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Remove unnecessary unsafe. (#4494)

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This commit is contained in:
Sergei Pepyakin
2019-12-24 14:16:14 +01:00
committed by Bastian Köcher
parent 1782fbbbba
commit 1f07123c6c
1 changed files with 2 additions and 2 deletions
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substrate/primitives/runtime-interface/src/impls.rs
+2 -2
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@@ -301,7 +301,7 @@ macro_rules! impl_traits_for_arrays {
#[cfg(not(feature = "std"))]
impl FromFFIValue for [u8; $n] {
fn from_ffi_value(arg: u32) -> [u8; $n] {
let mut res = unsafe { mem::MaybeUninit::<[u8; $n]>::zeroed().assume_init() };
let mut res = [0u8; $n];
res.copy_from_slice(unsafe { slice::from_raw_parts(arg as *const u8, $n) });
// Make sure we free the pointer.
@@ -317,7 +317,7 @@ macro_rules! impl_traits_for_arrays {
fn from_ffi_value(context: &mut dyn FunctionContext, arg: u32) -> Result<[u8; $n]> {
let data = context.read_memory(Pointer::new(arg), $n)?;
let mut res = unsafe { mem::MaybeUninit::<[u8; $n]>::zeroed().assume_init() };
let mut res = [0u8; $n];
res.copy_from_slice(&data);
Ok(res)
}