and args respectively. For C++03, VALUE must also be copy‐constructible.

template<class... ARGS>
bsl::pair<FlatHashTable<KEY, ENTRY, ENTRY_UTIL, HASH, EQUAL>::iterator, bool>
try_emplace(
    KEY const& key,
    ARGS&&... args);

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If a key equivalent to the specified key already exists in this map return a pair containing an iterator referring to the existing item, and false. Otherwise, insert into this map a newly‐created ENTRY object, constructed from std::forward<LOOKUP_KEY>(k) and the specified args, and return a pair containing an iterator referring to the newly‐created entry and true. This method requires that the (template parameter) types KEY and VALUE are emplace‐constructible from key and args respectively. For C++03, VALUE must also be copy‐constructible.

template<
    class LOOKUP_KEY,
    class... ARGS>
bsl::pair<iterator, bool>
try_emplace(
    LOOKUP_KEY&& key,
    ARGS&&... args)
requires BloombergLP::bslmf::IsTransparentPredicate<HASH, LOOKUP_KEY>::value
         && BloombergLP::bslmf::IsTransparentPredicate<EQUAL,LOOKUP_KEY>::value;

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