73 lines
2.3 KiB
C++
73 lines
2.3 KiB
C++
/* vim: set sw=4 sts=4 et foldmethod=syntax : */
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/*
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* Copyright (c) 2007 David Leverton
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* Copyright (c) 2011 Ciaran McCreesh
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*
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* This file is part of the Paludis package manager. Paludis is free software;
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* you can redistribute it and/or modify it under the terms of the GNU General
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* Public License version 2, as published by the Free Software Foundation.
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*
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* Paludis is distributed in the hope that it will be useful, but WITHOUT ANY
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* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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* details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, write to the Free Software Foundation, Inc., 59 Temple
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* Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <paludis/util/byte_swap.hh>
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#include <stdint.h>
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#include <gtest/gtest.h>
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using namespace paludis;
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namespace
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{
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int64_t int64(int64_t a, int64_t b)
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{
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return (a << 32) | b;
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}
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uint64_t uint64(uint64_t a, uint64_t b)
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{
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return (a << 32) | b;
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}
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}
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#define CHECK(T, X, Y) do { EXPECT_EQ(T(Y), byte_swap(T(X))); EXPECT_EQ(T(X), byte_swap(T(Y))); } while (0)
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TEST(ByteSwap, Works)
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{
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CHECK(int8_t, 0x42, 0x42);
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CHECK(uint8_t, 0x42, 0x42);
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CHECK(int8_t, 0x92, 0x92);
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CHECK(uint8_t, 0x92, 0x92);
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CHECK(int16_t, 0x4218, 0x1842);
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CHECK(uint16_t, 0x4218, 0x1842);
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CHECK(int16_t, 0x4298, 0x9842);
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CHECK(uint16_t, 0x4298, 0x9842);
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CHECK(int16_t, 0x9218, 0x1892);
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CHECK(uint16_t, 0x9218, 0x1892);
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CHECK(int32_t, 0x4218A43F, 0x3FA41842);
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CHECK(uint32_t, 0x4218A43F, 0x3FA41842);
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CHECK(int32_t, 0x4218A4CF, 0xCFA41842);
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CHECK(uint32_t, 0x4218A4CF, 0xCFA41842);
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CHECK(int32_t, 0x9218A43F, 0x3FA41892);
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CHECK(uint32_t, 0x9218A43F, 0x3FA41892);
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CHECK(int64_t, int64(0x42A57104, 0x32D61259), int64(0x5912D632, 0x0471A542));
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CHECK(uint64_t, uint64(0x42A57104, 0x32D61259), uint64(0x5912D632, 0x0471A542));
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CHECK(int64_t, int64(0x42A57104, 0x32D612E9), int64(0xE912D632, 0x0471A542));
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CHECK(uint64_t, uint64(0x42A57104, 0x32D612E9), uint64(0xE912D632, 0x0471A542));
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CHECK(int64_t, int64(0x92A57104, 0x32D61259), int64(0x5912D632, 0x0471A592));
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CHECK(uint64_t, uint64(0x92A57104, 0x32D61259), uint64(0x5912D632, 0x0471A592));
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}
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