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[libc++] Do not forward-declare syncstream outside experimental #82511

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Merged
merged 4 commits into from
Mar 4, 2024
Merged

[libc++] Do not forward-declare syncstream outside experimental #82511

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eb443dc
[libc++] Do not forward-declare syncstream outside experimental
ldionne Feb 21, 2024
59c8aef
Fix iosfwd module in non-experimental mode
ldionne Feb 27, 2024
b52ca78
Format .inc file
ldionne Feb 28, 2024
aa95135
Add endif comment
ldionne Feb 29, 2024
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4 changes: 2 additions & 2 deletions libcxx/include/iosfwd
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Original file line number Diff line number Diff line change
Expand Up @@ -143,7 +143,7 @@ typedef fpos<mbstate_t> u8streampos;
typedef fpos<mbstate_t> u16streampos;
typedef fpos<mbstate_t> u32streampos;

#if _LIBCPP_STD_VER >= 20
#if _LIBCPP_STD_VER >= 20 && !defined(_LIBCPP_HAS_NO_EXPERIMENTAL_SYNCSTREAM)

template <class _CharT, class _Traits = char_traits<_CharT>, class _Allocator = allocator<_CharT>>
class basic_syncbuf;
Expand All @@ -161,7 +161,7 @@ using osyncstream = basic_osyncstream<char>;
using wosyncstream = basic_osyncstream<wchar_t>;
# endif

#endif // _LIBCPP_STD_VER >=20
#endif // _LIBCPP_STD_VER >= 20 && !defined(_LIBCPP_HAS_NO_EXPERIMENTAL_SYNCSTREAM)

// Include other forward declarations here
template <class _Tp, class _Alloc = allocator<_Tp> >
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8 changes: 6 additions & 2 deletions libcxx/modules/std/iosfwd.inc
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Expand Up @@ -18,19 +18,23 @@ export namespace std {
using std::u8streampos;
#endif

#ifndef _LIBCPP_HAS_NO_EXPERIMENTAL_SYNCSTREAM
using std::basic_osyncstream;
using std::basic_syncbuf;
#endif

using std::istreambuf_iterator;
using std::ostreambuf_iterator;

#ifndef _LIBCPP_HAS_NO_EXPERIMENTAL_SYNCSTREAM
using std::osyncstream;
using std::syncbuf;

#ifndef _LIBCPP_HAS_NO_WIDE_CHARACTERS
# ifndef _LIBCPP_HAS_NO_WIDE_CHARACTERS
using std::wosyncstream;
using std::wsyncbuf;
#endif
# endif
#endif // _LIBCPP_HAS_NO_EXPERIMENTAL_SYNCSTREAM

using std::fpos;
} // namespace std