[res] Update resources to c++23

Test: manual
Change-Id: I769e907103cf0dbf1e02b95a78040ebc722c05a9
diff --git a/libs/androidfw/Android.bp b/libs/androidfw/Android.bp
index 63b831d..c8cc3526 100644
--- a/libs/androidfw/Android.bp
+++ b/libs/androidfw/Android.bp
@@ -33,6 +33,7 @@
 
 cc_defaults {
     name: "libandroidfw_defaults",
+    cpp_std: "gnu++2b",
     cflags: [
         "-Werror",
         "-Wunreachable-code",
diff --git a/libs/androidfw/include/androidfw/StringPiece.h b/libs/androidfw/include/androidfw/StringPiece.h
index 921877dc..fac2fa4 100644
--- a/libs/androidfw/include/androidfw/StringPiece.h
+++ b/libs/androidfw/include/androidfw/StringPiece.h
@@ -288,12 +288,12 @@
 
 template <typename TChar>
 inline bool operator==(const ::std::basic_string<TChar>& lhs, const BasicStringPiece<TChar>& rhs) {
-  return rhs == lhs;
+  return BasicStringPiece<TChar>(lhs) == rhs;
 }
 
 template <typename TChar>
 inline bool operator!=(const ::std::basic_string<TChar>& lhs, const BasicStringPiece<TChar>& rhs) {
-  return rhs != lhs;
+  return BasicStringPiece<TChar>(lhs) != rhs;
 }
 
 }  // namespace android