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体验新版 GitCode,发现更多精彩内容 >>
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0bf16ffe
编写于
8月 04, 2015
作者:
M
Manish Goregaokar
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Rollup merge of #27498 - nagisa:eeeeeeh, r=Gankro
r? @Gankro
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6be272cf
c5d87797
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src/libcore/mem.rs
src/libcore/mem.rs
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src/libcore/mem.rs
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0bf16ffe
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@@ -322,20 +322,16 @@ unsafe fn dropped_impl<T>() -> T { intrinsics::init_dropped() }
/// println!("{:?}", &data[0]);
/// ```
///
/// Hopefully this example emphasizes to you exactly how delicate
/// and dangerous doing this is. Note that the `vec!` macro
/// *does* let you initialize every element with a value that
/// is only `Clone`, so the following is equivalent and vastly
/// less dangerous, as long as you can live with an extra heap
/// This example emphasizes exactly how delicate and dangerous doing this is.
/// Note that the `vec!` macro *does* let you initialize every element with a
/// value that is only `Clone`, so the following is semantically equivalent and
/// vastly less dangerous, as long as you can live with an extra heap
/// allocation:
///
/// ```
/// let data: Vec<Vec<u32>> = vec![Vec::new(); 1000];
/// println!("{:?}", &data[0]);
/// ```
///
/// For large arrays this is probably advisable
/// anyway to avoid blowing the stack.
#[inline]
#[stable(feature
=
"rust1"
,
since
=
"1.0.0"
)]
pub
unsafe
fn
uninitialized
<
T
>
()
->
T
{
...
...
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