From 1f07123c6cee06b7b2be6a6b2785bdbc2175e956 Mon Sep 17 00:00:00 2001 From: Sergei Pepyakin Date: Tue, 24 Dec 2019 14:16:14 +0100 Subject: [PATCH] Remove unnecessary unsafe. (#4494) --- substrate/primitives/runtime-interface/src/impls.rs | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/substrate/primitives/runtime-interface/src/impls.rs b/substrate/primitives/runtime-interface/src/impls.rs index 681f304b4d..23929e5b17 100644 --- a/substrate/primitives/runtime-interface/src/impls.rs +++ b/substrate/primitives/runtime-interface/src/impls.rs @@ -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) }