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macro_rules! impl_hex_fmt {
($id:ident, $elem_ty:ident) => {
impl fmt::LowerHex for $id {
fn fmt(&self, f: &mut fmt::Formatter)
-> fmt::Result {
write!(f, "{}(", stringify!($id))?;
let n = mem::size_of_val(self)
/ mem::size_of::<$elem_ty>();
for i in 0..n {
if i > 0 {
write!(f, ", ")?;
}
self.extract(i).fmt(f)?;
}
write!(f, ")")
}
}
}
}
#[cfg(test)]
macro_rules! test_hex_fmt_impl {
($id:ident, $elem_ty:ident, $($values:expr),+) => {
#[test]
fn hex_fmt() {
use ::std::prelude::v1::*;
use ::coresimd::simd::$id;
for &i in [$($values),+].iter() {
let vec = $id::splat(i as $elem_ty);
let s = format!("{:#x}", vec);
let beg = format!("{}(", stringify!($id));
assert!(s.starts_with(&beg));
assert!(s.ends_with(")"));
let s: Vec<String> = s.replace(&beg, "").replace(")", "").split(",")
.map(|v| v.trim().to_string()).collect();
assert_eq!(s.len(), $id::lanes());
for (index, ss) in s.into_iter().enumerate() {
assert_eq!(ss, format!("{:#x}", vec.extract(index)));
}
}
}
}
}
#[cfg(test)]
macro_rules! test_hex_fmt {
($id:ident, $elem_ty:ident) => {
test_hex_fmt_impl!($id, $elem_ty, 0 as $elem_ty, !(0 as $elem_ty), (1 as $elem_ty));
}
}