Mercurial > hg > truffle
view src/share/vm/oops/arrayOop.cpp @ 4877:c03e06373b47
Merge
author | stefank |
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date | Sat, 28 Jan 2012 01:15:34 -0800 |
parents | 3c648b9ad052 |
children | 0382d2b469b2 |
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/* * Copyright (c) 1997, 2011, 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. * */ #include "precompiled.hpp" /////////////// Unit tests /////////////// #ifndef PRODUCT #include "oops/arrayOop.hpp" #include "utilities/globalDefinitions.hpp" bool arrayOopDesc::check_max_length_overflow(BasicType type) { julong length = max_array_length(type); julong bytes_per_element = type2aelembytes(type); julong bytes = length * bytes_per_element + header_size_in_bytes(); return (julong)(size_t)bytes == bytes; } void arrayOopDesc::test_max_array_length() { assert(check_max_length_overflow(T_BOOLEAN), "size_t overflow for boolean array"); assert(check_max_length_overflow(T_CHAR), "size_t overflow for char array"); assert(check_max_length_overflow(T_FLOAT), "size_t overflow for float array"); assert(check_max_length_overflow(T_DOUBLE), "size_t overflow for double array"); assert(check_max_length_overflow(T_BYTE), "size_t overflow for byte array"); assert(check_max_length_overflow(T_SHORT), "size_t overflow for short array"); assert(check_max_length_overflow(T_INT), "size_t overflow for int array"); assert(check_max_length_overflow(T_LONG), "size_t overflow for long array"); assert(check_max_length_overflow(T_OBJECT), "size_t overflow for object array"); assert(check_max_length_overflow(T_ARRAY), "size_t overflow for array array"); assert(check_max_length_overflow(T_NARROWOOP), "size_t overflow for narrowOop array"); // T_VOID and T_ADDRESS are not supported by max_array_length() } #endif //PRODUCT