library/portable-simd/crates/core_simd/src/fmt.rs

   1 use crate::simd::{LaneCount, Simd, SimdElement, SupportedLaneCount};
   2 use core::fmt;
   3
   4 macro_rules! impl_fmt_trait {
   5     { $($trait:ident,)* } => {
   6         $(
   7             impl<T, const LANES: usize> fmt::$trait for Simd<T, LANES>
   8             where
   9                 LaneCount<LANES>: SupportedLaneCount,
  10                 T: SimdElement + fmt::$trait,
  11             {
  12                 fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
  13                     #[repr(transparent)]
  14                     struct Wrapper<'a, T: fmt::$trait>(&'a T);
  15
  16                     impl<T: fmt::$trait> fmt::Debug for Wrapper<'_, T> {
  17                         fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
  18                             self.0.fmt(f)
  19                         }
  20                     }
  21
  22                     f.debug_list()
  23                         .entries(self.as_array().iter().map(|x| Wrapper(x)))
  24                         .finish()
  25                 }
  26             }
  27         )*
  28     }
  29 }
  30
  31 impl_fmt_trait! {
  32     Debug,
  33     Binary,
  34     LowerExp,
  35     UpperExp,
  36     Octal,
  37     LowerHex,
  38     UpperHex,
  39 }