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Merge pull request #988 from alexcrichton/no-zero-size

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Don't pass 0-length mallocs to system allocator
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Alex Crichton 2018-10-28 12:29:03 -07:00 committed by GitHub
commit efd4dd3ceb
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1 changed files with 7 additions and 3 deletions
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10
src/lib.rs
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@ -827,9 +827,13 @@ pub mod __rt {
let align = mem::align_of::<usize>();
if let Ok(layout) = Layout::from_size_align(size, align) {
unsafe {
let ptr = alloc(layout);
if !ptr.is_null() {
return ptr
if layout.size() > 0 {
let ptr = alloc(layout);
if !ptr.is_null() {
return ptr
}
} else {
return align as *mut u8
}
}
}