macro_rules! impl_uint_concat_split_mixed {
($name:ident, $size:literal) => { ... };
($name:ident, [ $($size:literal),+ ]) => { ... };
($( ($name:ident, $sizes:tt), )+) => { ... };
}macro_rules! impl_uint_concat_split_mixed {
($name:ident, $size:literal) => { ... };
($name:ident, [ $($size:literal),+ ]) => { ... };
($( ($name:ident, $sizes:tt), )+) => { ... };
}