An unwind action that continues unwinding.

Returns the base 2 logarithm of an `f32`.

Returns the base 10 logarithm of an `f128`.

Returns the maximum of two `f16` values, ignoring NaN.

Returns the maximum of two `f32` values, ignoring NaN.

Float subtraction that allows optimizations based on algebraic rules. Requires that inputs and output of the operation are finite, causing UB otherwise.

Raises an `f16` to an `f16` power.

Raises an `f128` to an `f128` power.

API documentation for the Rust `Return` fn in crate `std`.

Returns whether we should perform some overflow-checking at runtime. This eventually evaluates to `cfg!(overflow_checks)`, but behaves different from `cfg!` when mixing crates built with different flags: if the crate has overflow checks enabled or carries the `#[rustc_inherit_overflow_checks]` attribute, evaluation is delayed until monomorphization (or until the call gets inlined into a crate that does not delay evaluation further); otherwise it can happen any time.