only import the needed types

src/header/string/mod.rs

@@ -13,7 +13,10 @@ use cbitset::BitSet256;
 use crate::{
     header::{errno::*, signal},
     iter::{NulTerminated, NulTerminatedInclusive, SrcDstPtrIter},
-    platform::{self, types::*},
+    platform::{
+        self,
+        types::{c_char, c_int, c_void, size_t},
+    },
     raw_cell::RawCell,
 };