notstd_detect 0.6.0

Fork of std_detect - Rust's standard library run-time CPU feature detection.
Documentation 
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//! Run-time feature detection for PowerPC on FreeBSD.

use super::auxvec;
use crate::detect::{Feature, cache};

pub(crate) fn detect_features() -> cache::Initializer {
    let mut value = cache::Initializer::default();
    let enable_feature = |value: &mut cache::Initializer, f, enable| {
        if enable {
            value.set(f as u32);
        }
    };

    if let Ok(auxv) = auxvec::auxv() {
        enable_feature(&mut value, Feature::altivec, auxv.hwcap & 0x10000000 != 0);
        enable_feature(&mut value, Feature::vsx, auxv.hwcap & 0x00000080 != 0);
        enable_feature(&mut value, Feature::power8, auxv.hwcap2 & 0x80000000 != 0);
        return value;
    }
    value
}