Multiplies elements within a vector in arbitrary order. May also be re-associated with unordered additions on the inputs/outputs.

Returns whether we should perform some UB-checking at runtime. This eventually evaluates to `cfg!(ub_checks)`, but behaves different from `cfg!` when mixing crates built with different flags: if the crate has UB checks enabled or carries the `#[rustc_preserve_ub_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.

Does a three-way comparison between the two arguments, which must be of character or integer (signed or unsigned) type.

Like `transmute`, but even less checked at compile-time: rather than giving an error for `size_of::<Src>() != size_of::<Dst>()`, it’s Undefined Behavior at runtime.

Returns the sine of an `f128`.

Tests if `x` is less than `y`, elementwise.

`T` must be a vector of floats.

Tests if `x` is greater than or equal to `y`, elementwise.

Returns the square root of an `f16`

Creates a symbolic link.