mirror of
https://github.com/rust-lang/rust.git
synced 2024-11-27 09:14:20 +00:00
72800d3b89
Except for `simd-intrinsic/`, which has a lot of files containing multiple types like `u8x64` which really are better when hand-formatted. There is a surprising amount of two-space indenting in this directory. Non-trivial changes: - `rustfmt::skip` needed in `debug-column.rs` to preserve meaning of the test. - `rustfmt::skip` used in a few places where hand-formatting read more nicely: `enum/enum-match.rs` - Line number adjustments needed for the expected output of `debug-column.rs` and `coroutine-debug.rs`.
33 lines
733 B
Rust
33 lines
733 B
Rust
#![crate_type = "lib"]
|
|
|
|
//@ compile-flags: -O
|
|
|
|
use std::slice::Windows;
|
|
|
|
// CHECK-LABEL: @naive_string_search
|
|
#[no_mangle]
|
|
pub fn naive_string_search(haystack: &str, needle: &str) -> Option<usize> {
|
|
if needle.is_empty() {
|
|
return Some(0);
|
|
}
|
|
// CHECK-NOT: panic
|
|
// CHECK-NOT: fail
|
|
haystack.as_bytes().windows(needle.len()).position(|sub| sub == needle.as_bytes())
|
|
}
|
|
|
|
// CHECK-LABEL: @next
|
|
#[no_mangle]
|
|
pub fn next<'a>(w: &mut Windows<'a, u32>) -> Option<&'a [u32]> {
|
|
// CHECK-NOT: panic
|
|
// CHECK-NOT: fail
|
|
w.next()
|
|
}
|
|
|
|
// CHECK-LABEL: @next_back
|
|
#[no_mangle]
|
|
pub fn next_back<'a>(w: &mut Windows<'a, u32>) -> Option<&'a [u32]> {
|
|
// CHECK-NOT: panic
|
|
// CHECK-NOT: fail
|
|
w.next_back()
|
|
}
|