import org.checkerframework.common.value.qual.*;

public class TransferDivide {

    void test() {
        int a = -1;
        int b = 0;
        int c = 1;
        int d = 2;

        /** literals */
        @IntRange(from = 1) int e = -1 / -1;

        /** 0 / * -> NN */
        @IntRange(from = 0) int f = 0 / a;
        @IntRange(from = 0) int g = 0 / d;

        /** * / 1 -> * */
        @IntRange(from = -1) int h = a / 1;
        @IntRange(from = 0) int i = b / 1;
        @IntRange(from = 1) int j = c / 1;
        @IntRange(from = 1) int k = d / 1;

        /** pos / pos -> nn */
        @IntRange(from = 0) int l = d / c;
        @IntRange(from = 0) int m = c / d;
        // :: error: (assignment.type.incompatible)
        @IntRange(from = 1) int n = c / d;

        /** nn / pos -> nn */
        @IntRange(from = 0) int o = b / c;
        // :: error: (assignment.type.incompatible)
        @IntRange(from = 1) int p = b / d;

        /** pos / nn -> nn */
        @IntRange(from = 0) int q = d / l;
        // :: error: (assignment.type.incompatible)
        @IntRange(from = 1) int r = c / l;

        /** nn / nn -> nn */
        @IntRange(from = 0) int s = b / q;
        // :: error: (assignment.type.incompatible)
        @IntRange(from = 1) int t = b / q;

        /** n1p / pos -> n1p */
        @IntRange(from = -1) int u = a / d;
        @IntRange(from = -1) int v = a / c;
        // :: error: (assignment.type.incompatible)
        @IntRange(from = 0) int w = a / c;

        /** n1p / nn -> n1p */
        @IntRange(from = -1) int x = a / l;
    }

    void testDivideByTwo(@IntRange(from = 0) int x) {
        @IntRange(from = 0) int y = x / 2;
    }
}
