/**
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* \file
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*
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* Author:
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* Mono Project (http://www.mono-project.com)
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*
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* Copyright 2001-2003 Ximian, Inc (http://www.ximian.com)
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* Copyright 2004-2009 Novell, Inc (http://www.novell.com)
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* Licensed under the MIT license. See LICENSE file in the project root for full license information.
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*/
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#include <config.h>
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#include <mono/utils/mono-compiler.h>
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#include "mono-endian.h"
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#if NO_UNALIGNED_ACCESS
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typedef union {
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char c [2];
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guint16 i;
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} mono_rint16;
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typedef union {
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char c [4];
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guint32 i;
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} mono_rint32;
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typedef union {
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char c [8];
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guint64 i;
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} mono_rint64;
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guint16
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mono_read16 (const unsigned char *x)
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{
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mono_rint16 r;
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#if G_BYTE_ORDER == G_LITTLE_ENDIAN
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r.c [0] = x [0];
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r.c [1] = x [1];
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#else
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r.c [1] = x [0];
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r.c [0] = x [1];
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#endif
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return r.i;
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}
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guint32
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mono_read32 (const unsigned char *x)
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{
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mono_rint32 r;
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#if G_BYTE_ORDER == G_LITTLE_ENDIAN
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r.c [0] = x [0];
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r.c [1] = x [1];
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r.c [2] = x [2];
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r.c [3] = x [3];
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#else
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r.c [3] = x [0];
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r.c [2] = x [1];
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r.c [1] = x [2];
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r.c [0] = x [3];
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#endif
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return r.i;
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}
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guint64
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mono_read64 (const unsigned char *x)
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{
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mono_rint64 r;
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#if G_BYTE_ORDER == G_LITTLE_ENDIAN
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r.c [0] = x [0];
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r.c [1] = x [1];
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r.c [2] = x [2];
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r.c [3] = x [3];
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r.c [4] = x [4];
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r.c [5] = x [5];
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r.c [6] = x [6];
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r.c [7] = x [7];
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#else
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r.c [7] = x [0];
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r.c [6] = x [1];
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r.c [5] = x [2];
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r.c [4] = x [3];
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r.c [3] = x [4];
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r.c [2] = x [5];
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r.c [1] = x [6];
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r.c [0] = x [7];
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#endif
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return r.i;
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}
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#else /* NO_UNALIGNED_ACCESS */
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MONO_EMPTY_SOURCE_FILE (mono_endian);
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#endif
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