Tracking issue for the #![feature(const_float_bits_conv)] feature gate, which makes the following methods on f32 and f64 const fn:

• formerly #![feature(float_bits_conv)]
  • to_bits
  • from_bits
• formerly #![feature(float_to_from_bytes)]
  • to_bytes_be
  • to_bytes_le
  • to_bytes_ne
  • from_bytes_be
  • from_bytes_le
  • from_bytes_ne

These require transmute within a const fn to stabilize, and–unlike the recently stabilized #![feature(const_int_conversion)]–do not have a const-stable alternate implementation. Nevertheless, these may be useful for nightly users.

Stabilization is blocked on #57241.