20 lines
525 B
Rust
20 lines
525 B
Rust
//@ check-pass
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#![deny(dangling_pointers_from_temporaries)]
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// The original code example comes from bindgen-produced code for emacs.
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// Hence the name of the test.
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// https://github.com/rust-lang/rust/pull/128985#issuecomment-2338951363
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use std::ffi::{c_char, CString};
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fn read(ptr: *const c_char) -> c_char {
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unsafe { ptr.read() }
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}
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fn main() {
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let fnptr: Option<fn(ptr: *const c_char) -> c_char> = Some(read);
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let x = fnptr.unwrap()(CString::new("foo").unwrap().as_ptr());
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assert_eq!(x as u8, b'f');
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}
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