Support float16 #2667
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Support float16 #2667
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sagudev
commented
Oct 20, 2023
sagudev
commented
Oct 20, 2023
| @@ -0,0 +1,7 @@ | |||
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| static _Float16 global; | |||
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static _Float16 global = 1.0; is not supported
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This PR solves my issue of |
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ping @emilio |
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Tracking issue for rustc support for f16 rust-lang/rust#116909 |
emilio
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Dec 11, 2023
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This is done by defining
pub struct __BindgenFloat16(pub u16);. Clang has half (__fp16; storage type, casted to float for calculations) and float16 (__Float16) types, both have same binary representations, and this PR handles both as same.More about half types here: https://clang.llvm.org/docs/LanguageExtensions.html#half-precision-floating-point.
When rust implements
f16we could use those if appropriate target rust is used.Rust
f16RFC: https://github.com/rust-lang/rfcs/blob/master/text/3453-f16-and-f128.md#f16-type (contains some clang details)Fixes #2500.