If the union is untagged, how can it be determined (at runtime) that you've acce... | Hacker News

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		abbeyj on April 16, 2022 \| parent \| context \| favorite \| on: Zig self hosted compiler is now capable of buildin... If the union is untagged, how can it be determined (at runtime) that you've accessed the wrong field?

Spex_guy on April 16, 2022 [–]

The compiler adds a tag in debug modes, but not in release modes.

a_t48 on April 17, 2022 | [–]

Neat, that's somewhere in between a `union` and a `std::variant`. You could build your own, but it's cool that it's a first class member of the language.

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