Added formatter for bit_reference-like types #3570
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Final version. |
wangzw
reviewed
Aug 5, 2023
phprus
changed the title
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Final-2 version :) |
wangzw
reviewed
Aug 5, 2023
wangzw
reviewed
Aug 5, 2023
vitaut
requested changes
Aug 5, 2023
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Thanks for the PR.
This looks like a lot of effort and implementation-specific code for such a corner case. I suggest just using std::addressoff and replacing FMT_CONSTEXPR with FMT_COSTEXPR20 in the value ctor overload that uses it. It only affects compile-time formatting anyway that requires a recent standard.
Co-authored-by: Felix <[email protected]> Signed-off-by: Vladislav Shchapov <[email protected]>
Signed-off-by: Vladislav Shchapov <[email protected]>
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@vitaut |
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Works well for me. Thanks |
vitaut
reviewed
Aug 6, 2023
vitaut
reviewed
Aug 6, 2023
vitaut
reviewed
Aug 6, 2023
vitaut
reviewed
Aug 6, 2023
vitaut
reviewed
Aug 6, 2023
include/fmt/std.h
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| #ifdef _LIBCPP_VERSION | ||
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| // Workaround for libc++ incompatibility with C++ standard. | ||
| // According to the Standard, `bitset::operator[] const` returns bool. | ||
| FMT_EXPORT | ||
| template <typename C, typename Char> | ||
| struct formatter<std::__bit_const_reference<C>, Char> : formatter<bool, Char> { | ||
| template <typename FormatContext> | ||
| FMT_CONSTEXPR20 auto format(const std::__bit_const_reference<C>& v, | ||
| FormatContext& ctx) const -> decltype(ctx.out()) { | ||
| return formatter<bool, Char>::format(v, ctx); | ||
| } | ||
| }; | ||
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| #endif |
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I think this can be replaced by a specialization of is_bit_reference_like for __bit_const_reference which seems a bit cleaner (no duplicate formatter).
…ol>::reference Signed-off-by: Vladislav Shchapov <[email protected]>
Signed-off-by: Vladislav Shchapov <[email protected]>
Signed-off-by: Vladislav Shchapov <[email protected]>
vitaut
approved these changes
Aug 6, 2023
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Thank you! |
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Fix for issue #3567
Test is based on #3569