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Document That f16 And f128 Hardware Support is Limited #123892

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merged 4 commits into from
May 5, 2024
Merged

Document That f16 And f128 Hardware Support is Limited #123892

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3fd8c64
doc note that f16 and f128 hardware support is limited
ultrabear Apr 13, 2024
e30ad6f
Tgross feedback tweaks
ultrabear Apr 14, 2024
3ef2528
Make f16 and f128 docs clearer on platform support
ultrabear Apr 15, 2024
5aa2f9a
Make f128 docs mention lack of any normal platform support
ultrabear May 4, 2024
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6 changes: 6 additions & 0 deletions library/core/src/primitive_docs.rs
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Expand Up @@ -1082,6 +1082,9 @@ impl<T> (T,) {}
/// bits. Please see [the documentation for [`prim@f32`] or [Wikipedia on
/// half-precision values][wikipedia] for more information.
///
/// Note that not all major platforms have hardware support for f16, in which case a
/// software implementation will be used. This may be slower than expected.
///
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/// *[See also the `std::f16::consts` module](crate::f16::consts).*
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///
/// [wikipedia]: https://en.wikipedia.org/wiki/Half-precision_floating-point_format
Expand Down Expand Up @@ -1181,6 +1184,9 @@ mod prim_f64 {}
/// as many bits as `f64`. Please see [the documentation for [`prim@f32`] or [Wikipedia on
/// quad-precision values][wikipedia] for more information.
///
/// Note that not all major platforms have hardware support for f128, in which case a
/// software implementation will be used. This may be slower than expected.
///
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/// *[See also the `std::f128::consts` module](crate::f128::consts).*
///
/// [wikipedia]: https://en.wikipedia.org/wiki/Quadruple-precision_floating-point_format
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