mirror of
https://github.com/rust-lang/rust
synced 2024-07-20 18:05:58 +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"]
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//@ compile-flags: -O
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use std::slice::Windows;
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// CHECK-LABEL: @naive_string_search
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#[no_mangle]
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pub fn naive_string_search(haystack: &str, needle: &str) -> Option<usize> {
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if needle.is_empty() {
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return Some(0);
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}
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// CHECK-NOT: panic
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// CHECK-NOT: fail
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haystack.as_bytes().windows(needle.len()).position(|sub| sub == needle.as_bytes())
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}
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// CHECK-LABEL: @next
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#[no_mangle]
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pub fn next<'a>(w: &mut Windows<'a, u32>) -> Option<&'a [u32]> {
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// CHECK-NOT: panic
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// CHECK-NOT: fail
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w.next()
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}
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// CHECK-LABEL: @next_back
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#[no_mangle]
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pub fn next_back<'a>(w: &mut Windows<'a, u32>) -> Option<&'a [u32]> {
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// CHECK-NOT: panic
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// CHECK-NOT: fail
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w.next_back()
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}
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