27 lines
557 B
Rust
27 lines
557 B
Rust
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// Tests that C++ double unwinding through Rust code will be properly guarded
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// against instead of exhibiting undefined behaviour.
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#![feature(c_unwind)]
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extern "C-unwind" {
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fn throw_cxx_exception();
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fn cxx_catch_callback(cb: extern "C-unwind" fn());
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}
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struct ThrowOnDrop;
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impl Drop for ThrowOnDrop {
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fn drop(&mut self) {
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unsafe { throw_cxx_exception() };
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}
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}
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extern "C-unwind" fn test_double_unwind() {
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let _a = ThrowOnDrop;
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let _b = ThrowOnDrop;
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}
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fn main() {
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unsafe { cxx_catch_callback(test_double_unwind) };
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}
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