ICU-21174 Add adopt*() to MemoryPool and MaybeStackVector

Also add more const-correctness, including getConstAlias().

diff --git a/icu4c/source/common/cmemory.h b/icu4c/source/common/cmemory.h
index dccbcee9c0e663f223a0b63322858ade75bbc47d..e628e344b214497363bb2f9872ce2ac54096f53b 100644 (file)
--- a/icu4c/source/common/cmemory.h
+++ b/icu4c/source/common/cmemory.h
@@ -742,8 +742,8 @@ public:
      * @param status Is set to U_MEMORY_ALLOCATION_ERROR if allocation of the
      * needed pool capacity fails.
      */
-    template<typename... Args>
-    void adoptBack(T* ptr, UErrorCode& status) {
+    template <typename... Args>
+    void adopt(T *ptr, UErrorCode &status) {
         if (U_FAILURE(status)) {
             return;
         }
@@ -821,7 +821,7 @@ public:
      * needed pool capacity fails.
      */
     void adoptBack(T *ptr, UErrorCode &status) {
-        MemoryPool<T, stackCapacity>::adoptBack(ptr, status);
+        this->adopt(ptr, status);
     }
 
     int32_t length() const {