Rollup merge of rust-lang#118807 - SUPERCILEX:allo, r=the8472

Remove an allocation in min_stack
GuillaumeGomez · Dec 11, 2023 · 003bb06 · 003bb06
2 parents 551e79d + af8dfde
commit 003bb06
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/library/std/src/sys_common/thread.rs b/library/std/src/sys_common/thread.rs
@@ -8,7 +8,7 @@ pub fn min_stack() -> usize {
         0 => {}
         n => return n - 1,
     }
-    let amt = env::var("RUST_MIN_STACK").ok().and_then(|s| s.parse().ok());
+    let amt = env::var_os("RUST_MIN_STACK").and_then(|s| s.to_str().and_then(|s| s.parse().ok()));
     let amt = amt.unwrap_or(imp::DEFAULT_MIN_STACK_SIZE);
 
     // 0 is our sentinel value, so ensure that we'll never see 0 after