1 /*
2  * Copyright (C) 2018 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 #include <jni.h>
18 
19 namespace art {
20 namespace Test988MethodTrace {
21 
Java_art_Test988_nativeFibonacci(JNIEnv * env,jclass,jint n)22 extern "C" JNIEXPORT jint JNICALL Java_art_Test988_nativeFibonacci(JNIEnv* env, jclass, jint n) {
23   if (n < 0) {
24     env->ThrowNew(env->FindClass("java/lang/Error"), "bad argument");
25     return -1;
26   } else if (n == 0) {
27     return 0;
28   }
29   jint x = 1;
30   jint y = 1;
31   for (jint i = 3; i <= n; i++) {
32     jint z = x + y;
33     x = y;
34     y = z;
35   }
36   return y;
37 }
38 
39 }  // namespace Test988MethodTrace
40 }  // namespace art
41 
42