Fix mismatched usize/u64 array element type

Author: lucic71

cpp2rust/converter/converter.cpp

@@ -4998,9 +4998,9 @@ std::string Converter::ConvertPlaceholder(clang::Expr *expr, clang::Expr *arg,
   }
 
   if (ph_ctx.declared_in_rule_as_rust_ptr && arg->getType()->isArrayType()) {
-    return std::format(
-        "({} as {})", ConvertFreshPointer(arg),
-        Mapper::GetParamType(ctx_, GetCalleeOrExpr(expr), ph_ctx.arg_idx));
+    auto elem = ctx_.getAsArrayType(arg->getType())->getElementType();
+    return std::format("({} as {})", ConvertFreshPointer(arg),
+                       ToStringBase(ctx_.getPointerType(elem)));
   }
 
   if (ph_ctx.needs_materialization()) {

tests/unit/out/refcount/size_t_ssize_t.rs

@@ -205,7 +205,7 @@ fn main_0() -> i32 {
     let sizes: Value<Box<[usize]>> =
         Rc::new(RefCell::new(Box::new([1_usize, 2_usize, 3_usize, 4_usize])));
     let mut sizes_end: Ptr<usize> =
-        ((sizes.as_pointer() as Ptr<u64>).to_end()).reinterpret_cast::<usize>();
+        ((sizes.as_pointer() as Ptr<usize>).to_end()).reinterpret_cast::<usize>();
     assert!((((sizes_end).clone() - (sizes.as_pointer() as Ptr::<usize>)) as i64 == 4_i64));
     assert!((((sizes_end.offset(-((1) as isize))).read()) == 4_usize));
     return 0;