Use c_char in unsafe

Author: lucic71

cpp2rust/converter/converter.cpp

@@ -1977,7 +1977,7 @@ bool Converter::VisitStringLiteral(clang::StringLiteral *expr) {
     if (auto *arr_ty = ctx_.getAsConstantArrayType(curr_init_type_.back())) {
       uint64_t arr_size = arr_ty->getSize().getZExtValue();
       if (expr->getString().empty()) {
-        StrCat(std::format("[0 as {}; {}]", CharRustType(), arr_size));
+        StrCat(std::format("[0 as libc::c_char; {}]", arr_size));
         return false;
       }
       uint64_t pad = arr_size > expr->getString().size()

cpp2rust/converter/models/converter_refcount.cpp

@@ -2238,7 +2238,7 @@ void ConverterRefCount::ConvertFunctionMain(
     StrCat(std::format(R"(
 pub fn main() {{
     let argv: Vec<Value<Vec<u8>>> = ::std::env::args()
-        .map(|x| Rc::new(RefCell::new(x.bytes().collect())))
+        .map(|x| Rc::new(RefCell::new(x.as_bytes().to_vec())))
         .collect();
     let mut argv: Value<Vec<Ptr<u8>>> = Rc::new(RefCell::new(
         argv.iter().map(|x| {{ x.borrow_mut().push(0); x.as_pointer() }}).collect(),