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Handle nullptr char* in Rust

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topjohnwu
2023-01-20 03:45:16 +08:00
parent 67845f9c21
commit 3517e6d752
1 changed files with 5 additions and 1 deletions
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6
native/src/base/misc.rs
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@ -108,7 +108,11 @@ macro_rules! cstr {
}
pub fn ptr_to_str<'a, T>(ptr: *const T) -> &'a str {
unsafe { CStr::from_ptr(ptr.cast()) }.to_str().unwrap_or("")
if ptr.is_null() {
"(null)"
} else {
unsafe { CStr::from_ptr(ptr.cast()) }.to_str().unwrap_or("")
}
}
pub fn errno() -> &'static mut i32 {