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doc: reflect current int → f32 behaviour (#9433)

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Larpon
2021-03-23 10:01:24 +01:00
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@@ -434,9 +434,10 @@ These are the allowed possibilities:
i8 → i16 → int → i64 ⬏ i8 → i16 → int → i64 ⬏
``` ```
An `int` value for example can be automatically promoted to `f64` An `int` value for example can be automatically promoted to `f64`
or `i64` but not to `f32` or `u32`. (`f32` would mean precision or `i64` but not to `u32`. (`u32` would mean loss of the sign for
loss for large values and `u32` would mean loss of the sign for
negative values). negative values).
Promotion from `int` to `f32`, however, is currently done automatically
(but can lead to precision loss for large values).
Literals like `123` or `4.56` are treated in a special way. They do Literals like `123` or `4.56` are treated in a special way. They do
not lead to type promotions, however they default to `int` and `f64` not lead to type promotions, however they default to `int` and `f64`