61 lines
1.4 KiB
Rust
61 lines
1.4 KiB
Rust
#![warn(clippy::manual_c_str_literals)]
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#![allow(clippy::no_effect)]
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use std::ffi::CStr;
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macro_rules! cstr {
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($s:literal) => {
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CStr::from_bytes_with_nul(concat!($s, "\0").as_bytes()).unwrap()
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};
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}
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macro_rules! macro_returns_c_str {
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() => {
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CStr::from_bytes_with_nul(b"foo\0").unwrap();
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};
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}
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macro_rules! macro_returns_byte_string {
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() => {
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b"foo\0"
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};
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}
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#[clippy::msrv = "1.76.0"]
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fn pre_stabilization() {
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CStr::from_bytes_with_nul(b"foo\0");
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}
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#[clippy::msrv = "1.77.0"]
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fn post_stabilization() {
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c"foo";
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}
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fn main() {
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c"foo";
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c"foo";
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c"foo";
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c"foo\\0sdsd";
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CStr::from_bytes_with_nul(br"foo\\0sdsd\0").unwrap();
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CStr::from_bytes_with_nul(br"foo\x00").unwrap();
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CStr::from_bytes_with_nul(br##"foo#a\0"##).unwrap();
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unsafe { c"foo" };
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unsafe { c"foo" };
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let _: *const _ = c"foo".as_ptr();
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let _: *const _ = c"foo".as_ptr();
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let _: *const _ = "foo".as_ptr(); // not a C-string
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let _: *const _ = "".as_ptr();
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let _: *const _ = c"foo".as_ptr().cast::<i8>();
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let _ = "电脑".as_ptr();
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let _ = "电脑\\".as_ptr();
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let _ = c"电脑\\".as_ptr();
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let _ = c"电脑".as_ptr();
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let _ = c"电脑".as_ptr();
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// Macro cases, don't lint:
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cstr!("foo");
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macro_returns_c_str!();
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CStr::from_bytes_with_nul(macro_returns_byte_string!()).unwrap();
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}
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