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/*
* Copyright (c) 2014, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/**
* JDK-8058610: must not let long operations overflow
*
* @test
* @run
*/
function mul(x) {
return x.foo * x.bar;
}
print("=== mul ===")
print(mul({foo: 2147483647, bar: 2147483647})); // 2^31
print(mul({foo: 17179869184, bar: 2147483647})); // 2^34
function self_mul(x) {
return x.foo *= x.bar;
}
print("=== self_mul ===")
print(self_mul({foo: 2147483647, bar: 2147483647})); // 2^31
print(self_mul({foo: 17179869184, bar: 2147483647})); // 2^34
// We'll need to use this function to obtain long values larger in
// magnitude than those precisely representable in a double (2^53),
// as Nashorn's parser will reify such literals as a double. For
// overflow on add and sub we need (2^63)-1.
var parseLong = Java.type("java.lang.Long").parseLong;
function sub(x) {
return x.foo - x.bar;
}
print("=== sub ===")
print(sub({foo: 2147483647, bar: -2147483647})); // 2^31
print(sub({foo: parseLong("9223372036854775807"), bar: parseLong("-9223372036854775807")})); // 2^63-1
function self_sub(x) {
return x.foo -= x.bar;
}
print("=== self_sub ===")
print(self_sub({foo: 2147483647, bar: -2147483647})); // 2^31
print(self_sub({foo: parseLong("9223372036854775807"), bar: parseLong("-9223372036854775807")})); // 2^63-1
function add(x) {
return x.foo + x.bar;
}
print("=== add ===")
print(add({foo: 2147483647, bar: 2147483647})); // 2^31
print(add({foo: parseLong("9223372036854775807"), bar: parseLong("9223372036854775807")})); // 2^63-1
function self_add(x) {
return x.foo += x.bar;
}
print("=== self_add ===")
print(self_add({foo: 2147483647, bar: 2147483647})); // 2^31
print(self_add({foo: parseLong("9223372036854775807"), bar: parseLong("9223372036854775807")})); // 2^63-1
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