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trivially implement PassByValue for usize

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This commit is contained in:
Dustin J. Mitchell
2022-02-06 16:26:09 +00:00
parent dadc9473d3
commit b0f7850711
3 changed files with 18 additions and 3 deletions
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5
lib/src/string.rs
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@@ -248,15 +248,14 @@ pub extern "C" fn tc_string_content_with_len(
// - lifetime of tcstring outlives the lifetime of this function
// - lifetime of tcstring outlives the lifetime of the returned pointer (promised by caller)
let tcstring = unsafe { TCString::from_arg_ref(tcstring) };
debug_assert!(!len_out.is_null());
let bytes = tcstring.as_bytes();
// SAFETY:
// - len_out is not NULL (checked by assertion, promised by caller)
// - len_out is not NULL (promised by caller)
// - len_out points to valid memory (promised by caller)
// - len_out is properly aligned (C convention)
unsafe { *len_out = bytes.len() };
unsafe { bytes.len().to_arg_out(len_out) };
bytes.as_ptr() as *const libc::c_char
}