From b21a125d25eaaa04ba43a9d4d6d8388c5ec3e720 Mon Sep 17 00:00:00 2001
From: Alexander Batischev <eual.jp@gmail.com>
Date: Sat, 24 Dec 2022 20:04:11 +0300
Subject: Fix unnecessary cast (Clippy warning)

---
 rust/regex-rs/src/lib.rs | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

(limited to 'rust/regex-rs/src/lib.rs')

diff --git a/rust/regex-rs/src/lib.rs b/rust/regex-rs/src/lib.rs
index f6e30edd..50ca9cfe 100644
--- a/rust/regex-rs/src/lib.rs
+++ b/rust/regex-rs/src/lib.rs
@@ -117,9 +117,7 @@ unsafe fn regex_error_to_str(errcode: libc::c_int, regex: &regex_t) -> Option<St
     let errmsg_length = regerror(errcode, regex, ptr::null_mut(), 0);
 
     // Allocate the buffer and get the message.
-    // Casting u64 to usize is safe since the error message is unlikely to hit usize's
-    // upper bound.
-    let mut errmsg: Vec<u8> = vec![0; errmsg_length as usize];
+    let mut errmsg: Vec<u8> = vec![0; errmsg_length];
     // Casting `*mut u8` to `*mut c_char` should be safe since C doesn't really care:
     // it can store any ASCII symbol in a `char`, disregarding signedness.
     regerror(
-- 
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