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12 lines
589 B
Text
12 lines
589 B
Text
`bool` values other than 0 or 1 are not `@safe`
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The spec has been updated so that only 0 and 1 are
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[safe values](https://dlang.org/spec/function.html#safe-values)
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for `bool`. This means that reading a `bool` value whose underlying byte representation
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has other bits set is implementation-defined and should be avoided. Consequently:
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* `void` initialization of booleans is now deprecated in `@safe` code.
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* Reading a `bool` field from a union is now deprecated in `@safe` code.
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Runtime array casting to `bool[]` is
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[yet to be deprecated](https://issues.dlang.org/show_bug.cgi?id=24582).
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