🛠️🐜 Antkeeper superbuild with dependencies included
https://antkeeper.com
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
74 lines
2.1 KiB
74 lines
2.1 KiB
#ifndef AL_FSTREAM_H
|
|
#define AL_FSTREAM_H
|
|
|
|
#ifdef _WIN32
|
|
|
|
#define WIN32_LEAN_AND_MEAN
|
|
#include <windows.h>
|
|
|
|
#include <array>
|
|
#include <string>
|
|
#include <fstream>
|
|
|
|
|
|
namespace al {
|
|
|
|
// Windows' std::ifstream fails with non-ANSI paths since the standard only
|
|
// specifies names using const char* (or std::string). MSVC has a non-standard
|
|
// extension using const wchar_t* (or std::wstring?) to handle Unicode paths,
|
|
// but not all Windows compilers support it. So we have to make our own istream
|
|
// that accepts UTF-8 paths and forwards to Unicode-aware I/O functions.
|
|
class filebuf final : public std::streambuf {
|
|
std::array<char_type,4096> mBuffer;
|
|
HANDLE mFile{INVALID_HANDLE_VALUE};
|
|
|
|
int_type underflow() override;
|
|
pos_type seekoff(off_type offset, std::ios_base::seekdir whence, std::ios_base::openmode mode) override;
|
|
pos_type seekpos(pos_type pos, std::ios_base::openmode mode) override;
|
|
|
|
public:
|
|
filebuf() = default;
|
|
~filebuf() override;
|
|
|
|
bool open(const wchar_t *filename, std::ios_base::openmode mode);
|
|
bool open(const char *filename, std::ios_base::openmode mode);
|
|
|
|
bool is_open() const noexcept { return mFile != INVALID_HANDLE_VALUE; }
|
|
|
|
void close();
|
|
};
|
|
|
|
// Inherit from std::istream to use our custom streambuf
|
|
class ifstream final : public std::istream {
|
|
filebuf mStreamBuf;
|
|
|
|
public:
|
|
ifstream(const wchar_t *filename, std::ios_base::openmode mode = std::ios_base::in);
|
|
ifstream(const std::wstring &filename, std::ios_base::openmode mode = std::ios_base::in)
|
|
: ifstream(filename.c_str(), mode) { }
|
|
ifstream(const char *filename, std::ios_base::openmode mode = std::ios_base::in);
|
|
ifstream(const std::string &filename, std::ios_base::openmode mode = std::ios_base::in)
|
|
: ifstream(filename.c_str(), mode) { }
|
|
~ifstream() override;
|
|
|
|
bool is_open() const noexcept { return mStreamBuf.is_open(); }
|
|
|
|
void close() { mStreamBuf.close(); }
|
|
};
|
|
|
|
} // namespace al
|
|
|
|
#else /* _WIN32 */
|
|
|
|
#include <fstream>
|
|
|
|
namespace al {
|
|
|
|
using filebuf = std::filebuf;
|
|
using ifstream = std::ifstream;
|
|
|
|
} // namespace al
|
|
|
|
#endif /* _WIN32 */
|
|
|
|
#endif /* AL_FSTREAM_H */
|