Function core::intrinsics::rintf64

pub unsafe extern "rust-intrinsic" fn rintf64(x: f64) -> f64

🔬 This is a nightly-only experimental API. (core_intrinsics)

intrinsics are unlikely to ever be stabilized, instead they should be used through stabilized interfaces in the rest of the standard library

This is supported on non-crate feature miri-test-libstd or test or doctest only.

Returns the nearest integer to an f64. May raise an inexact floating-point exception if the argument is not an integer.