Rollup merge of #138034 - thaliaarchi:use-prelude-size-of, r=tgross35

library: Use `size_of` from the prelude instead of imported

Use `std::mem::{size_of, size_of_val, align_of, align_of_val}` from the prelude instead of importing or qualifying them.

These functions were added to all preludes in Rust 1.80.

try-job: test-various
try-job: x86_64-gnu
try-job: x86_64-msvc-1

1 files changed, 3 insertions, 3 deletions

diff --git a/library/core/src/num/mod.rs b/library/core/src/num/mod.rs
index 80a38a6013d..151e128cd78 100644
--- a/library/core/src/num/mod.rs
+++ b/library/core/src/num/mod.rs
@@ -1241,7 +1241,7 @@ impl usize {
     /// Returns an `usize` where every byte is equal to `x`.
     #[inline]
     pub(crate) const fn repeat_u8(x: u8) -> usize {
-        usize::from_ne_bytes([x; mem::size_of::<usize>()])
+        usize::from_ne_bytes([x; size_of::<usize>()])
     }
 
     /// Returns an `usize` where every byte pair is equal to `x`.
@@ -1249,7 +1249,7 @@ impl usize {
     pub(crate) const fn repeat_u16(x: u16) -> usize {
         let mut r = 0usize;
         let mut i = 0;
-        while i < mem::size_of::<usize>() {
+        while i < size_of::<usize>() {
             // Use `wrapping_shl` to make it work on targets with 16-bit `usize`
             r = r.wrapping_shl(16) | (x as usize);
             i += 2;
@@ -1330,7 +1330,7 @@ pub enum FpCategory {
 #[inline(always)]
 #[unstable(issue = "none", feature = "std_internals")]
 pub const fn can_not_overflow<T>(radix: u32, is_signed_ty: bool, digits: &[u8]) -> bool {
-    radix <= 16 && digits.len() <= mem::size_of::<T>() * 2 - is_signed_ty as usize
+    radix <= 16 && digits.len() <= size_of::<T>() * 2 - is_signed_ty as usize
 }
 
 #[cfg_attr(not(feature = "panic_immediate_abort"), inline(never))]