--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/langtools/test/tools/javac/literals/UnderscoreLiterals.java Tue Sep 15 18:36:21 2009 -0700
@@ -0,0 +1,195 @@
+/*
+ * Copyright 2009 Sun Microsystems, Inc. All Rights Reserved.
+ * 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.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+/*
+ * @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;
+}