63e88f80
 Hu Chunming
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// filesystem/string_file.hpp --------------------------------------------------------//
// Copyright Beman Dawes 2015
// Distributed under the Boost Software License, Version 1.0.
// See http://www.boost.org/LICENSE_1_0.txt
// Library home page: http://www.boost.org/libs/filesystem
#ifndef BOOST_FILESYSTEM_STRING_FILE_HPP
#define BOOST_FILESYSTEM_STRING_FILE_HPP
#include <boost/filesystem/config.hpp>
#if !defined(BOOST_FILESYSTEM_DEPRECATED) && !defined(BOOST_FILESYSTEM_ALLOW_DEPRECATED)
#include <boost/config/header_deprecated.hpp>
BOOST_HEADER_DEPRECATED("your own implementation")
#endif
#if !defined(BOOST_FILESYSTEM_NO_DEPRECATED)
#include <cstddef>
#include <limits>
#include <string>
#include <ios>
#include <stdexcept>
#include <boost/cstdint.hpp>
#include <boost/filesystem/path.hpp>
#include <boost/filesystem/fstream.hpp>
#include <boost/filesystem/operations.hpp>
#include <boost/filesystem/detail/header.hpp> // must be the last #include
namespace boost {
namespace filesystem {
BOOST_FILESYSTEM_DETAIL_DEPRECATED("Use file IO streams instead")
inline void save_string_file(path const& p, std::string const& str)
{
filesystem::ofstream file;
file.exceptions(std::ios_base::failbit | std::ios_base::badbit);
file.open(p, std::ios_base::binary);
const std::size_t sz = str.size();
if (BOOST_UNLIKELY(sz > static_cast< boost::uintmax_t >((std::numeric_limits< std::streamsize >::max)())))
BOOST_FILESYSTEM_THROW(std::length_error("String size exceeds max write size"));
file.write(str.c_str(), static_cast< std::streamsize >(sz));
}
BOOST_FILESYSTEM_DETAIL_DEPRECATED("Use file IO streams instead")
inline void load_string_file(path const& p, std::string& str)
{
filesystem::ifstream file;
file.exceptions(std::ios_base::failbit | std::ios_base::badbit);
file.open(p, std::ios_base::binary);
const boost::uintmax_t sz = filesystem::file_size(p);
if (BOOST_UNLIKELY(sz > static_cast< boost::uintmax_t >((std::numeric_limits< std::streamsize >::max)())))
BOOST_FILESYSTEM_THROW(std::length_error("File size exceeds max read size"));
str.resize(static_cast< std::size_t >(sz), '\0');
if (sz > 0u)
file.read(&str[0], static_cast< std::streamsize >(sz));
}
} // namespace filesystem
} // namespace boost
#include <boost/filesystem/detail/footer.hpp>
#endif // !defined(BOOST_FILESYSTEM_NO_DEPRECATED)
#endif // BOOST_FILESYSTEM_STRING_FILE_HPP
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