Ishotihadus
45 lines
1.1 KiB
C
45 lines
1.1 KiB
C
#include <ruby.h>
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/* https://github.com/ruby/ruby/blob/master/siphash.c */
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#ifdef _WIN32
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#define BYTE_ORDER __LITTLE_ENDIAN
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#elif !defined BYTE_ORDER
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#include <endian.h>
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#endif
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#ifndef BYTE_ORDER
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#if defined(__BYTE_ORDER__)
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#define BYTE_ORDER __BYTE_ORDER__
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#elif defined(__BYTE_ORDER)
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#define BYTE_ORDER __BYTE_ORDER
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#else
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#error "Neither BYTE_ORDER nor __BYTE_ORDER__ is defined."
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#endif
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#endif
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#ifndef LITTLE_ENDIAN
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#if defined(__LITTLE_ENDIAN)
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#define LITTLE_ENDIAN __LITTLE_ENDIAN
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#define BIG_ENDIAN __BIG_ENDIAN
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#elif defined(__LITTLE_ENDIAN__)
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#define LITTLE_ENDIAN __LITTLE_ENDIAN__
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#define BIG_ENDIAN __BIG_ENDIAN__
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#elif defined(__ORDER_LITTLE_ENDIAN__)
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#define LITTLE_ENDIAN __ORDER_LITTLE_ENDIAN__
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#define BIG_ENDIAN __ORDER_BIG_ENDIAN__
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#else
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#error "Neither LITTLE_ENDIAN, __LITTLE_ENDIAN, nor __ORDER_LITTLE_ENDIAN__ is defined."
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#endif
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#endif
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#if BYTE_ORDER == LITTLE_ENDIAN
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#define IS_LITTLE_ENDIAN 1
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#define IS_BIG_ENDIAN 0
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#elif BYTE_ORDER == BIG_ENDIAN
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#define IS_LITTLE_ENDIAN 0
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#define IS_BIG_ENDIAN 1
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#else
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#error "Only strictly little or big endian supported"
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#endif
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