libcxx/include/__ostream/put_character_sequence.h

   1 //===---------------------------------------------------------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===---------------------------------------------------------------------===//
   8
   9 #ifndef _LIBCPP___OSTREAM_PUT_CHARACTER_SEQUENCE_H
  10 #define _LIBCPP___OSTREAM_PUT_CHARACTER_SEQUENCE_H
  11
  12 #include <__config>
  13
  14 #if _LIBCPP_HAS_LOCALIZATION
  15
  16 #  include <__cstddef/size_t.h>
  17 #  include <__fwd/ostream.h>
  18 #  include <__iterator/ostreambuf_iterator.h>
  19 #  include <__locale_dir/pad_and_output.h>
  20 #  include <ios>
  21
  22 #  if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
  23 #    pragma GCC system_header
  24 #  endif
  25
  26 _LIBCPP_BEGIN_NAMESPACE_STD
  27
  28 template <class _CharT, class _Traits>
  29 _LIBCPP_HIDE_FROM_ABI basic_ostream<_CharT, _Traits>&
  30 __put_character_sequence(basic_ostream<_CharT, _Traits>& __os, const _CharT* __str, size_t __len) {
  31 #  if _LIBCPP_HAS_EXCEPTIONS
  32   try {
  33 #  endif // _LIBCPP_HAS_EXCEPTIONS
  34     typename basic_ostream<_CharT, _Traits>::sentry __s(__os);
  35     if (__s) {
  36       typedef ostreambuf_iterator<_CharT, _Traits> _Ip;
  37       if (std::__pad_and_output(
  38               _Ip(__os),
  39               __str,
  40               (__os.flags() & ios_base::adjustfield) == ios_base::left ? __str + __len : __str,
  41               __str + __len,
  42               __os,
  43               __os.fill())
  44               .failed())
  45         __os.setstate(ios_base::badbit | ios_base::failbit);
  46     }
  47 #  if _LIBCPP_HAS_EXCEPTIONS
  48   } catch (...) {
  49     __os.__set_badbit_and_consider_rethrow();
  50   }
  51 #  endif // _LIBCPP_HAS_EXCEPTIONS
  52   return __os;
  53 }
  54
  55 _LIBCPP_END_NAMESPACE_STD
  56
  57 #endif // _LIBCPP_HAS_LOCALIZATION
  58
  59 #endif // _LIBCPP___OSTREAM_PUT_CHARACTER_SEQUENCE_H