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Check if macros are defined before using

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Assume macros with the same prefix would be defined together.
This commit is contained in:
Nobuyoshi Nakada 2023-07-24 23:59:50 +09:00
parent 14d1540768
commit 1faeb44dfc
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GPG Key ID: 3582D74E1FEE4465
1 changed files with 4 additions and 4 deletions
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8
include/ruby/io/buffer.h
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@ -56,13 +56,13 @@ enum rb_io_buffer_endian {
RB_IO_BUFFER_LITTLE_ENDIAN = 4, RB_IO_BUFFER_LITTLE_ENDIAN = 4,
RB_IO_BUFFER_BIG_ENDIAN = 8, RB_IO_BUFFER_BIG_ENDIAN = 8,
#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ #if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
RB_IO_BUFFER_HOST_ENDIAN = RB_IO_BUFFER_LITTLE_ENDIAN, RB_IO_BUFFER_HOST_ENDIAN = RB_IO_BUFFER_LITTLE_ENDIAN,
#elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ #elif defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
RB_IO_BUFFER_HOST_ENDIAN = RB_IO_BUFFER_BIG_ENDIAN, RB_IO_BUFFER_HOST_ENDIAN = RB_IO_BUFFER_BIG_ENDIAN,
#elif REG_DWORD == REG_DWORD_LITTLE_ENDIAN #elif defined(REG_DWORD) && REG_DWORD == REG_DWORD_LITTLE_ENDIAN
RB_IO_BUFFER_HOST_ENDIAN = RB_IO_BUFFER_LITTLE_ENDIAN, RB_IO_BUFFER_HOST_ENDIAN = RB_IO_BUFFER_LITTLE_ENDIAN,
#elif REG_DWORD == REG_DWORD_BIG_ENDIAN #elif defined(REG_DWORD) && REG_DWORD == REG_DWORD_BIG_ENDIAN
RB_IO_BUFFER_HOST_ENDIAN = RB_IO_BUFFER_BIG_ENDIAN, RB_IO_BUFFER_HOST_ENDIAN = RB_IO_BUFFER_BIG_ENDIAN,
#endif #endif