fashex 0.0.12

Hexadecimal string encoding and decoding with best-effort SIMD acceleration.
Documentation 
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#[allow(unused_macros, reason = "XXX")]
macro_rules! new {
    ($name:ident, $($feature:tt),+) => {
        mod $name {
            #[cfg(miri)]
            #[inline]
            pub(crate) fn exist() -> bool {
                $(
                    cfg!(target_feature = $feature) &&
                )+ true
            }

            #[cfg(all(
                not(miri),
                feature = "runtime-cpu-detection",
                feature = "std",
                any(target_arch = "x86", target_arch = "x86_64")
            ))]
            #[inline]
            pub(crate) fn exist() -> bool {
                $(
                    ::std::arch::is_x86_feature_detected!($feature) &&
                )+ true
            }

            #[cfg(all(
                not(miri),
                feature = "runtime-cpu-detection",
                feature = "std",
                any(target_arch = "aarch64", target_arch = "arm64ec")
            ))]
            #[inline]
            pub(crate) fn exist() -> bool {
                $(
                    ::std::arch::is_aarch64_feature_detected!($feature) &&
                )+ true
            }

            #[cfg(all(
                not(miri),
                feature = "runtime-cpu-detection",
                feature = "std",
                any(target_arch = "loongarch32", target_arch = "loongarch64")
            ))]
            #[inline]
            pub(crate) fn exist() -> bool {
                $(
                    ::std::arch::is_loongarch_feature_detected!($feature) &&
                )+ true
            }

            #[cfg(all(
                not(miri),
                feature = "runtime-cpu-detection",
                feature = "std",
                not(any(
                    target_arch = "x86",
                    target_arch = "x86_64",
                    target_arch = "aarch64",
                    target_arch = "arm64ec",
                    target_arch = "loongarch32",
                    target_arch = "loongarch64"
                ))
            ))]
            #[inline]
            pub(crate) const fn exist() -> bool {
                $(
                    cfg!(target_feature = $feature) &&
                )+ true
            }

            #[cfg(all(
                not(miri),
                feature = "runtime-cpu-detection",
                not(feature = "std"),
                any(
                    target_arch = "x86",
                    target_arch = "x86_64"
                )
            ))]
            #[inline]
            pub(crate) fn exist() -> bool {
                ::cpufeatures::new!($name, $($feature),+);

                (
                    $(
                        cfg!(target_feature = $feature) &&
                    )+ true
                ) || $name::get()
            }

            #[cfg(all(
                not(miri),
                feature = "runtime-cpu-detection",
                not(feature = "std"),
                not(any(
                    target_arch = "x86",
                    target_arch = "x86_64"
                ))
            ))]
            #[inline]
            pub(crate) const fn exist() -> bool {
                $(
                    cfg!(target_feature = $feature) &&
                )+ true
            }

            #[cfg(all(
                not(miri),
                not(feature = "runtime-cpu-detection")
            ))]
            #[inline]
            pub(crate) const fn exist() -> bool {
                $(
                    cfg!(target_feature = $feature) &&
                )+ true
            }
        }
    };
}

#[allow(unused_imports, reason = "XXX")]
pub(crate) use new;