file_stream_common.h

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#pragma once
 
#include <cstddef>
#include <cstdint>
#include <cstdio>
#include <ios>
 
namespace fs
{
 
enum class file_stream_ownership : std::uint8_t
{
    take_ownership,
    retain_ownership,
};
 
inline constexpr std::ios_base::openmode default_file_read_mode =
    std::ios_base::in | std::ios_base::binary;
 
inline constexpr std::ios_base::openmode default_file_write_mode =
    std::ios_base::out | std::ios_base::binary;
 
namespace file_stream_detail
{
 
constexpr std::size_t default_buffer_size = 64 * 1024;
 
auto stdio_tell64(FILE* file) -> long long;
auto stdio_seek64(FILE* file, long long offset, int origin) -> int;
auto stdio_file_size(FILE* file) -> long long;
 
auto openmode_to_stdio_mode(std::ios_base::openmode mode, char (&out)[4]) -> bool;
 
} // namespace file_stream_detail
 
} // namespace fs