Provide filesystem::path overloads for file streams (LWG 2676, partial)
* include/std/fstream (basic_filebuf::_If_path): New SFINAE helper. (basic_filebuf::open<Path>(const Path&, const ios_base::openmode&)) (basic_ifstream<Path>(const Path&, const ios_base::openmode&)) (basic_ifstream::open<Path>(const Path&, const ios_base::openmode&)) (basic_ofstream<Path>(const Path&, const ios_base::openmode&)) (basic_ofstream::open<Path>(const Path&, const ios_base::openmode&)) (basic_fstream<Path>(const Path&, const ios_base::openmode&)) (basic_fstream::open<Path>(const Path&, const ios_base::openmode&)): New constructors and member functions. * testsuite/27_io/basic_filebuf/open/char/path.cc: New test. * testsuite/27_io/basic_fstream/cons/char/path.cc: New test. * testsuite/27_io/basic_fstream/open/char/path.cc: New test. * testsuite/27_io/basic_ifstream/cons/char/path.cc: New test. * testsuite/27_io/basic_ifstream/open/char/path.cc: New test. * testsuite/27_io/basic_ofstream/cons/char/path.cc: New test. * testsuite/27_io/basic_ofstream/open/char/path.cc: New test. From-SVN: r254148
This commit is contained in:
Jonathan Wakely
Jonathan Wakely
parent
9333319b52
commit
d49f254a6c
9 changed files with 472 additions and 5 deletions
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@ -1,5 +1,22 @@
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2017-10-27 Jonathan Wakely <jwakely@redhat.com>
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* include/std/fstream (basic_filebuf::_If_path): New SFINAE helper.
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(basic_filebuf::open<Path>(const Path&, const ios_base::openmode&))
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(basic_ifstream<Path>(const Path&, const ios_base::openmode&))
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(basic_ifstream::open<Path>(const Path&, const ios_base::openmode&))
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(basic_ofstream<Path>(const Path&, const ios_base::openmode&))
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(basic_ofstream::open<Path>(const Path&, const ios_base::openmode&))
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(basic_fstream<Path>(const Path&, const ios_base::openmode&))
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(basic_fstream::open<Path>(const Path&, const ios_base::openmode&)):
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New constructors and member functions.
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* testsuite/27_io/basic_filebuf/open/char/path.cc: New test.
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* testsuite/27_io/basic_fstream/cons/char/path.cc: New test.
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* testsuite/27_io/basic_fstream/open/char/path.cc: New test.
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* testsuite/27_io/basic_ifstream/cons/char/path.cc: New test.
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* testsuite/27_io/basic_ifstream/open/char/path.cc: New test.
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* testsuite/27_io/basic_ofstream/cons/char/path.cc: New test.
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* testsuite/27_io/basic_ofstream/open/char/path.cc: New test.
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* include/bits/fs_path.h (path::format): Define new enumeration type.
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(path(string_type&&), path<Source>(const Source&))
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(path<InputIterator>(InputIterator, InputIterator))
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@ -216,6 +216,12 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
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}
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}
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#if __cplusplus >= 201703L
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template<typename _Path, typename _Result = _Path, typename _Path2
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= decltype(std::declval<_Path&>().make_preferred().native())>
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using _If_path = enable_if_t<is_same_v<_Path, _Path2>, _Result>;
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#endif // C++17
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public:
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// Constructors/destructor:
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/**
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@ -306,7 +312,20 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
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__filebuf_type*
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open(const std::string& __s, ios_base::openmode __mode)
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{ return open(__s.c_str(), __mode); }
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#endif
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#if __cplusplus >= 201703L
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/**
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* @brief Opens an external file.
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* @param __s The name of the file, as a filesystem::path.
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* @param __mode The open mode flags.
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* @return @c this on success, NULL on failure
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*/
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template<typename _Path>
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_If_path<_Path, __filebuf_type*>
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open(const _Path& __s, ios_base::openmode __mode)
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{ return open(__s.c_str(), __mode); }
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#endif // C++17
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#endif // C++11
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/**
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* @brief Closes the currently associated file.
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@ -516,13 +535,29 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
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this->open(__s, __mode);
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}
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#if __cplusplus >= 201703L
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/**
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* @param Create an input file stream.
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* @param __s filesystem::path specifying the filename.
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* @param __mode Open file in specified mode (see std::ios_base).
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*
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* @c ios_base::in is automatically included in @a __mode.
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*/
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template<typename _Path, typename = _Require<
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is_constructible<__filebuf_type, const _Path&, ios_base::openmode>>>
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basic_ifstream(const _Path& __s,
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ios_base::openmode __mode = ios_base::in)
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: basic_ifstream(__s.c_str(), __mode)
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{ }
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#endif // C++17
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basic_ifstream(const basic_ifstream&) = delete;
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basic_ifstream(basic_ifstream&& __rhs)
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: __istream_type(std::move(__rhs)),
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_M_filebuf(std::move(__rhs._M_filebuf))
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{ __istream_type::set_rdbuf(&_M_filebuf); }
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#endif
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#endif // C++11
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/**
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* @brief The destructor does nothing.
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@ -621,7 +656,23 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
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// 409. Closing an fstream should clear error state
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this->clear();
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}
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#endif
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#if __cplusplus >= 201703L
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/**
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* @brief Opens an external file.
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* @param __s The name of the file, as a filesystem::path.
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* @param __mode The open mode flags.
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*
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* Calls @c std::basic_filebuf::open(__s,__mode|in). If that function
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* fails, @c failbit is set in the stream's error state.
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*/
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template<typename _Path>
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auto
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open(const _Path& __s, ios_base::openmode __mode = ios_base::in)
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-> decltype(_M_filebuf.open(__s, __mode))
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{ open(__s.c_str(), __mode); }
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#endif // C++17
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#endif // C++11
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/**
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* @brief Close the file.
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@ -720,6 +771,23 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
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this->open(__s, __mode);
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}
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#if __cplusplus >= 201703L
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/**
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* @param Create an output file stream.
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* @param __s filesystem::path specifying the filename.
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* @param __mode Open file in specified mode (see std::ios_base).
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*
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* @c ios_base::out | @c ios_base::trunc is automatically included in
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* @a __mode.
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*/
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template<typename _Path, typename = _Require<
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is_constructible<__filebuf_type, const _Path&, ios_base::openmode>>>
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basic_ofstream(const _Path& __s, ios_base::openmode __mode
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= ios_base::out|ios_base::trunc)
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: basic_ofstream(__s.c_str(), __mode)
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{ }
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#endif // C++17
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basic_ofstream(const basic_ofstream&) = delete;
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basic_ofstream(basic_ofstream&& __rhs)
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@ -827,7 +895,23 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
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// 409. Closing an fstream should clear error state
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this->clear();
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}
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#endif
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#if __cplusplus >= 201703L
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/**
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* @brief Opens an external file.
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* @param __s The name of the file, as a filesystem::path.
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* @param __mode The open mode flags.
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*
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* Calls @c std::basic_filebuf::open(__s,__mode|out). If that
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* function fails, @c failbit is set in the stream's error state.
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*/
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template<typename _Path>
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auto
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open(const _Path& __s, ios_base::openmode __mode = ios_base::out)
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-> decltype(_M_filebuf.open(__s, __mode))
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{ open(__s.c_str(), __mode); }
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#endif // C++17
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#endif // C++11
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/**
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* @brief Close the file.
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@ -922,6 +1006,20 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
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this->open(__s, __mode);
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}
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#if __cplusplus >= 201703L
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/**
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* @param Create an input/output file stream.
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* @param __s filesystem::path specifying the filename.
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* @param __mode Open file in specified mode (see std::ios_base).
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*/
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template<typename _Path, typename = _Require<
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is_constructible<__filebuf_type, const _Path&, ios_base::openmode>>>
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basic_fstream(const _Path& __s,
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ios_base::openmode __mode = ios_base::in | ios_base::out)
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: basic_fstream(__s.c_str(), __mode)
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{ }
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#endif // C++17
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basic_fstream(const basic_fstream&) = delete;
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basic_fstream(basic_fstream&& __rhs)
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@ -1029,7 +1127,24 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
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// 409. Closing an fstream should clear error state
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this->clear();
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}
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#endif
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#if __cplusplus >= 201703L
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/**
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* @brief Opens an external file.
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* @param __s The name of the file, as a filesystem::path.
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* @param __mode The open mode flags.
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*
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* Calls @c std::basic_filebuf::open(__s,__mode). If that
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* function fails, @c failbit is set in the stream's error state.
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*/
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template<typename _Path>
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auto
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open(const _Path& __s,
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ios_base::openmode __mode = ios_base::in | ios_base::out)
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-> decltype(_M_filebuf.open(__s, __mode))
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{ open(__s.c_str(), __mode); }
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#endif // C++17
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#endif // C++11
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/**
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* @brief Close the file.
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41
libstdc++-v3/testsuite/27_io/basic_filebuf/open/char/path.cc
Normal file
41
libstdc++-v3/testsuite/27_io/basic_filebuf/open/char/path.cc
Normal file
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@ -0,0 +1,41 @@
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// Copyright (C) 2017 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 3, or (at your option)
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// any later version.
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License along
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// with this library; see the file COPYING3. If not see
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// <http://www.gnu.org/licenses/>.
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// { dg-options "-std=gnu++17 -lstdc++fs" }
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// { dg-do run { target c++17 } }
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// { dg-require-fileio "" }
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// { dg-require-filesystem-ts "" }
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#include <fstream>
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#include <filesystem>
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#include <testsuite_hooks.h>
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const std::filesystem::path filename = "filebuf_members-1.tst";
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void
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test01()
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{
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std::filebuf fb;
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fb.open(filename, std::ios::in);
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VERIFY( fb.is_open() );
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}
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int
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main()
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{
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test01();
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}
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48
libstdc++-v3/testsuite/27_io/basic_fstream/cons/char/path.cc
Normal file
48
libstdc++-v3/testsuite/27_io/basic_fstream/cons/char/path.cc
Normal file
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@ -0,0 +1,48 @@
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// Copyright (C) 2017 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 3, or (at your option)
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// any later version.
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License along
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// with this library; see the file COPYING3. If not see
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// <http://www.gnu.org/licenses/>.
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// { dg-options "-std=gnu++17 -lstdc++fs" }
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// { dg-do run { target c++17 } }
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// { dg-require-fileio "" }
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// { dg-require-filesystem-ts "" }
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#include <fstream>
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#include <filesystem>
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#include <testsuite_hooks.h>
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const std::filesystem::path filename = "ofstream_members-1.tst";
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void
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test01()
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{
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std::fstream f(filename);
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VERIFY( f.is_open() );
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}
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void
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test02()
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{
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std::fstream f(filename, std::ios::out);
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VERIFY( f.is_open() );
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}
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int
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main()
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{
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test01();
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test02();
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}
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50
libstdc++-v3/testsuite/27_io/basic_fstream/open/char/path.cc
Normal file
50
libstdc++-v3/testsuite/27_io/basic_fstream/open/char/path.cc
Normal file
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@ -0,0 +1,50 @@
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// Copyright (C) 2017 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 3, or (at your option)
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// any later version.
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// This library is distributed in the hope that it will be useful,
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// 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.
|
||||
|
||||
// You should have received a copy of the GNU General Public License along
|
||||
// with this library; see the file COPYING3. If not see
|
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// <http://www.gnu.org/licenses/>.
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// { dg-options "-std=gnu++17 -lstdc++fs" }
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// { dg-do run { target c++17 } }
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// { dg-require-fileio "" }
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// { dg-require-filesystem-ts "" }
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#include <fstream>
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#include <filesystem>
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#include <testsuite_hooks.h>
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const std::filesystem::path filename = "ofstream_members-1.tst";
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void
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test01()
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{
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std::fstream f;
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f.open(filename);
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VERIFY( f.is_open() );
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}
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void
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test02()
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{
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std::fstream f;
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f.open(filename, std::ios::in|std::ios::out);
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VERIFY( f.is_open() );
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}
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int
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main()
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{
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test01();
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test02();
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}
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|
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@ -0,0 +1,48 @@
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// Copyright (C) 2017 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.
|
||||
|
||||
// You should have received a copy of the GNU General Public License along
|
||||
// with this library; see the file COPYING3. If not see
|
||||
// <http://www.gnu.org/licenses/>.
|
||||
|
||||
// { dg-options "-std=gnu++17 -lstdc++fs" }
|
||||
// { dg-do run { target c++17 } }
|
||||
// { dg-require-fileio "" }
|
||||
// { dg-require-filesystem-ts "" }
|
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|
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#include <fstream>
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#include <filesystem>
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#include <testsuite_hooks.h>
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|
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const std::filesystem::path filename = "ifstream_members-1.tst";
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|
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void
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test01()
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{
|
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std::ifstream f(filename);
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VERIFY( f.is_open() );
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}
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|
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void
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test02()
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{
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std::ifstream f(filename, std::ios::in);
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VERIFY( f.is_open() );
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}
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||||
|
||||
int
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||||
main()
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||||
{
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||||
test01();
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||||
test02();
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||||
}
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||||
|
|
@ -0,0 +1,50 @@
|
|||
// Copyright (C) 2017 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.
|
||||
|
||||
// You should have received a copy of the GNU General Public License along
|
||||
// with this library; see the file COPYING3. If not see
|
||||
// <http://www.gnu.org/licenses/>.
|
||||
|
||||
// { dg-options "-std=gnu++17 -lstdc++fs" }
|
||||
// { dg-do run { target c++17 } }
|
||||
// { dg-require-fileio "" }
|
||||
// { dg-require-filesystem-ts "" }
|
||||
|
||||
#include <fstream>
|
||||
#include <filesystem>
|
||||
#include <testsuite_hooks.h>
|
||||
|
||||
const std::filesystem::path filename = "ifstream_members-1.tst";
|
||||
|
||||
void
|
||||
test01()
|
||||
{
|
||||
std::ifstream f;
|
||||
f.open(filename);
|
||||
VERIFY( f.is_open() );
|
||||
}
|
||||
|
||||
void
|
||||
test02()
|
||||
{
|
||||
std::ifstream f;
|
||||
f.open(filename, std::ios::in);
|
||||
VERIFY( f.is_open() );
|
||||
}
|
||||
|
||||
int
|
||||
main()
|
||||
{
|
||||
test01();
|
||||
test02();
|
||||
}
|
||||
|
|
@ -0,0 +1,48 @@
|
|||
// Copyright (C) 2017 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.
|
||||
|
||||
// You should have received a copy of the GNU General Public License along
|
||||
// with this library; see the file COPYING3. If not see
|
||||
// <http://www.gnu.org/licenses/>.
|
||||
|
||||
// { dg-options "-std=gnu++17 -lstdc++fs" }
|
||||
// { dg-do run { target c++17 } }
|
||||
// { dg-require-fileio "" }
|
||||
// { dg-require-filesystem-ts "" }
|
||||
|
||||
#include <fstream>
|
||||
#include <filesystem>
|
||||
#include <testsuite_hooks.h>
|
||||
|
||||
const std::filesystem::path filename = "ofstream_members-1.tst";
|
||||
|
||||
void
|
||||
test01()
|
||||
{
|
||||
std::ofstream f(filename);
|
||||
VERIFY( f.is_open() );
|
||||
}
|
||||
|
||||
void
|
||||
test02()
|
||||
{
|
||||
std::ofstream f(filename, std::ios::out);
|
||||
VERIFY( f.is_open() );
|
||||
}
|
||||
|
||||
int
|
||||
main()
|
||||
{
|
||||
test01();
|
||||
test02();
|
||||
}
|
||||
|
|
@ -0,0 +1,50 @@
|
|||
// Copyright (C) 2017 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.
|
||||
|
||||
// You should have received a copy of the GNU General Public License along
|
||||
// with this library; see the file COPYING3. If not see
|
||||
// <http://www.gnu.org/licenses/>.
|
||||
|
||||
// { dg-options "-std=gnu++17 -lstdc++fs" }
|
||||
// { dg-do run { target c++17 } }
|
||||
// { dg-require-fileio "" }
|
||||
// { dg-require-filesystem-ts "" }
|
||||
|
||||
#include <fstream>
|
||||
#include <filesystem>
|
||||
#include <testsuite_hooks.h>
|
||||
|
||||
const std::filesystem::path filename = "ofstream_members-1.tst";
|
||||
|
||||
void
|
||||
test01()
|
||||
{
|
||||
std::ofstream f;
|
||||
f.open(filename);
|
||||
VERIFY( f.is_open() );
|
||||
}
|
||||
|
||||
void
|
||||
test02()
|
||||
{
|
||||
std::ofstream f;
|
||||
f.open(filename, std::ios::out);
|
||||
VERIFY( f.is_open() );
|
||||
}
|
||||
|
||||
int
|
||||
main()
|
||||
{
|
||||
test01();
|
||||
test02();
|
||||
}
|
||||
Loading…
Add table
Reference in a new issue