jjg@409: /*
jjg@1856:  * Copyright (c) 2009, 2013, Oracle and/or its affiliates. All rights reserved.
jjg@409:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
jjg@409:  *
jjg@409:  * This code is free software; you can redistribute it and/or modify it
jjg@409:  * under the terms of the GNU General Public License version 2 only, as
jjg@409:  * published by the Free Software Foundation.
jjg@409:  *
jjg@409:  * This code is distributed in the hope that it will be useful, but WITHOUT
jjg@409:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
jjg@409:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
jjg@409:  * version 2 for more details (a copy is included in the LICENSE file that
jjg@409:  * accompanied this code).
jjg@409:  *
jjg@409:  * You should have received a copy of the GNU General Public License version
jjg@409:  * 2 along with this work; if not, write to the Free Software Foundation,
jjg@409:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
jjg@409:  *
ohair@554:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
ohair@554:  * or visit www.oracle.com if you need additional information or have any
ohair@554:  * questions.
jjg@409:  */
jjg@409: 
jjg@409: /*
jjg@409:  * @test
jjg@409:  * @bug 6860973
jjg@409:  * @summary Project Coin: Underscores in literals
jjg@409:  */
jjg@409: 
jjg@409: 
jjg@409: public class UnderscoreLiterals {
jjg@409:     public static void main(String... args) throws Exception {
jjg@409:         new UnderscoreLiterals().run();
jjg@409:     }
jjg@409: 
jjg@409:     public void run() throws Exception {
jjg@409:         // decimal
jjg@409:         test(1, 1);
jjg@409:         test(10, 10);
jjg@409:         test(1_0, 10);
jjg@409:         test(1__0, 10);
jjg@409:         test(1_0_0, 100);
jjg@409:         test(1__0__0, 100);
jjg@409:         test(123_456_789, 123456789);
jjg@1856:         test(2_147_483_647, Integer.MAX_VALUE);
jjg@1856:         test(-2_147_483_648, Integer.MIN_VALUE);
jjg@1856:         test(32_767, Short.MAX_VALUE);
jjg@1856:         test(-32_768, Short.MIN_VALUE);
jjg@1856:         test(1_2_7, Byte.MAX_VALUE);
jjg@1856:         test(-1_2_8, Byte.MIN_VALUE);
jjg@409: 
jjg@409:         // long
jjg@409:         test(1l, 1l);
jjg@409:         test(10l, 10l);
jjg@409:         test(1_0l, 10l);
jjg@409:         test(1__0l, 10l);
jjg@409:         test(1_0_0l, 100l);
jjg@409:         test(1__0__0l, 100l);
jjg@409:         test(123_456_789l, 123456789l);
jjg@1856:         test(9_223_372_036_854_775_807l, Long.MAX_VALUE);
jjg@1856:         test(-9_223_372_036_854_775_808l, Long.MIN_VALUE);
jjg@409: 
jjg@409:         // float
jjg@409:         test(.1f, .1f);
jjg@409:         test(.10f, .10f);
jjg@409:         test(.1_0f, .10f);
jjg@409:         test(.1__0f, .10f);
jjg@409:         test(.1_0_0f, .100f);
jjg@409:         test(.1__0__0f, .100f);
jjg@409:         test(1e1, 1e1);
jjg@409:         test(1e10, 1e10);
jjg@409:         test(1e1_0, 1e10);
jjg@409:         test(1e1__0, 1e10);
jjg@409:         test(1e1_0_0, 1e100);
jjg@409:         test(1e1__0__0, 1e100);
jjg@409:         test(.123_456_789f, .123456789f);
jjg@409:         test(0.1f, 0.1f);
jjg@409:         test(0.10f, 0.10f);
jjg@409:         test(0.1_0f, 0.10f);
jjg@409:         test(0.1__0f, 0.10f);
jjg@409:         test(0.1_0_0f, 0.100f);
jjg@409:         test(0.1__0__0f, 0.100f);
jjg@409:         test(0.123_456_789f, 0.123456789f);
jjg@409:         test(1_1.1f, 1_1.1f);
jjg@409:         test(1_1.10f, 1_1.10f);
jjg@409:         test(1_1.1_0f, 1_1.10f);
jjg@409:         test(1_1.1__0f, 1_1.10f);
jjg@409:         test(1_1.1_0_0f, 1_1.100f);
jjg@409:         test(1_1.1__0__0f, 1_1.100f);
jjg@409:         test(1_1.123_456_789f, 1_1.123456789f);
jjg@1856:         test(3.4_028_235E38f, Float.MAX_VALUE);
jjg@1856:         test(1.4E-4_5f, Float.MIN_VALUE);
jjg@409: 
jjg@409:         // double
jjg@409:         test(.1d, .1d);
jjg@409:         test(.10d, .10d);
jjg@409:         test(.1_0d, .10d);
jjg@409:         test(.1__0d, .10d);
jjg@409:         test(.1_0_0d, .100d);
jjg@409:         test(.1__0__0d, .100d);
jjg@409:         test(1e1, 1e1);
jjg@409:         test(1e10, 1e10);
jjg@409:         test(1e1_0, 1e10);
jjg@409:         test(1e1__0, 1e10);
jjg@409:         test(1e1_0_0, 1e100);
jjg@409:         test(1e1__0__0, 1e100);
jjg@409:         test(.123_456_789d, .123456789d);
jjg@409:         test(0.1d, 0.1d);
jjg@409:         test(0.10d, 0.10d);
jjg@409:         test(0.1_0d, 0.10d);
jjg@409:         test(0.1__0d, 0.10d);
jjg@409:         test(0.1_0_0d, 0.100d);
jjg@409:         test(0.1__0__0d, 0.100d);
jjg@409:         test(0.123_456_789d, 0.123456789d);
jjg@409:         test(1_1.1d, 1_1.1d);
jjg@409:         test(1_1.10d, 1_1.10d);
jjg@409:         test(1_1.1_0d, 1_1.10d);
jjg@409:         test(1_1.1__0d, 1_1.10d);
jjg@409:         test(1_1.1_0_0d, 1_1.100d);
jjg@409:         test(1_1.1__0__0d, 1_1.100d);
jjg@409:         test(1_1.123_456_789d, 1_1.123456789d);
jjg@1856:         test(1.797_6_9_3_1_348_623_157E3_08, Double.MAX_VALUE);
jjg@1856:         test(4.9E-3_24, Double.MIN_VALUE);
jjg@409: 
jjg@409:         // binary
jjg@409:         test(0b1, 1);
jjg@409:         test(0b10, 2);
jjg@409:         test(0b1_0, 2);
jjg@409:         test(0b1__0, 2);
jjg@409:         test(0b1_0_0, 4);
jjg@409:         test(0b1__0__0, 4);
jjg@409:         test(0b0001_0010_0011, 0x123);
jjg@1856:         test(0b111_1111_1111_1111_1111_1111_1111_1111, Integer.MAX_VALUE);
jjg@1856:         test(0b1000_0000_0000_0000_0000_0000_0000_0000, Integer.MIN_VALUE);
jjg@1856:         test(0b111_1111_1111_1111_1111_1111_1111_1111_1111_1111_1111_1111_1111_1111_1111_1111l, Long.MAX_VALUE);
jjg@1856:         test(0b1000_0000_0000_0000_0000_0000_0000_0000_0000_0000_0000_0000_0000_0000_0000_0000l, Long.MIN_VALUE);
jjg@1856:         test(0b111_1111_1111_1111, Short.MAX_VALUE);
jjg@1856:         test((short)-0b1000_0000_0000_0000, Short.MIN_VALUE);
jjg@1856:         test(0b111_1111, Byte.MAX_VALUE);
jjg@1856:         test((byte)-0b1000_0000, Byte.MIN_VALUE);
jjg@409: 
jjg@409:         // octal
jjg@409:         test(01, 1);
jjg@409:         test(010, 8);
jjg@409:         test(01_0, 8);
jjg@409:         test(01__0, 8);
jjg@409:         test(01_0_0, 64);
jjg@409:         test(01__0__0, 64);
jjg@409:         test(0_1, 1);
jjg@409:         test(0_10, 8);
jjg@409:         test(0_1_0, 8);
jjg@409:         test(0_1__0, 8);
jjg@409:         test(0_1_0_0, 64);
jjg@409:         test(0_1__0__0, 64);
jjg@409:         test(0_001_002_003, 01002003);
jjg@1856:         test(0177_7777_7777, Integer.MAX_VALUE);
jjg@1856:         test(-0200_0000_0000, Integer.MIN_VALUE);
jjg@1856:         test(077_77_77_77_77_7_77_77_77_77_77l, Long.MAX_VALUE);
jjg@1856:         test(-010_00_00_00_00_00_00_00_00_00_00l, Long.MIN_VALUE);
jjg@1856:         test((short)07_77_77, Short.MAX_VALUE);
jjg@1856:         test((short)-010_00_00, Short.MIN_VALUE);
jjg@1856:         test(01_77, Byte.MAX_VALUE);
jjg@1856:         test((byte)-02_00, Byte.MIN_VALUE);
jjg@409: 
jjg@409:         // hexadecimal
jjg@409:         test(0x1, 1);
jjg@409:         test(0x10, 16);
jjg@409:         test(0x1_0, 16);
jjg@409:         test(0x1__0, 16);
jjg@409:         test(0x1_0_0, 256);
jjg@409:         test(0x1__0__0, 256);
jjg@409:         test(0x01_02_03_04, 0x1020304);
jjg@1856:         test(0x7f_ff_ff_ff, Integer.MAX_VALUE);
jjg@1856:         test(0x80_00_00_00, Integer.MIN_VALUE);
jjg@1856:         test(0x1.f_ff_ffep127f, Float.MAX_VALUE);
jjg@1856:         test(0x0.00_00_02p-126f, Float.MIN_VALUE);
jjg@1856:         test(0x1.f__ff_ff_ff_ff_ff_ffp1_023, Double.MAX_VALUE);
jjg@1856:         test(0x0.000_000_000_000_1p-1_022, Double.MIN_VALUE);
jjg@1856:         test(0x7f_ff_ff_ff_ff_ff_ff_ffl, Long.MAX_VALUE);
jjg@1856:         test(0x80_00_00_00_00_00_00_00l, Long.MIN_VALUE);
jjg@1856:         test(0x7f_ff, Short.MAX_VALUE);
jjg@1856:         test((short)0x80_00, Short.MIN_VALUE);
jjg@1856:         test(0x7_f, Byte.MAX_VALUE);
jjg@1856:         test((byte)0x8_0, Byte.MIN_VALUE);
jjg@409: 
jjg@409:         // misc
jjg@409:         long creditCardNumber = 1234_5678_9012_3456L;
jjg@409:         test(creditCardNumber, 1234567890123456L);
jjg@409:         long socialSecurityNumbers = 999_99_9999L;
jjg@409:         test(socialSecurityNumbers, 999999999L);
jjg@409:         double monetaryAmount = 12_345_132.12d;
jjg@409:         test(monetaryAmount, 12345132.12d);
jjg@409:         long hexBytes = 0xFF_EC_DE_5E;
jjg@409:         test(hexBytes, 0xffecde5e);
jjg@409:         long hexWords = 0xFFEC_DE5E;
jjg@409:         test(hexWords, 0xffecde5e);
jjg@409:         long maxLong = 0x7fff_ffff_ffff_ffffL;
jjg@409:         test(maxLong, 0x7fffffffffffffffL);
jjg@409:         long maxLongDecimal = 9223372036854775807L;
jjg@409:         long alsoMaxLong = 9_223_372_036_854_775_807L;
jjg@409:         test(alsoMaxLong, maxLongDecimal);
jjg@409:         double whyWouldYouEverDoThis = 0x1.ffff_ffff_ffff_fp10_23;
jjg@409:         double whyWouldYouEverDoEvenThis = 0x1.fffffffffffffp1023;
jjg@409:         test(whyWouldYouEverDoThis, whyWouldYouEverDoEvenThis);
jjg@409: 
jjg@409:         if (errors > 0)
jjg@409:              throw new Exception(errors + " errors found");
jjg@409:     }
jjg@409: 
jjg@409:     void test(int value, int expect) {
jjg@409:         count++;
jjg@409:         if (value != expect)
jjg@409:             error("test " + count + "\nexpected: 0x" + Integer.toHexString(expect) + "\n   found: 0x" + Integer.toHexString(value));
jjg@409:     }
jjg@409: 
jjg@409:     void test(double value, double expect) {
jjg@409:         count++;
jjg@409:         if (value != expect)
jjg@409:             error("test " + count + "\nexpected: 0x" + expect + "\n   found: 0x" + value);
jjg@409:     }
jjg@409: 
jjg@409:     void test(long value, long expect) {
jjg@409:         count++;
jjg@409:         if (value != expect)
jjg@409:             error("test " + count + "\nexpected: 0x" + Long.toHexString(expect) + "\n   found: 0x" + Long.toHexString(value));
jjg@409:     }
jjg@409: 
jjg@409:     void error(String message) {
jjg@409:         System.out.println(message);
jjg@409:         errors++;
jjg@409:     }
jjg@409: 
jjg@409:     int count;
jjg@409:     int errors;
jjg@409: }