mirror of
https://github.com/rust-lang/rust.git
synced 2024-12-04 20:54:13 +00:00
57 lines
1022 B
Rust
57 lines
1022 B
Rust
|
|
|
|
|
|
#![allow(unused)]
|
|
|
|
fn main() {
|
|
mut_range_bound_upper();
|
|
mut_range_bound_lower();
|
|
mut_range_bound_both();
|
|
mut_range_bound_no_mutation();
|
|
immut_range_bound();
|
|
mut_borrow_range_bound();
|
|
immut_borrow_range_bound();
|
|
}
|
|
|
|
fn mut_range_bound_upper() {
|
|
let mut m = 4;
|
|
for i in 0..m { m = 5; } // warning
|
|
}
|
|
|
|
fn mut_range_bound_lower() {
|
|
let mut m = 4;
|
|
for i in m..10 { m *= 2; } // warning
|
|
}
|
|
|
|
fn mut_range_bound_both() {
|
|
let mut m = 4;
|
|
let mut n = 6;
|
|
for i in m..n { m = 5; n = 7; } // warning (1 for each mutated bound)
|
|
}
|
|
|
|
fn mut_range_bound_no_mutation() {
|
|
let mut m = 4;
|
|
for i in 0..m { continue; } // no warning
|
|
}
|
|
|
|
fn mut_borrow_range_bound() {
|
|
let mut m = 4;
|
|
for i in 0..m {
|
|
let n = &mut m; // warning
|
|
*n += 1;
|
|
}
|
|
}
|
|
|
|
fn immut_borrow_range_bound() {
|
|
let mut m = 4;
|
|
for i in 0..m {
|
|
let n = &m; // should be no warning?
|
|
}
|
|
}
|
|
|
|
|
|
fn immut_range_bound() {
|
|
let m = 4;
|
|
for i in 0..m { continue; } // no warning
|
|
}
|