72 lines
1.9 KiB
C++
72 lines
1.9 KiB
C++
/*
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This file is part of Warzone 2100.
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Copyright (C) 1999-2004 Eidos Interactive
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Copyright (C) 2005-2011 Warzone 2100 Project
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Warzone 2100 is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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Warzone 2100 is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Warzone 2100; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/**
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* @file
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* Endianness functions
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*/
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#ifndef ENDIAN_HACK_H
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#define ENDIAN_HACK_H
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#include <string.h>
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static inline void endian_uword(UWORD* p)
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{
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STATIC_ASSERT(sizeof(*p) == 2);
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uint8_t bytes[sizeof(*p)];
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memcpy(bytes, p, sizeof(*p));
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*p = bytes[1]<<8 | bytes[0];
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}
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static inline void endian_sword(SWORD* p)
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{
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STATIC_ASSERT(sizeof(*p) == 2);
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uint8_t bytes[sizeof(*p)];
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memcpy(bytes, p, sizeof(*p));
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*p = bytes[1]<<8 | bytes[0];
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}
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static inline void endian_udword(UDWORD* p)
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{
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STATIC_ASSERT(sizeof(*p) == 4);
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uint8_t bytes[sizeof(*p)];
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memcpy(bytes, p, sizeof(*p));
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*p = bytes[3]<<24 | bytes[2]<<16 | bytes[1]<<8 | bytes[0];
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}
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static inline void endian_sdword(SDWORD* p)
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{
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STATIC_ASSERT(sizeof(*p) == 4);
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uint8_t bytes[sizeof(*p)];
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memcpy(bytes, p, sizeof(*p));
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*p = bytes[3]<<24 | bytes[2]<<16 | bytes[1]<<8 | bytes[0];
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}
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template <typename ENUM>
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static inline void endian_enum(ENUM *p)
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{
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STATIC_ASSERT(sizeof(*p) == 4);
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uint8_t bytes[sizeof(*p)];
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memcpy(bytes, p, sizeof(*p));
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*p = ENUM(bytes[3]<<24 | bytes[2]<<16 | bytes[1]<<8 | bytes[0]);
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}
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#endif // ENDIAN_HACK_H
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