//usr/include/c++/11/bits
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.. / Parent Directory
algorithmfwd.h — 23.97 KB
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align.h — 3.62 KB
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alloc_traits.h — 26.98 KB
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allocated_ptr.h — 3.25 KB
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allocator.h — 9.51 KB
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atomic_base.h — 56.07 KB
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atomic_futex.h — 12.1 KB
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atomic_lockfree_defines.h — 2.3 KB
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atomic_timed_wait.h — 13.21 KB
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atomic_wait.h — 12.26 KB
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basic_ios.h — 15.7 KB
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basic_ios.tcc — 5.94 KB
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basic_string.h — 246.04 KB
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basic_string.tcc — 52.92 KB
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boost_concept_check.h — 26.54 KB
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c++0x_warning.h — 1.44 KB
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char_traits.h — 28.66 KB
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charconv.h — 3.35 KB
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codecvt.h — 24.9 KB
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concept_check.h — 3.34 KB
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cpp_type_traits.h — 13.67 KB
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cxxabi_forced.h — 1.77 KB
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cxxabi_init_exception.h — 2.17 KB
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deque.tcc — 41.37 KB
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enable_special_members.h — 12.16 KB
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erase_if.h — 2.02 KB
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exception.h — 2.45 KB
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exception_defines.h — 1.61 KB
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exception_ptr.h — 7.46 KB
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forward_list.h — 49.21 KB
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forward_list.tcc — 13.71 KB
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fs_dir.h — 16.23 KB
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fs_fwd.h — 10.65 KB
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fs_ops.h — 10.49 KB
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fs_path.h — 39.49 KB
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fstream.tcc — 32.88 KB
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functexcept.h — 3.43 KB
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functional_hash.h — 8.39 KB
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gslice.h — 5.39 KB
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gslice_array.h — 7.71 KB
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hash_bytes.h — 2.1 KB
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hashtable.h — 82.94 KB
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hashtable_policy.h — 60.84 KB
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indirect_array.h — 7.72 KB
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invoke.h — 5.92 KB
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ios_base.h — 31.19 KB
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istream.tcc — 30.85 KB
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iterator_concepts.h — 32.55 KB
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list.tcc — 16.8 KB
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locale_classes.h — 24.46 KB
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locale_classes.tcc — 8.18 KB
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locale_conv.h — 18.38 KB
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locale_facets.h — 91.46 KB
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locale_facets.tcc — 39.51 KB
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locale_facets_nonio.h — 68.07 KB
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locale_facets_nonio.tcc — 46.42 KB
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localefwd.h — 5.8 KB
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mask_array.h — 7.54 KB
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max_size_type.h — 22.18 KB
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memoryfwd.h — 2.45 KB
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move.h — 6.64 KB
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nested_exception.h — 4.77 KB
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node_handle.h — 11.07 KB
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ostream.tcc — 12.03 KB
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ostream_insert.h — 3.94 KB
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parse_numbers.h — 7.79 KB
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postypes.h — 8.27 KB
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predefined_ops.h — 9.94 KB
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ptr_traits.h — 6.55 KB
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quoted_string.h — 4.93 KB
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random.h — 174.18 KB
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random.tcc — 103.21 KB
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range_access.h — 10.46 KB
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ranges_algo.h — 114.09 KB
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ranges_algobase.h — 18.43 KB
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ranges_base.h — 23.82 KB
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ranges_cmp.h — 5.88 KB
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ranges_uninitialized.h — 17.71 KB
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ranges_util.h — 20.11 KB
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refwrap.h — 12.9 KB
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regex.h — 101.53 KB
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regex.tcc — 16.11 KB
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regex_automaton.h — 10.54 KB
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regex_automaton.tcc — 7.54 KB
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regex_compiler.h — 15.84 KB
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regex_compiler.tcc — 18.71 KB
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regex_constants.h — 15.18 KB
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regex_error.h — 4.9 KB
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regex_executor.h — 8.64 KB
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regex_executor.tcc — 18.4 KB
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regex_scanner.h — 6.88 KB
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regex_scanner.tcc — 14.89 KB
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semaphore_base.h — 7.75 KB
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shared_ptr.h — 30.25 KB
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shared_ptr_atomic.h — 9.64 KB
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shared_ptr_base.h — 53.62 KB
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slice_array.h — 9.39 KB
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specfun.h — 46.13 KB
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sstream.tcc — 9.91 KB
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std_abs.h — 3.28 KB
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std_function.h — 22.33 KB
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std_mutex.h — 6.29 KB
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std_thread.h — 8.39 KB
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stl_algo.h — 209.67 KB
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stl_algobase.h — 74.6 KB
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stl_bvector.h — 34.74 KB
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stl_construct.h — 8.59 KB
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stl_deque.h — 75.17 KB
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stl_function.h — 42.87 KB
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stl_heap.h — 20.27 KB
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stl_iterator.h — 77 KB
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stl_iterator_base_funcs.h — 7.99 KB
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stl_iterator_base_types.h — 9.44 KB
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stl_list.h — 68.14 KB
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stl_map.h — 53.41 KB
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stl_multimap.h — 42.51 KB
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stl_multiset.h — 36.79 KB
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stl_numeric.h — 14.26 KB
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stl_pair.h — 19.66 KB
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stl_queue.h — 24.45 KB
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stl_raw_storage_iter.h — 3.74 KB
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stl_relops.h — 4.49 KB
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stl_set.h — 37.05 KB
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stl_stack.h — 12.39 KB
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stl_tempbuf.h — 8.45 KB
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stl_tree.h — 72.16 KB
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stl_uninitialized.h — 33.22 KB
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stl_vector.h — 64.37 KB
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stream_iterator.h — 7.52 KB
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streambuf.tcc — 4.81 KB
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streambuf_iterator.h — 15.17 KB
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string_view.tcc — 7 KB
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stringfwd.h — 2.63 KB
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this_thread_sleep.h — 3.23 KB
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uniform_int_dist.h — 12.75 KB
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unique_lock.h — 6 KB
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unique_ptr.h — 31.77 KB
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unordered_map.h — 74.87 KB
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unordered_set.h — 61.46 KB
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uses_allocator.h — 6.74 KB
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uses_allocator_args.h — 7.38 KB
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valarray_after.h — 22.74 KB
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valarray_array.h — 20.8 KB
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valarray_array.tcc — 7.08 KB
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valarray_before.h — 18.69 KB
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vector.tcc — 30.26 KB
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// Streambuf iterators // Copyright (C) 1997-2021 Free Software Foundation, Inc. // // This file is part of the GNU ISO C++ Library. This library is free // software; you can redistribute it and/or modify it under the // terms of the GNU General Public License as published by the // Free Software Foundation; either version 3, or (at your option) // any later version. // This library is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // Under Section 7 of GPL version 3, you are granted additional // permissions described in the GCC Runtime Library Exception, version // 3.1, as published by the Free Software Foundation. // You should have received a copy of the GNU General Public License and // a copy of the GCC Runtime Library Exception along with this program; // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see // . /** @file bits/streambuf_iterator.h * This is an internal header file, included by other library headers. * Do not attempt to use it directly. @headername{iterator} */ #ifndef _STREAMBUF_ITERATOR_H #define _STREAMBUF_ITERATOR_H 1 #pragma GCC system_header #include #include namespace std _GLIBCXX_VISIBILITY(default) { _GLIBCXX_BEGIN_NAMESPACE_VERSION /** * @addtogroup iterators * @{ */ // 24.5.3 Template class istreambuf_iterator /// Provides input iterator semantics for streambufs. template class istreambuf_iterator : public iterator { public: // Types: ///@{ /// Public typedefs #if __cplusplus < 201103L typedef _CharT& reference; // Changed to _CharT by LWG 445 #elif __cplusplus > 201703L // _GLIBCXX_RESOLVE_LIB_DEFECTS // 3188. istreambuf_iterator::pointer should not be unspecified using pointer = void; #endif typedef _CharT char_type; typedef _Traits traits_type; typedef typename _Traits::int_type int_type; typedef basic_streambuf<_CharT, _Traits> streambuf_type; typedef basic_istream<_CharT, _Traits> istream_type; ///@} template friend typename __gnu_cxx::__enable_if<__is_char<_CharT2>::__value, ostreambuf_iterator<_CharT2> >::__type copy(istreambuf_iterator<_CharT2>, istreambuf_iterator<_CharT2>, ostreambuf_iterator<_CharT2>); template friend typename __gnu_cxx::__enable_if<__is_char<_CharT2>::__value, _CharT2*>::__type __copy_move_a2(istreambuf_iterator<_CharT2>, istreambuf_iterator<_CharT2>, _CharT2*); template friend typename __gnu_cxx::__enable_if<__is_char<_CharT2>::__value, _CharT2*>::__type __copy_n_a(istreambuf_iterator<_CharT2>, _Size, _CharT2*, bool); template friend typename __gnu_cxx::__enable_if<__is_char<_CharT2>::__value, istreambuf_iterator<_CharT2> >::__type find(istreambuf_iterator<_CharT2>, istreambuf_iterator<_CharT2>, const _CharT2&); template friend typename __gnu_cxx::__enable_if<__is_char<_CharT2>::__value, void>::__type advance(istreambuf_iterator<_CharT2>&, _Distance); private: // 24.5.3 istreambuf_iterator // p 1 // If the end of stream is reached (streambuf_type::sgetc() // returns traits_type::eof()), the iterator becomes equal to // the "end of stream" iterator value. // NB: This implementation assumes the "end of stream" value // is EOF, or -1. mutable streambuf_type* _M_sbuf; int_type _M_c; public: /// Construct end of input stream iterator. _GLIBCXX_CONSTEXPR istreambuf_iterator() _GLIBCXX_USE_NOEXCEPT : _M_sbuf(0), _M_c(traits_type::eof()) { } #if __cplusplus > 201703L && __cpp_lib_concepts constexpr istreambuf_iterator(default_sentinel_t) noexcept : istreambuf_iterator() { } #endif #if __cplusplus >= 201103L istreambuf_iterator(const istreambuf_iterator&) noexcept = default; ~istreambuf_iterator() = default; #endif /// Construct start of input stream iterator. istreambuf_iterator(istream_type& __s) _GLIBCXX_USE_NOEXCEPT : _M_sbuf(__s.rdbuf()), _M_c(traits_type::eof()) { } /// Construct start of streambuf iterator. istreambuf_iterator(streambuf_type* __s) _GLIBCXX_USE_NOEXCEPT : _M_sbuf(__s), _M_c(traits_type::eof()) { } #if __cplusplus >= 201103L istreambuf_iterator& operator=(const istreambuf_iterator&) noexcept = default; #endif /// Return the current character pointed to by iterator. This returns /// streambuf.sgetc(). It cannot be assigned. NB: The result of /// operator*() on an end of stream is undefined. char_type operator*() const { int_type __c = _M_get(); #ifdef _GLIBCXX_DEBUG_PEDANTIC // Dereferencing a past-the-end istreambuf_iterator is a // libstdc++ extension __glibcxx_requires_cond(!_S_is_eof(__c), _M_message(__gnu_debug::__msg_deref_istreambuf) ._M_iterator(*this)); #endif return traits_type::to_char_type(__c); } /// Advance the iterator. Calls streambuf.sbumpc(). istreambuf_iterator& operator++() { __glibcxx_requires_cond(_M_sbuf && (!_S_is_eof(_M_c) || !_S_is_eof(_M_sbuf->sgetc())), _M_message(__gnu_debug::__msg_inc_istreambuf) ._M_iterator(*this)); _M_sbuf->sbumpc(); _M_c = traits_type::eof(); return *this; } /// Advance the iterator. Calls streambuf.sbumpc(). istreambuf_iterator operator++(int) { __glibcxx_requires_cond(_M_sbuf && (!_S_is_eof(_M_c) || !_S_is_eof(_M_sbuf->sgetc())), _M_message(__gnu_debug::__msg_inc_istreambuf) ._M_iterator(*this)); istreambuf_iterator __old = *this; __old._M_c = _M_sbuf->sbumpc(); _M_c = traits_type::eof(); return __old; } // _GLIBCXX_RESOLVE_LIB_DEFECTS // 110 istreambuf_iterator::equal not const // NB: there is also number 111 (NAD) relevant to this function. /// Return true both iterators are end or both are not end. bool equal(const istreambuf_iterator& __b) const { return _M_at_eof() == __b._M_at_eof(); } private: int_type _M_get() const { int_type __ret = _M_c; if (_M_sbuf && _S_is_eof(__ret) && _S_is_eof(__ret = _M_sbuf->sgetc())) _M_sbuf = 0; return __ret; } bool _M_at_eof() const { return _S_is_eof(_M_get()); } static bool _S_is_eof(int_type __c) { const int_type __eof = traits_type::eof(); return traits_type::eq_int_type(__c, __eof); } #if __cplusplus > 201703L && __cpp_lib_concepts friend bool operator==(const istreambuf_iterator& __i, default_sentinel_t __s) { return __i._M_at_eof(); } #endif }; template inline bool operator==(const istreambuf_iterator<_CharT, _Traits>& __a, const istreambuf_iterator<_CharT, _Traits>& __b) { return __a.equal(__b); } template inline bool operator!=(const istreambuf_iterator<_CharT, _Traits>& __a, const istreambuf_iterator<_CharT, _Traits>& __b) { return !__a.equal(__b); } /// Provides output iterator semantics for streambufs. template class ostreambuf_iterator : public iterator { public: // Types: ///@{ /// Public typedefs #if __cplusplus > 201703L using difference_type = ptrdiff_t; #endif typedef _CharT char_type; typedef _Traits traits_type; typedef basic_streambuf<_CharT, _Traits> streambuf_type; typedef basic_ostream<_CharT, _Traits> ostream_type; ///@} template friend typename __gnu_cxx::__enable_if<__is_char<_CharT2>::__value, ostreambuf_iterator<_CharT2> >::__type copy(istreambuf_iterator<_CharT2>, istreambuf_iterator<_CharT2>, ostreambuf_iterator<_CharT2>); private: streambuf_type* _M_sbuf; bool _M_failed; public: #if __cplusplus > 201703L constexpr ostreambuf_iterator() noexcept : _M_sbuf(nullptr), _M_failed(true) { } #endif /// Construct output iterator from ostream. ostreambuf_iterator(ostream_type& __s) _GLIBCXX_USE_NOEXCEPT : _M_sbuf(__s.rdbuf()), _M_failed(!_M_sbuf) { } /// Construct output iterator from streambuf. ostreambuf_iterator(streambuf_type* __s) _GLIBCXX_USE_NOEXCEPT : _M_sbuf(__s), _M_failed(!_M_sbuf) { } /// Write character to streambuf. Calls streambuf.sputc(). ostreambuf_iterator& operator=(_CharT __c) { if (!_M_failed && _Traits::eq_int_type(_M_sbuf->sputc(__c), _Traits::eof())) _M_failed = true; return *this; } /// Return *this. ostreambuf_iterator& operator*() { return *this; } /// Return *this. ostreambuf_iterator& operator++(int) { return *this; } /// Return *this. ostreambuf_iterator& operator++() { return *this; } /// Return true if previous operator=() failed. bool failed() const _GLIBCXX_USE_NOEXCEPT { return _M_failed; } ostreambuf_iterator& _M_put(const _CharT* __ws, streamsize __len) { if (__builtin_expect(!_M_failed, true) && __builtin_expect(this->_M_sbuf->sputn(__ws, __len) != __len, false)) _M_failed = true; return *this; } }; // Overloads for streambuf iterators. template typename __gnu_cxx::__enable_if<__is_char<_CharT>::__value, ostreambuf_iterator<_CharT> >::__type copy(istreambuf_iterator<_CharT> __first, istreambuf_iterator<_CharT> __last, ostreambuf_iterator<_CharT> __result) { if (__first._M_sbuf && !__last._M_sbuf && !__result._M_failed) { bool __ineof; __copy_streambufs_eof(__first._M_sbuf, __result._M_sbuf, __ineof); if (!__ineof) __result._M_failed = true; } return __result; } template typename __gnu_cxx::__enable_if<__is_char<_CharT>::__value, ostreambuf_iterator<_CharT> >::__type __copy_move_a2(_CharT* __first, _CharT* __last, ostreambuf_iterator<_CharT> __result) { const streamsize __num = __last - __first; if (__num > 0) __result._M_put(__first, __num); return __result; } template typename __gnu_cxx::__enable_if<__is_char<_CharT>::__value, ostreambuf_iterator<_CharT> >::__type __copy_move_a2(const _CharT* __first, const _CharT* __last, ostreambuf_iterator<_CharT> __result) { const streamsize __num = __last - __first; if (__num > 0) __result._M_put(__first, __num); return __result; } template typename __gnu_cxx::__enable_if<__is_char<_CharT>::__value, _CharT*>::__type __copy_move_a2(istreambuf_iterator<_CharT> __first, istreambuf_iterator<_CharT> __last, _CharT* __result) { typedef istreambuf_iterator<_CharT> __is_iterator_type; typedef typename __is_iterator_type::traits_type traits_type; typedef typename __is_iterator_type::streambuf_type streambuf_type; typedef typename traits_type::int_type int_type; if (__first._M_sbuf && !__last._M_sbuf) { streambuf_type* __sb = __first._M_sbuf; int_type __c = __sb->sgetc(); while (!traits_type::eq_int_type(__c, traits_type::eof())) { const streamsize __n = __sb->egptr() - __sb->gptr(); if (__n > 1) { traits_type::copy(__result, __sb->gptr(), __n); __sb->__safe_gbump(__n); __result += __n; __c = __sb->underflow(); } else { *__result++ = traits_type::to_char_type(__c); __c = __sb->snextc(); } } } return __result; } template typename __gnu_cxx::__enable_if<__is_char<_CharT>::__value, _CharT*>::__type __copy_n_a(istreambuf_iterator<_CharT> __it, _Size __n, _CharT* __result, bool __strict __attribute__((__unused__))) { if (__n == 0) return __result; __glibcxx_requires_cond(__it._M_sbuf, _M_message(__gnu_debug::__msg_inc_istreambuf) ._M_iterator(__it)); _CharT* __beg = __result; __result += __it._M_sbuf->sgetn(__beg, __n); __glibcxx_requires_cond(!__strict || __result - __beg == __n, _M_message(__gnu_debug::__msg_inc_istreambuf) ._M_iterator(__it)); return __result; } template typename __gnu_cxx::__enable_if<__is_char<_CharT>::__value, istreambuf_iterator<_CharT> >::__type find(istreambuf_iterator<_CharT> __first, istreambuf_iterator<_CharT> __last, const _CharT& __val) { typedef istreambuf_iterator<_CharT> __is_iterator_type; typedef typename __is_iterator_type::traits_type traits_type; typedef typename __is_iterator_type::streambuf_type streambuf_type; typedef typename traits_type::int_type int_type; const int_type __eof = traits_type::eof(); if (__first._M_sbuf && !__last._M_sbuf) { const int_type __ival = traits_type::to_int_type(__val); streambuf_type* __sb = __first._M_sbuf; int_type __c = __sb->sgetc(); while (!traits_type::eq_int_type(__c, __eof) && !traits_type::eq_int_type(__c, __ival)) { streamsize __n = __sb->egptr() - __sb->gptr(); if (__n > 1) { const _CharT* __p = traits_type::find(__sb->gptr(), __n, __val); if (__p) __n = __p - __sb->gptr(); __sb->__safe_gbump(__n); __c = __sb->sgetc(); } else __c = __sb->snextc(); } __first._M_c = __eof; } return __first; } template typename __gnu_cxx::__enable_if<__is_char<_CharT>::__value, void>::__type advance(istreambuf_iterator<_CharT>& __i, _Distance __n) { if (__n == 0) return; __glibcxx_assert(__n > 0); __glibcxx_requires_cond(!__i._M_at_eof(), _M_message(__gnu_debug::__msg_inc_istreambuf) ._M_iterator(__i)); typedef istreambuf_iterator<_CharT> __is_iterator_type; typedef typename __is_iterator_type::traits_type traits_type; typedef typename __is_iterator_type::streambuf_type streambuf_type; typedef typename traits_type::int_type int_type; const int_type __eof = traits_type::eof(); streambuf_type* __sb = __i._M_sbuf; while (__n > 0) { streamsize __size = __sb->egptr() - __sb->gptr(); if (__size > __n) { __sb->__safe_gbump(__n); break; } __sb->__safe_gbump(__size); __n -= __size; if (traits_type::eq_int_type(__sb->underflow(), __eof)) { __glibcxx_requires_cond(__n == 0, _M_message(__gnu_debug::__msg_inc_istreambuf) ._M_iterator(__i)); break; } } __i._M_c = __eof; } /// @} group iterators _GLIBCXX_END_NAMESPACE_VERSION } // namespace #endif