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#include "Utils.hpp"
#ifdef _WIN32
# include <Windows.h>
#endif
#ifdef _WIN32
# define BRUSSEL_MODE_STRING(string) L##string
#else
# define BRUSSEL_MODE_STRING(string) string
#endif
#if _WIN32
using FopenModeString = const wchar_t*;
#else
using FopenModeString = const char*;
#endif
static FopenModeString GetModeString(Utils::IoMode mode, bool binary) {
using namespace Utils;
if (binary) {
switch (mode) {
case Read: return BRUSSEL_MODE_STRING("r");
case WriteTruncate: return BRUSSEL_MODE_STRING("w");
case WriteAppend: return BRUSSEL_MODE_STRING("a");
}
} else {
switch (mode) {
case Read: return BRUSSEL_MODE_STRING("rb");
case WriteTruncate: return BRUSSEL_MODE_STRING("wb");
case WriteAppend: return BRUSSEL_MODE_STRING("ab");
}
}
return nullptr;
}
FILE* Utils::OpenCstdioFile(const std::filesystem::path& path, IoMode mode, bool binary) {
#ifdef _WIN32
// std::filesystem::path::c_str() returns `const wchar_t*` under Windows, because NT uses UTF-16 natively
// NOTE: _wfopen() only affects the type of path parameter, otherwise the file stream created is identical to the one by fopen()
return _wfopen(path.c_str(), ::GetModeString(mode, binary));
#else
return fopen(path.c_str(), ::GetModeString(mode, binary));
#endif
}
FILE* Utils::OpenCstdioFile(const char* path, IoMode mode, bool binary) {
#ifdef _WIN32
// On Windows, fopen() accepts ANSI codepage encoded path, convert our UTF-8 string to UTF-16 to ensure that no matter what the locale is, the path continues to work
WCHAR platformPath[MAX_PATH];
if (MultiByteToWideChar(CP_UTF8, 0, path, -1, platformPath, MAX_PATH) == 0) {
return nullptr;
}
return _wfopen(platformPath, ::GetModeString(mode, binary));
#else
return fopen(path, ::GetModeString(mode, binary));
#endif
}
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