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Are dictionaries on the stack or on the heap? (programming.dev)

submitted 3 months ago by MortySmith@programming.dev to c/swift@programming.dev

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[–] roanutil_@programming.dev 2 points 3 months ago

I can’t look at the source right now, but it’s likely heap. Swift stdlib collections typically use a buffer that is a reference type. The whole ‘copy on write’ thing requires reference types somewhere in the guts (if I remember correctly).

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