Merge "Switch to C++20"

core/jni/Android.bp

@@ -40,6 +40,8 @@ cc_library_shared {
 
     cppflags: ["-Wno-conversion-null"],
 
+    cpp_std: "gnu++20",
+
     srcs: [
         "android_animation_PropertyValuesHolder.cpp",
         "android_os_SystemClock.cpp",

native/android/Android.bp

@@ -34,6 +34,7 @@ ndk_library {
 
 cc_defaults {
     name: "libandroid_defaults",
+    cpp_std: "gnu++20",
     cflags: [
         "-Wall",
         "-Werror",

native/android/system_fonts.cpp

@@ -66,9 +66,6 @@ struct AFont {
         return mFilePath == o.mFilePath && mLocale == o.mLocale && mWeight == o.mWeight &&
                 mItalic == o.mItalic && mCollectionIndex == o.mCollectionIndex && mAxes == o.mAxes;
     }
-
-    AFont() = default;
-    AFont(const AFont&) = default;
 };
 
 struct FontHasher {