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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 3584 | sourcerer | 1 | /* |
| 2 | * This file is part of LibParserUtils. |
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| 3 | * Licensed under the MIT License, |
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| 4 | * http://www.opensource.org/licenses/mit-license.php |
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| 5 | * Copyright 2009 John-Mark Bell |
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| 6 | */ |
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| 7 | |||
| 8 | #ifndef parserutils_endian_h_ |
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| 9 | #define parserutils_endian_h_ |
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| 10 | |||
| 11 | static inline bool endian_host_is_le(void) |
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| 12 | { |
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| 13 | static uint32_t magic = 0x10000002; |
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| 14 | |||
| 15 | return (((uint8_t *) &magic)[0] == 0x02); |
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| 16 | } |
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| 17 | |||
| 18 | static inline uint32_t endian_swap(uint32_t val) |
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| 19 | { |
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| 20 | return ((val & 0xff000000) >> 24) | ((val & 0x00ff0000) >> 8) | |
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| 21 | ((val & 0x0000ff00) << 8) | ((val & 0x000000ff) << 24); |
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| 22 | } |
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| 23 | |||
| 24 | static inline uint32_t endian_host_to_big(uint32_t host) |
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| 25 | { |
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| 26 | if (endian_host_is_le()) |
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| 27 | return endian_swap(host); |
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| 28 | |||
| 29 | return host; |
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| 30 | } |
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| 31 | |||
| 32 | static inline uint32_t endian_big_to_host(uint32_t big) |
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| 33 | { |
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| 34 | if (endian_host_is_le()) |
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| 35 | return endian_swap(big); |
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| 36 | |||
| 37 | return big; |
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| 38 | } |
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| 39 | |||
| 40 | #endif |