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author | AlexSm <[email protected]> | 2024-03-05 10:40:59 +0100 |
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committer | GitHub <[email protected]> | 2024-03-05 12:40:59 +0300 |
commit | 1ac13c847b5358faba44dbb638a828e24369467b (patch) | |
tree | 07672b4dd3604ad3dee540a02c6494cb7d10dc3d /contrib/libs/cxxsupp/libcxx/include/__std_stream | |
parent | ffcca3e7f7958ddc6487b91d3df8c01054bd0638 (diff) |
Library import 16 (#2433)
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Diffstat (limited to 'contrib/libs/cxxsupp/libcxx/include/__std_stream')
-rw-r--r-- | contrib/libs/cxxsupp/libcxx/include/__std_stream | 361 |
1 files changed, 0 insertions, 361 deletions
diff --git a/contrib/libs/cxxsupp/libcxx/include/__std_stream b/contrib/libs/cxxsupp/libcxx/include/__std_stream deleted file mode 100644 index e419e8c03af..00000000000 --- a/contrib/libs/cxxsupp/libcxx/include/__std_stream +++ /dev/null @@ -1,361 +0,0 @@ -// -*- C++ -*- -//===----------------------------------------------------------------------===// -// -// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. -// See https://llvm.org/LICENSE.txt for license information. -// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception -// -//===----------------------------------------------------------------------===// - -#ifndef _LIBCPP___STD_STREAM -#define _LIBCPP___STD_STREAM - -#include <__config> -#include <__locale> -#include <cstdio> -#include <istream> -#include <ostream> - -#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) -# pragma GCC system_header -#endif - -_LIBCPP_PUSH_MACROS -#include <__undef_macros> - - -_LIBCPP_BEGIN_NAMESPACE_STD - -static const int __limit = 8; - -// __stdinbuf - -template <class _CharT> -class _LIBCPP_HIDDEN __stdinbuf - : public basic_streambuf<_CharT, char_traits<_CharT> > -{ -public: - typedef _CharT char_type; - typedef char_traits<char_type> traits_type; - typedef typename traits_type::int_type int_type; - typedef typename traits_type::pos_type pos_type; - typedef typename traits_type::off_type off_type; - typedef typename traits_type::state_type state_type; - - __stdinbuf(FILE* __fp, state_type* __st); - -protected: - virtual int_type underflow(); - virtual int_type uflow(); - virtual int_type pbackfail(int_type __c = traits_type::eof()); - virtual void imbue(const locale& __loc); - -private: - - FILE* __file_; - const codecvt<char_type, char, state_type>* __cv_; - state_type* __st_; - int __encoding_; - int_type __last_consumed_; - bool __last_consumed_is_next_; - bool __always_noconv_; - - __stdinbuf(const __stdinbuf&); - __stdinbuf& operator=(const __stdinbuf&); - - int_type __getchar(bool __consume); -}; - -template <class _CharT> -__stdinbuf<_CharT>::__stdinbuf(FILE* __fp, state_type* __st) - : __file_(__fp), - __st_(__st), - __last_consumed_(traits_type::eof()), - __last_consumed_is_next_(false) -{ - imbue(this->getloc()); -} - -template <class _CharT> -void -__stdinbuf<_CharT>::imbue(const locale& __loc) -{ - __cv_ = &use_facet<codecvt<char_type, char, state_type> >(__loc); - __encoding_ = __cv_->encoding(); - __always_noconv_ = __cv_->always_noconv(); - if (__encoding_ > __limit) - __throw_runtime_error("unsupported locale for standard input"); -} - -template <class _CharT> -typename __stdinbuf<_CharT>::int_type -__stdinbuf<_CharT>::underflow() -{ - return __getchar(false); -} - -template <class _CharT> -typename __stdinbuf<_CharT>::int_type -__stdinbuf<_CharT>::uflow() -{ - return __getchar(true); -} - -template <class _CharT> -typename __stdinbuf<_CharT>::int_type -__stdinbuf<_CharT>::__getchar(bool __consume) -{ - if (__last_consumed_is_next_) - { - int_type __result = __last_consumed_; - if (__consume) - { - __last_consumed_ = traits_type::eof(); - __last_consumed_is_next_ = false; - } - return __result; - } - char __extbuf[__limit]; - int __nread = _VSTD::max(1, __encoding_); - for (int __i = 0; __i < __nread; ++__i) - { - int __c = getc(__file_); - if (__c == EOF) - return traits_type::eof(); - __extbuf[__i] = static_cast<char>(__c); - } - char_type __1buf; - if (__always_noconv_) - __1buf = static_cast<char_type>(__extbuf[0]); - else - { - const char* __enxt; - char_type* __inxt; - codecvt_base::result __r; - do - { - state_type __sv_st = *__st_; - __r = __cv_->in(*__st_, __extbuf, __extbuf + __nread, __enxt, - &__1buf, &__1buf + 1, __inxt); - switch (__r) - { - case _VSTD::codecvt_base::ok: - break; - case codecvt_base::partial: - *__st_ = __sv_st; - if (__nread == sizeof(__extbuf)) - return traits_type::eof(); - { - int __c = getc(__file_); - if (__c == EOF) - return traits_type::eof(); - __extbuf[__nread] = static_cast<char>(__c); - } - ++__nread; - break; - case codecvt_base::error: - return traits_type::eof(); - case _VSTD::codecvt_base::noconv: - __1buf = static_cast<char_type>(__extbuf[0]); - break; - } - } while (__r == _VSTD::codecvt_base::partial); - } - if (!__consume) - { - for (int __i = __nread; __i > 0;) - { - if (ungetc(traits_type::to_int_type(__extbuf[--__i]), __file_) == EOF) - return traits_type::eof(); - } - } - else - __last_consumed_ = traits_type::to_int_type(__1buf); - return traits_type::to_int_type(__1buf); -} - -template <class _CharT> -typename __stdinbuf<_CharT>::int_type -__stdinbuf<_CharT>::pbackfail(int_type __c) -{ - if (traits_type::eq_int_type(__c, traits_type::eof())) - { - if (!__last_consumed_is_next_) - { - __c = __last_consumed_; - __last_consumed_is_next_ = !traits_type::eq_int_type(__last_consumed_, - traits_type::eof()); - } - return __c; - } - if (__last_consumed_is_next_) - { - char __extbuf[__limit]; - char* __enxt; - const char_type __ci = traits_type::to_char_type(__last_consumed_); - const char_type* __inxt; - switch (__cv_->out(*__st_, &__ci, &__ci + 1, __inxt, - __extbuf, __extbuf + sizeof(__extbuf), __enxt)) - { - case _VSTD::codecvt_base::ok: - break; - case _VSTD::codecvt_base::noconv: - __extbuf[0] = static_cast<char>(__last_consumed_); - __enxt = __extbuf + 1; - break; - case codecvt_base::partial: - case codecvt_base::error: - return traits_type::eof(); - } - while (__enxt > __extbuf) - if (ungetc(*--__enxt, __file_) == EOF) - return traits_type::eof(); - } - __last_consumed_ = __c; - __last_consumed_is_next_ = true; - return __c; -} - -// __stdoutbuf - -template <class _CharT> -class _LIBCPP_HIDDEN __stdoutbuf - : public basic_streambuf<_CharT, char_traits<_CharT> > -{ -public: - typedef _CharT char_type; - typedef char_traits<char_type> traits_type; - typedef typename traits_type::int_type int_type; - typedef typename traits_type::pos_type pos_type; - typedef typename traits_type::off_type off_type; - typedef typename traits_type::state_type state_type; - - __stdoutbuf(FILE* __fp, state_type* __st); - -protected: - virtual int_type overflow (int_type __c = traits_type::eof()); - virtual streamsize xsputn(const char_type* __s, streamsize __n); - virtual int sync(); - virtual void imbue(const locale& __loc); - -private: - FILE* __file_; - const codecvt<char_type, char, state_type>* __cv_; - state_type* __st_; - bool __always_noconv_; - - __stdoutbuf(const __stdoutbuf&); - __stdoutbuf& operator=(const __stdoutbuf&); -}; - -template <class _CharT> -__stdoutbuf<_CharT>::__stdoutbuf(FILE* __fp, state_type* __st) - : __file_(__fp), - __cv_(&use_facet<codecvt<char_type, char, state_type> >(this->getloc())), - __st_(__st), - __always_noconv_(__cv_->always_noconv()) -{ -} - -template <class _CharT> -typename __stdoutbuf<_CharT>::int_type -__stdoutbuf<_CharT>::overflow(int_type __c) -{ - char __extbuf[__limit]; - char_type __1buf; - if (!traits_type::eq_int_type(__c, traits_type::eof())) - { - __1buf = traits_type::to_char_type(__c); - if (__always_noconv_) - { - if (fwrite(&__1buf, sizeof(char_type), 1, __file_) != 1) - return traits_type::eof(); - } - else - { - char* __extbe = __extbuf; - codecvt_base::result __r; - char_type* pbase = &__1buf; - char_type* pptr = pbase + 1; - do - { - const char_type* __e; - __r = __cv_->out(*__st_, pbase, pptr, __e, - __extbuf, - __extbuf + sizeof(__extbuf), - __extbe); - if (__e == pbase) - return traits_type::eof(); - if (__r == codecvt_base::noconv) - { - if (fwrite(pbase, 1, 1, __file_) != 1) - return traits_type::eof(); - } - else if (__r == codecvt_base::ok || __r == codecvt_base::partial) - { - size_t __nmemb = static_cast<size_t>(__extbe - __extbuf); - if (fwrite(__extbuf, 1, __nmemb, __file_) != __nmemb) - return traits_type::eof(); - if (__r == codecvt_base::partial) - { - pbase = const_cast<char_type*>(__e); - } - } - else - return traits_type::eof(); - } while (__r == codecvt_base::partial); - } - } - return traits_type::not_eof(__c); -} - -template <class _CharT> -streamsize -__stdoutbuf<_CharT>::xsputn(const char_type* __s, streamsize __n) -{ - if (__always_noconv_) - return fwrite(__s, sizeof(char_type), __n, __file_); - streamsize __i = 0; - for (; __i < __n; ++__i, ++__s) - if (overflow(traits_type::to_int_type(*__s)) == traits_type::eof()) - break; - return __i; -} - -template <class _CharT> -int -__stdoutbuf<_CharT>::sync() -{ - char __extbuf[__limit]; - codecvt_base::result __r; - do - { - char* __extbe; - __r = __cv_->unshift(*__st_, __extbuf, - __extbuf + sizeof(__extbuf), - __extbe); - size_t __nmemb = static_cast<size_t>(__extbe - __extbuf); - if (fwrite(__extbuf, 1, __nmemb, __file_) != __nmemb) - return -1; - } while (__r == codecvt_base::partial); - if (__r == codecvt_base::error) - return -1; - if (fflush(__file_)) - return -1; - return 0; -} - -template <class _CharT> -void -__stdoutbuf<_CharT>::imbue(const locale& __loc) -{ - sync(); - __cv_ = &use_facet<codecvt<char_type, char, state_type> >(__loc); - __always_noconv_ = __cv_->always_noconv(); -} - -_LIBCPP_END_NAMESPACE_STD - -_LIBCPP_POP_MACROS - -#endif // _LIBCPP___STD_STREAM |