Stephan Bergmann
fd8b519023
...after d0ee08cfbf "oox: export embedded font
used in a presentation document" caused CppunitTest_vcl_font_ttf_structure_test
to fail with
> vcl/qa/cppunit/font/TTFStructureTest.cxx:47:5: runtime error: member call on misaligned address 0x7de9211e0262 for type 'o3tl::sal_uInt32_BE', which requires 4 byte alignment
> 0x7de9211e0262: note: pointer points here
> 00 00 00 00 80 00 00 af 10 00 20 48 00 00 00 00 00 00 00 00 57 33 43 00 00 40 00 20 f0 02 03 20
> ^
> #0 in (anonymous namespace)::testReadTTFStructure::TestBody() at vcl/qa/cppunit/font/TTFStructureTest.cxx:47:5
Change-Id: I4d46decd497fccf7eecdb38764ac82ed2a68b5d6
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/184829
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <stephan.bergmann@allotropia.de>
57 lines
1.5 KiB
C++
57 lines
1.5 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*/
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#pragma once
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#include <sal/config.h>
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#include <sal/types.h>
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namespace o3tl
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{
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/** 16-bit unsigned integer type that can be used in a struct to read from data that is big endian
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and potentially misaligned.
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*
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* Type can't be instantiated but only used in a struct which is reinterpret_cast from bytes.
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*/
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class sal_uInt16_BE
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{
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private:
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sal_uInt8 mnValue[2];
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sal_uInt16_BE() = delete;
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public:
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constexpr operator sal_uInt16() const
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{
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return sal_uInt32(mnValue[1]) | (sal_uInt32(mnValue[0]) << 8);
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}
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};
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/** 32-bit unsigned integer type that can be used in a struct to read from data that is big endian
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and potentially misaligned.
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*
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* Type can't be instantiated but only used in a struct which is reinterpret_cast from bytes.
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*/
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class sal_uInt32_BE
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{
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private:
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sal_uInt8 mnValue[4];
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sal_uInt32_BE() = delete;
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public:
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constexpr operator sal_uInt32() const
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{
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return sal_uInt32(mnValue[3]) | (sal_uInt32(mnValue[2]) << 8)
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| (sal_uInt32(mnValue[1]) << 16) | (sal_uInt32(mnValue[0]) << 24);
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}
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};
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} // namespace o3tl
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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