I face strange behavior of do/while statement on Galaxy S5 and Android 5.1.1. If you have any information, let me know.
int i = 0;
int j = 0;
do {
Log.d(TAG, "[test do-while 1] i = " + i + ", j = " + j);
i = 0;
Log.d(TAG, "[test do-while 2] i = " + i + ", j = " + j);
i++;
Log.d(TAG, "[test do-while 3] i = " + i + ", j = " + j);
i++;
Log.d(TAG, "[test do-while 4] i = " + i + ", j = " + j);
j++;
Log.d(TAG, "[test do-while 5] i = " + i + ", j = " + j);
} while (j < 5);
If I will run the program on Galaxy S5 with Android 5.1.1, output log is as follows.
D/MainActivity( 9856): [test do-while 1] i = 2, j = 0
D/MainActivity( 9856): [test do-while 2] i = 2, j = 0
D/MainActivity( 9856): [test do-while 3] i = 2, j = 0
D/MainActivity( 9856): [test do-while 4] i = 2, j = 0
D/MainActivity( 9856): [test do-while 5] i = 2, j = 1
D/MainActivity( 9856): [test do-while 1] i = 2, j = 1
D/MainActivity( 9856): [test do-while 2] i = 2, j = 1
D/MainActivity( 9856): [test do-while 3] i = 2, j = 1
D/MainActivity( 9856): [test do-while 4] i = 2, j = 1
D/MainActivity( 9856): [test do-while 5] i = 2, j = 2
D/MainActivity( 9856): [test do-while 1] i = 2, j = 2
D/MainActivity( 9856): [test do-while 2] i = 2, j = 2
D/MainActivity( 9856): [test do-while 3] i = 2, j = 2
D/MainActivity( 9856): [test do-while 4] i = 2, j = 2
D/MainActivity( 9856): [test do-while 5] i = 2, j = 3
D/MainActivity( 9856): [test do-while 1] i = 2, j = 3
D/MainActivity( 9856): [test do-while 2] i = 2, j = 3
D/MainActivity( 9856): [test do-while 3] i = 2, j = 3
D/MainActivity( 9856): [test do-while 4] i = 2, j = 3
D/MainActivity( 9856): [test do-while 5] i = 2, j = 4
D/MainActivity( 9856): [test do-while 1] i = 2, j = 4
D/MainActivity( 9856): [test do-while 2] i = 2, j = 4
D/MainActivity( 9856): [test do-while 3] i = 2, j = 4
D/MainActivity( 9856): [test do-while 4] i = 2, j = 4
D/MainActivity( 9856): [test do-while 5] i = 2, j = 5
If I will run the same program on other device or other o/s version, output is as follows.
D/MainActivity( 9515): [test do-while 1] i = 0, j = 0
D/MainActivity( 9515): [test do-while 2] i = 0, j = 0
D/MainActivity( 9515): [test do-while 3] i = 1, j = 0
D/MainActivity( 9515): [test do-while 4] i = 2, j = 0
D/MainActivity( 9515): [test do-while 5] i = 2, j = 1
D/MainActivity( 9515): [test do-while 1] i = 2, j = 1
D/MainActivity( 9515): [test do-while 2] i = 0, j = 1
D/MainActivity( 9515): [test do-while 3] i = 1, j = 1
D/MainActivity( 9515): [test do-while 4] i = 2, j = 1
D/MainActivity( 9515): [test do-while 5] i = 2, j = 2
D/MainActivity( 9515): [test do-while 1] i = 2, j = 2
D/MainActivity( 9515): [test do-while 2] i = 0, j = 2
D/MainActivity( 9515): [test do-while 3] i = 1, j = 2
D/MainActivity( 9515): [test do-while 4] i = 2, j = 2
D/MainActivity( 9515): [test do-while 5] i = 2, j = 3
D/MainActivity( 9515): [test do-while 1] i = 2, j = 3
D/MainActivity( 9515): [test do-while 2] i = 0, j = 3
D/MainActivity( 9515): [test do-while 3] i = 1, j = 3
D/MainActivity( 9515): [test do-while 4] i = 2, j = 3
D/MainActivity( 9515): [test do-while 5] i = 2, j = 4
D/MainActivity( 9515): [test do-while 1] i = 2, j = 4
D/MainActivity( 9515): [test do-while 2] i = 0, j = 4
D/MainActivity( 9515): [test do-while 3] i = 1, j = 4
D/MainActivity( 9515): [test do-while 4] i = 2, j = 4
D/MainActivity( 9515): [test do-while 5] i = 2, j = 5
- If we convert the code to while or for statement, the issue does not occur.
- If we make a own log library with sync file i/o, the issue occur.
- Does not occur on Galaxy S4 and S6 or Android 5.0.2.