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◆ rrdc-perf enhanced-x16-emulator / src / endian.h
793 B · Objective-C · last changed chore(): initial commit 25 days ago source blame history raw
9120e874 Andy McCall 1 
#pragma once
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// MSVC doesn't define __BYTE_ORDER__; Windows is always little-endian
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#if defined(_MSC_VER) && !defined(__BYTE_ORDER__)
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#define __BYTE_ORDER__            1234
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#define __ORDER_LITTLE_ENDIAN__   1234
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#define __ORDER_BIG_ENDIAN__      4321
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#endif
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#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
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#define LOW_HIGH_UNION(name, low, high) \
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    union { \
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        struct { \
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            uint8_t low; \
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            uint8_t high; \
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        }; \
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        uint16_t name; \
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    }
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#define ENDIAN_STRUCT_MEMBERS(low, high) \
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    low; \
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    high
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#else
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#define LOW_HIGH_UNION(name, low, high) \
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    union { \
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        struct { \
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            uint8_t high; \
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            uint8_t low; \
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        }; \
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        uint16_t name; \
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    }
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#define ENDIAN_STRUCT_MEMBERS(low, high) \
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    high; \
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    low
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#endif