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undefect. CWE-407 — 63 sites patched across 27 ecosystems

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Authors: russell@unturf.com · brackishbert@gmail.com · foxhop.net · TimeHexOn.com

Patches, unit tests, benchmarks, whitepaper, and outreach briefs.
Public domain — no copyright claimed. Use freely.
This commit is contained in:
russell@unturf.com 2026-03-26 17:11:57 -04:00
commit 0a580b313d
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124
test/jdk/java/lang/Math/MinMax.java Normal file
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/*
* Copyright (c) 1997, 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.
*/
/* @test
@bug 4010528 4010529
@summary Math.min and Math.max should treat negative zero as strictly
less than positive zero
*/
public class MinMax {
static void go(String what, float result, float correctResult) {
String v = what + ": got " + result + ", expected " + correctResult;
if (!(Float.toString(result).equals(Float.toString(correctResult))))
throw new RuntimeException(v);
System.err.println(v);
}
static void go(String what, double result, double correctResult) {
String v = what + ": got " + result + ", expected " + correctResult;
if (!(Double.toString(result).equals(Double.toString(correctResult))))
throw new RuntimeException(v);
System.err.println(v);
}
public static void main(String[] args) {
float fnz = -0.0f;
float fpz = +0.0f;
go("Math.min(fnz, fnz)", Math.min(fnz, fnz), fnz);
go("Math.min(fnz, fpz)", Math.min(fnz, fpz), fnz);
go("Math.min(fpz, fnz)", Math.min(fpz, fnz), fnz);
go("Math.min(fpz, fpz)", Math.min(fpz, fpz), fpz);
go("Math.min(-1.0f, fnz)", Math.min(-1.0f, fnz), -1.0f);
go("Math.min(-1.0f, fpz)", Math.min(-1.0f, fpz), -1.0f);
go("Math.min(+1.0f, fnz)", Math.min(+1.0f, fnz), fnz);
go("Math.min(+1.0f, fpz)", Math.min(+1.0f, fpz), fpz);
go("Math.min(-1.0f, +1.0f)", Math.min(-1.0f, +1.0f), -1.0f);
go("Math.min(fnz, -1.0f)", Math.min(fnz, -1.0f), -1.0f);
go("Math.min(fpz, -1.0f)", Math.min(fpz, -1.0f), -1.0f);
go("Math.min(fnz, +1.0f)", Math.min(fnz, +1.0f), fnz);
go("Math.min(fpz, +1.0f)", Math.min(fpz, +1.0f), fpz);
go("Math.min(+1.0f, -1.0f)", Math.min(+1.0f, -1.0f), -1.0f);
go("Math.max(fnz, fnz)", Math.max(fnz, fnz), fnz);
go("Math.max(fnz, fpz)", Math.max(fnz, fpz), fpz);
go("Math.max(fpz, fnz)", Math.max(fpz, fnz), fpz);
go("Math.max(fpz, fpz)", Math.max(fpz, fpz), fpz);
go("Math.max(-1.0f, fnz)", Math.max(-1.0f, fnz), fnz);
go("Math.max(-1.0f, fpz)", Math.max(-1.0f, fpz), fpz);
go("Math.max(+1.0f, fnz)", Math.max(+1.0f, fnz), +1.0f);
go("Math.max(+1.0f, fpz)", Math.max(+1.0f, fpz), +1.0f);
go("Math.max(-1.0f, +1.0f)", Math.max(-1.0f, +1.0f), +1.0f);
go("Math.max(fnz, -1.0f)", Math.max(fnz, -1.0f), fnz);
go("Math.max(fpz, -1.0f)", Math.max(fpz, -1.0f), fpz);
go("Math.max(fnz, +1.0f)", Math.max(fnz, +1.0f), +1.0f);
go("Math.max(fpz, +1.0f)", Math.max(fpz, +1.0f), +1.0f);
go("Math.max(+1.0f, -1.0f)", Math.max(+1.0f, -1.0f), +1.0f);
double dnz = -0.0d;
double dpz = +0.0d;
go("Math.min(dnz, dnz)", Math.min(dnz, dnz), dnz);
go("Math.min(dnz, dpz)", Math.min(dnz, dpz), dnz);
go("Math.min(dpz, dnz)", Math.min(dpz, dnz), dnz);
go("Math.min(dpz, dpz)", Math.min(dpz, dpz), dpz);
go("Math.min(-1.0d, dnz)", Math.min(-1.0d, dnz), -1.0d);
go("Math.min(-1.0d, dpz)", Math.min(-1.0d, dpz), -1.0d);
go("Math.min(+1.0d, dnz)", Math.min(+1.0d, dnz), dnz);
go("Math.min(+1.0d, dpz)", Math.min(+1.0d, dpz), dpz);
go("Math.min(-1.0d, +1.0d)", Math.min(-1.0d, +1.0d), -1.0d);
go("Math.min(dnz, -1.0d)", Math.min(dnz, -1.0d), -1.0d);
go("Math.min(dpz, -1.0d)", Math.min(dpz, -1.0d), -1.0d);
go("Math.min(dnz, +1.0d)", Math.min(dnz, +1.0d), dnz);
go("Math.min(dpz, +1.0d)", Math.min(dpz, +1.0d), dpz);
go("Math.min(+1.0d, -1.0d)", Math.min(+1.0d, -1.0d), -1.0d);
go("Math.max(dnz, dnz)", Math.max(dnz, dnz), dnz);
go("Math.max(dnz, dpz)", Math.max(dnz, dpz), dpz);
go("Math.max(dpz, dnz)", Math.max(dpz, dnz), dpz);
go("Math.max(dpz, dpz)", Math.max(dpz, dpz), dpz);
go("Math.max(-1.0d, dnz)", Math.max(-1.0d, dnz), dnz);
go("Math.max(-1.0d, dpz)", Math.max(-1.0d, dpz), dpz);
go("Math.max(+1.0d, dnz)", Math.max(+1.0d, dnz), +1.0d);
go("Math.max(+1.0d, dpz)", Math.max(+1.0d, dpz), +1.0d);
go("Math.max(-1.0d, +1.0d)", Math.max(-1.0d, +1.0d), +1.0d);
go("Math.max(dnz, -1.0d)", Math.max(dnz, -1.0d), dnz);
go("Math.max(dpz, -1.0d)", Math.max(dpz, -1.0d), dpz);
go("Math.max(dnz, +1.0d)", Math.max(dnz, +1.0d), +1.0d);
go("Math.max(dpz, +1.0d)", Math.max(dpz, +1.0d), +1.0d);
go("Math.max(+1.0d, -1.0d)", Math.max(+1.0d, -1.0d), +1.0d);
}
}