86 lines
2.4 KiB
C++
86 lines
2.4 KiB
C++
/**
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This file is a part of rexy's general purpose library
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Copyright (C) 2020-2022 rexy712
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program 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
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef REXY_FILERD_HPP
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#define REXY_FILERD_HPP
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#ifndef LIBREXY_HEADER_ONLY
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#include <cstdio> //FILE
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#include <cstddef> //size_t
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#include <type_traits> //is_nothrow_constructible
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#include "string.hpp"
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#include "steal.hpp"
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#include "utility.hpp"
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#include "rexy.hpp"
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#include "buffer.hpp"
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#include "string_view.hpp"
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namespace rexy{
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//RAII wrapper for FILE*
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class filerd
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{
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private:
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std::FILE* m_fp = nullptr;
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public:
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constexpr filerd(void)noexcept = default;
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filerd(const char* f, const char* mode = "r")noexcept;
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filerd(const filerd&) = delete;
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constexpr filerd(filerd&& f)noexcept:
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m_fp(exchange(f.m_fp, nullptr)){}
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~filerd(void)noexcept;
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filerd& operator=(const filerd&) = delete;
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constexpr filerd& operator=(filerd&& f)noexcept{
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rexy::swap(m_fp, f.m_fp);
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return *this;
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}
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void reset(std::FILE* fp = nullptr)noexcept;
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std::FILE* release(void)noexcept;
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std::size_t length(void)noexcept;
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std::size_t position(void)const noexcept;
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void rewind(std::size_t pos = 0)noexcept;
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operator std::FILE*(void)noexcept;
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operator const std::FILE*(void)const noexcept;
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std::FILE* get(void)noexcept;
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const std::FILE* get(void)const noexcept;
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operator bool(void)const noexcept;
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std::size_t read(char* dest, std::size_t bytes)noexcept;
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rexy::string read(std::size_t bytes)noexcept;
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rexy::string readln(std::size_t max = 0)noexcept;
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rexy::buffer<char> read_bin(std::size_t bytes)noexcept(std::is_nothrow_constructible<rexy::buffer<char>, char*, std::size_t>::value);
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std::size_t write(const char* c, std::size_t bytes)noexcept;
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std::size_t write(rexy::string_view s)noexcept;
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};
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}
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#else //LIBREXY_HEADER_ONLY
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#error "rexy::filerd is not available when built with header only support"
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#endif //LIBREXY_HEADER_ONLY
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#endif
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