On 13.03.2025 04:29, LIU Hao wrote:
在 2025-3-12 20:42, Jacek Caban 写道:
From: Billy Laws <blaw...@gmail.com>
---
mingw-w64-crt/misc/winbs_uint64.c | 2 +-
mingw-w64-crt/misc/winbs_ulong.c | 5 +++--
mingw-w64-crt/misc/winbs_ushort.c | 5 +++--
3 files changed, 7 insertions(+), 5 deletions(-)
Can we use `__builtin_bswap{16,32,64}` in these files now?
GCC 4.3 added `__builtin_bswap32(int32_t x)` and
`__builtin_bswap64(int64_t x)`. GCC 4.8 added
`__builtin_bswap16(uint16_t x)` and changed the others to unsigned
parameters.
For `_byteswap_ushort()`, if compatibility with GCC 4.7- is desired,
we can always use `__builtin_bswap32(_Short) >> 16`.
I sent a new version using __builtin_bswap*. I don't know about GCC 4.7
compatibility requirement, hopefully it's not needed anymore. I guess
the only way to know for sure is to ignore it and see if anyone notices,
we can always bring back a fallback later.
Thanks,
Jacek
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