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/*
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* Copyright (c) 2014 Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/**
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* JDK-8058610: must not let long operations overflow
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*
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* @test
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* @run
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*/
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function mul(x) {
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return x.foo * x.bar;
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}
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print("=== mul ===")
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print(mul({foo: 2147483647, bar: 2147483647})); // 2^31
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print(mul({foo: 17179869184, bar: 2147483647})); // 2^34
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function self_mul(x) {
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return x.foo *= x.bar;
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}
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print("=== self_mul ===")
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print(self_mul({foo: 2147483647, bar: 2147483647})); // 2^31
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print(self_mul({foo: 17179869184, bar: 2147483647})); // 2^34
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// We'll need to use this function to obtain long values larger in
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// magnitude than those precisely representable in a double (2^53),
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// as Nashorn's parser will reify such literals as a double. For
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// overflow on add and sub we need (2^63)-1.
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var parseLong = Java.type("java.lang.Long").parseLong;
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function sub(x) {
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return x.foo - x.bar;
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}
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print("=== sub ===")
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print(sub({foo: 2147483647, bar: -2147483647})); // 2^31
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print(sub({foo: parseLong("9223372036854775807"), bar: parseLong("-9223372036854775807")})); // 2^63-1
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function self_sub(x) {
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return x.foo -= x.bar;
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}
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print("=== self_sub ===")
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print(self_sub({foo: 2147483647, bar: -2147483647})); // 2^31
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print(self_sub({foo: parseLong("9223372036854775807"), bar: parseLong("-9223372036854775807")})); // 2^63-1
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function add(x) {
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return x.foo + x.bar;
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}
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print("=== add ===")
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print(add({foo: 2147483647, bar: 2147483647})); // 2^31
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print(add({foo: parseLong("9223372036854775807"), bar: parseLong("9223372036854775807")})); // 2^63-1
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function self_add(x) {
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return x.foo += x.bar;
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}
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print("=== self_add ===")
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print(self_add({foo: 2147483647, bar: 2147483647})); // 2^31
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print(self_add({foo: parseLong("9223372036854775807"), bar: parseLong("9223372036854775807")})); // 2^63-1
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