utils: add Result / Option types

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Add some Rust-style Result/Option types, based on TartanLlama's
expected, optional classes.

There's std::optional of course, but we can't depend on C++17 yet.

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This commit is contained in:

Dirk-Jan C. Binnema

2020-11-09 09:20:54 +02:00

parent 13118ae173

commit 702a1d8452

6 changed files with 4465 additions and 6 deletions

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