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      1 /*
      2  * Copyright (C) 2008 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 /*
     18  * java.lang.String
     19  */
     20 #include "Dalvik.h"
     21 #include "native/InternalNativePriv.h"
     22 
     23 
     24 /*
     25  * public String intern()
     26  *
     27  * Intern a string in the VM string table.
     28  */
     29 static void Dalvik_java_lang_String_intern(const u4* args, JValue* pResult)
     30 {
     31     StringObject* str = (StringObject*) args[0];
     32     StringObject* interned;
     33 
     34     interned = dvmLookupInternedString(str);
     35     RETURN_PTR(interned);
     36 }
     37 
     38 const DalvikNativeMethod dvm_java_lang_String[] = {
     39     { "intern",             "()Ljava/lang/String;",
     40         Dalvik_java_lang_String_intern },
     41     { NULL, NULL, NULL },
     42 };
     43