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Don’t blindly prefer emplace_back to push_back

(quuxplusone.github.io)
178 points todsacerdoti | 1 comments | 04 Mar 21 08:02 UTC | HN request time: 0.204s | source
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xKingfisher ◴[04 Mar 21 09:27 UTC] No.26340389[source]▶
Not to mention the very real risk of accidently invoking the wrong constructor. If you change the type of a vector, push_back is a good deal safer than emplace_back.

Especially since many of the standard containers have many more constructors that you'd think - hello std::vector(size_type count).

replies(2): >>26340429 #>>26340594 #
1. rq1 ◴[04 Mar 21 09:35 UTC] No.26340429[source]▶
Use Phantom Types. The compiler will help you.