Emplace

For some obscure reasons, even if the emplace operation does not succeed since the key already exists, your arguments passed as a r-value may have been moved anyway. Unlike insert or emplace, these functions do not steal from move-only arguments if the insertion does not happen, which makes it easy to manipulate maps whose values are move-only types, such as std::mapstd::string, std::unique_ptrfoo

2022-12-02
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  1. Insertion takes place only if key is not present already
  2. place Emplace College, Plot 4 Alagbaka, Oba Ile Rd, Akure
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