rust/tests/ui/crashes/mut_mut_macro.rs
2023-06-10 11:13:01 +02:00

34 lines
1.0 KiB
Rust

#![deny(clippy::mut_mut, clippy::zero_ptr)]
#![allow(dead_code)]
// FIXME: compiletest + extern crates doesn't work together. To make this test work, it would need
// the following three lines and the lazy_static crate.
//
// #[macro_use]
// extern crate lazy_static;
// use std::collections::HashMap;
/// ensure that we don't suggest `is_null` inside constants
/// FIXME: once const fn is stable, suggest these functions again in constants
const BAA: *const i32 = 0 as *const i32;
static mut BAR: *const i32 = BAA;
static mut FOO: *const i32 = 0 as *const i32;
#[allow(unused_variables, unused_mut)]
fn main() {
/*
lazy_static! {
static ref MUT_MAP : HashMap<usize, &'static str> = {
let mut m = HashMap::new();
m.insert(0, "zero");
m
};
static ref MUT_COUNT : usize = MUT_MAP.len();
}
assert_eq!(*MUT_COUNT, 1);
*/
// FIXME: don't lint in array length, requires `check_body`
//let _ = [""; (42.0 < f32::NAN) as usize];
}