26 lines
834 B
Rust
26 lines
834 B
Rust
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//@ run-fail
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//@ compile-flags: -Copt-level=3 -Cdebug-assertions=no -Zub-checks=yes
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//@ error-pattern: unsafe precondition(s) violated: ptr::copy_nonoverlapping requires
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//@ revisions: null_src null_dst misaligned_src misaligned_dst overlapping
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use std::ptr;
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fn main() {
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let src = [0u16; 3];
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let mut dst = [0u16; 3];
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let src = src.as_ptr();
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let dst = dst.as_mut_ptr();
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unsafe {
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#[cfg(null_src)]
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ptr::copy_nonoverlapping(ptr::null(), dst, 1);
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#[cfg(null_dst)]
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ptr::copy_nonoverlapping(src, ptr::null_mut(), 1);
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#[cfg(misaligned_src)]
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ptr::copy_nonoverlapping(src.byte_add(1), dst, 1);
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#[cfg(misaligned_dst)]
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ptr::copy_nonoverlapping(src, dst.byte_add(1), 1);
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#[cfg(overlapping)]
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ptr::copy_nonoverlapping(dst, dst.add(1), 2);
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}
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}
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