/*

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 */

/*

 * @test

 * @bug 6860973

 * @summary Project Coin: Underscores in literals

 */

public class UnderscoreLiterals {

    public static void main(String... args) throws Exception {

        new UnderscoreLiterals().run();

    }

    public void run() throws Exception {

        // decimal

        test(1, 1);

        test(10, 10);

        test(1_0, 10);

        test(1__0, 10);

        test(1_0_0, 100);

        test(1__0__0, 100);

        test(123_456_789, 123456789);

        // long

        test(1l, 1l);

        test(10l, 10l);

        test(1_0l, 10l);

        test(1__0l, 10l);

        test(1_0_0l, 100l);

        test(1__0__0l, 100l);

        test(123_456_789l, 123456789l);

        // float

        test(.1f, .1f);

        test(.10f, .10f);

        test(.1_0f, .10f);

        test(.1__0f, .10f);

        test(.1_0_0f, .100f);

        test(.1__0__0f, .100f);

        test(1e1, 1e1);

        test(1e10, 1e10);

        test(1e1_0, 1e10);

        test(1e1__0, 1e10);

        test(1e1_0_0, 1e100);

        test(1e1__0__0, 1e100);

        test(.123_456_789f, .123456789f);

        test(0.1f, 0.1f);

        test(0.10f, 0.10f);

        test(0.1_0f, 0.10f);

        test(0.1__0f, 0.10f);

        test(0.1_0_0f, 0.100f);

        test(0.1__0__0f, 0.100f);

        test(0.123_456_789f, 0.123456789f);

        test(1_1.1f, 1_1.1f);

        test(1_1.10f, 1_1.10f);

        test(1_1.1_0f, 1_1.10f);

        test(1_1.1__0f, 1_1.10f);

        test(1_1.1_0_0f, 1_1.100f);

        test(1_1.1__0__0f, 1_1.100f);

        test(1_1.123_456_789f, 1_1.123456789f);

        // double

        test(.1d, .1d);

        test(.10d, .10d);

        test(.1_0d, .10d);

        test(.1__0d, .10d);

        test(.1_0_0d, .100d);

        test(.1__0__0d, .100d);

        test(1e1, 1e1);

        test(1e10, 1e10);

        test(1e1_0, 1e10);

        test(1e1__0, 1e10);

        test(1e1_0_0, 1e100);

        test(1e1__0__0, 1e100);

        test(.123_456_789d, .123456789d);

        test(0.1d, 0.1d);

        test(0.10d, 0.10d);

        test(0.1_0d, 0.10d);

        test(0.1__0d, 0.10d);

        test(0.1_0_0d, 0.100d);

        test(0.1__0__0d, 0.100d);

        test(0.123_456_789d, 0.123456789d);

        test(1_1.1d, 1_1.1d);

        test(1_1.10d, 1_1.10d);

        test(1_1.1_0d, 1_1.10d);

        test(1_1.1__0d, 1_1.10d);

        test(1_1.1_0_0d, 1_1.100d);

        test(1_1.1__0__0d, 1_1.100d);

        test(1_1.123_456_789d, 1_1.123456789d);

        // binary

        test(0b1, 1);

        test(0b10, 2);

        test(0b1_0, 2);

        test(0b1__0, 2);

        test(0b1_0_0, 4);

        test(0b1__0__0, 4);

        test(0b0001_0010_0011, 0x123);

        // octal

        test(01, 1);

        test(010, 8);

        test(01_0, 8);

        test(01__0, 8);

        test(01_0_0, 64);

        test(01__0__0, 64);

        test(0_1, 1);

        test(0_10, 8);

        test(0_1_0, 8);

        test(0_1__0, 8);

        test(0_1_0_0, 64);

        test(0_1__0__0, 64);

        test(0_001_002_003, 01002003);

        // hexadecimal

        test(0x1, 1);

        test(0x10, 16);

        test(0x1_0, 16);

        test(0x1__0, 16);

        test(0x1_0_0, 256);

        test(0x1__0__0, 256);

        test(0x01_02_03_04, 0x1020304);

        // misc

        long creditCardNumber = 1234_5678_9012_3456L;

        test(creditCardNumber, 1234567890123456L);

        long socialSecurityNumbers = 999_99_9999L;

        test(socialSecurityNumbers, 999999999L);

        double monetaryAmount = 12_345_132.12d;

        test(monetaryAmount, 12345132.12d);

        long hexBytes = 0xFF_EC_DE_5E;

        test(hexBytes, 0xffecde5e);

        long hexWords = 0xFFEC_DE5E;

        test(hexWords, 0xffecde5e);

        long maxLong = 0x7fff_ffff_ffff_ffffL;

        test(maxLong, 0x7fffffffffffffffL);

        long maxLongDecimal = 9223372036854775807L;

        long alsoMaxLong = 9_223_372_036_854_775_807L;

        test(alsoMaxLong, maxLongDecimal);

        double whyWouldYouEverDoThis = 0x1.ffff_ffff_ffff_fp10_23;

        double whyWouldYouEverDoEvenThis = 0x1.fffffffffffffp1023;

        test(whyWouldYouEverDoThis, whyWouldYouEverDoEvenThis);

        if (errors > 0)

             throw new Exception(errors + " errors found");

    }

    void test(int value, int expect) {

        count++;

        if (value != expect)

            error("test " + count + "\nexpected: 0x" + Integer.toHexString(expect) + "\n   found: 0x" + Integer.toHexString(value));

    }

    void test(double value, double expect) {

        count++;

        if (value != expect)

            error("test " + count + "\nexpected: 0x" + expect + "\n   found: 0x" + value);

    }

    void test(long value, long expect) {

        count++;

        if (value != expect)

            error("test " + count + "\nexpected: 0x" + Long.toHexString(expect) + "\n   found: 0x" + Long.toHexString(value));

    }

    void error(String message) {

        System.out.println(message);

        errors++;

    }

    int count;

    int errors;

}