mirror of
https://github.com/dlang/dmd.git
synced 2025-04-26 13:10:12 +03:00
15 lines
801 B
Text
15 lines
801 B
Text
For type `bool`, values other than 0 or 1 are not `@safe`
|
|
|
|
The spec [was updated](https://dlang.org/spec/type.html#bool)
|
|
(for 2.109) so that only 0 and 1 are
|
|
[safe values](https://dlang.org/spec/function.html#safe-values)
|
|
for `bool`. This means that reading a `bool` value whose underlying byte representation
|
|
has other bits set is implementation-defined and should be avoided.
|
|
Consequently the following are deprecated in `@safe` code:
|
|
|
|
* initialization of `bool` variables with `= void` (since 2.109)
|
|
* Reading a `bool` field from a union (since 2.109)
|
|
* Runtime casting a dynamic array to a `bool` dynamic array type
|
|
* Runtime casting a `bool` dynamic array to a tail mutable dynamic array type
|
|
* Casting a pointer to a `bool` pointer type
|
|
* Casting a `bool` pointer to a tail mutable pointer type
|