You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: rintf32.rs
    path of file: ./repos/kani/tests/kani/Intrinsics/Math/Rounding/RInt
    
    the code of the file until where you have to start completion: // Copyright Kani Contributors
// SPDX-License-Identifier: Apache-2.0 OR MIT

// Checks that `rintf32` returns the nearest integer to the argument. The
// default rounding mode is rounding half to even, which is described here:
// https://en.wikipedia.org/wiki/Rounding#Round_half_to_even
//
// `rintf32` works like `nearbyintf32`, but it may raise an inexact
// floating-point exception which isn't supported in Rust:
// https://github.com/rust-lang/rust/issues/10186
// So in practice, `rintf32` and `nearbyintf32` work the same way.
#![feature(core_intrinsics)]
use std::intrinsics::rintf32;

#[kani::proof]
fn test_one() {
    let one = 1.0;
    let result = unsafe { rintf32(one) 
    
fn test_towards_nearest() {
    let x: f32 = kani::any();
    kani::assume(!x.is_nan());
    kani::assume(!x.is_infinite());
    let result = unsafe { rintf32(x) };
    let frac = x.fract().abs();
    if x.is_sign_positive() {
        if frac > 0.5 {
            assert!(result > x);
        } else if frac < 0.5 {
            assert!(result <= x);
        } else {
            // This would fail if conversion checks were on
            let integer = x as i64;
            if integer % 2 == 0 {
                assert!(result < x);
            } else {
                assert!(result > x);
            }
        }
    } else {
        if frac > 0.5 {
            assert!(result < x);
        } else if frac < 0.5 {
            assert!(result >= x);
        } else {
            // This would fail if conversion checks were on
            let integer = x as i64;
            if integer % 2 == 0 {
                assert!(result > x);
            } else {
                assert!(result < x);
            }
        }
    }
}