52 lines
1.4 KiB
C
52 lines
1.4 KiB
C
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/**
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(c) Copyright 2007-2015 by National Instruments Corp.
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All rights reserved.
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@file
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@brief Ensure proper structure alignment for data structures. Bookend with lv_epilog.h.
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Data structures requiring platform-specific structure alignment should include this
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header prior to the definition of the structure. You must then include lv_epilog.h
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to restore structure packing to its previous setting.
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@note Never put include guards in this header. It is designed to be included multiple times.
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@note Take care to when including other headers between a lv_prolog.h / lv_epilog.h pair -
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be careful to ensure consistency across software components.
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Example usage:
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@code
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#include "some_header.h"
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#include "platdefines.h"
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#include "lv_prolog.h"
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typedef struct {
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int m_int;
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double m_double;
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} MyStruct;
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#include "lv_epilog.h"
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@endcode
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*/
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#include "platdefines.h"
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#if !defined(NIDL)
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#if MSWin && (ProcessorType == kX86)
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/* Windows x86 targets use 1-byte structure packing. */
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#pragma pack(push,1)
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#pragma warning (disable : 4103) /* disable warning: alignment changed after including header */
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#elif Mac
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/* Use natural alignment on the Mac. */
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#if (Compiler == kGCC) || (Compiler == kMetroWerks)
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#pragma options align=natural
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#else
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#error "Unsupported compiler. Figure out how to set alignment to native/natural"
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#endif
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#else
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/* Use default (or build's) alignment */
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#endif /* struct alignment set */
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#endif /* !defined(NIDL) */
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