Discarded (popped) expressions can cause "not a statement" if not consumed into ignored locals.

FILE (no copyright materials): o_test.zip

CFR:

public static String fib(String a) {
    int n = a.length();
    int n2 = n - 1;
    char[] arrc = new char[n];
    int n3 = (3 ^ 5) << 4 ^ 1;
    (3 ^ 5) << 3 ^ (3 ^ 5);
    int n4 = n2;
    int n5 = (2 ^ 5) << 3 ^ 2;
    while (n4 >= 0) {
        int n6 = n2--;
        arrc[n6] = (char)(a.charAt(n6) ^ n5);
        if (n2 < 0) break;
        int n7 = n2--;
        arrc[n7] = (char)(a.charAt(n7) ^ n3);
        n4 = n2;
    }
    return new String(arrc);
}

Fernflower:

public static String fib(String a) {
    int var10000 = (2 ^ 5) << 3 ^ 2;
    int var10001 = (3 ^ 5) << 3 ^ 3 ^ 5;
    int var10002 = (3 ^ 5) << 4 ^ 1;
    int var10003 = a.length();
    char[] var10004 = new char[var10003];
    boolean var10006 = true;
    int var5 = var10003 - 1;
    var10003 = var10002;
    int var3;
    var10002 = var3 = var5;
    char[] var1 = var10004;
    int var4 = var10003;
    var10001 = var10000;
    var10000 = var10002;

    for(int var2 = var10001; var10000 >= 0; var10000 = var3) {
        var10001 = var3;
        char var6 = a.charAt(var3);
        --var3;
        var1[var10001] = (char)(var6 ^ var2);
        if (var3 < 0) {
            break;
        }

        var10002 = var3--;
        var1[var10002] = (char)(a.charAt(var10002) ^ var4);
    }

    return new String(var1);
}

Optimizations are ok, but that line with the mathematical operation looks weird.😃

[lab313ru]

It would be great to comment it or even don’t show any such info. It doesn’t give you any interesting info, but in case of trying to compile it will give you an error.

[lab313ru]

Thanks:) Ok, you’re right.