mirror of
https://github.com/gbdev/rgbds.git
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93 lines
2.9 KiB
C++
93 lines
2.9 KiB
C++
// SPDX-License-Identifier: MIT
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#ifndef RGBDS_PLATFORM_HPP
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#define RGBDS_PLATFORM_HPP
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// MingGW and Cygwin may need POSIX functions which are not standard C explicitly enabled
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// Make sure to keep this before any system header!
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#if (defined(__MINGW32__) || defined(__CYGWIN__)) && !defined(_POSIX_C_SOURCE)
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#define _POSIX_C_SOURCE 200809L
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#endif
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// MSVC doesn't have str(n)casecmp, use a suitable replacement
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#ifdef _MSC_VER
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#include <string.h> // IWYU pragma: export
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#define strcasecmp _stricmp
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#define strncasecmp _strnicmp
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#else
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#include <strings.h> // IWYU pragma: export
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#endif
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// MSVC prefixes the names of S_* macros with underscores,
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// and doesn't define any S_IS* macros; define them ourselves
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#ifdef _MSC_VER
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#define S_IFMT _S_IFMT
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#define S_IFDIR _S_IFDIR
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#define S_ISDIR(mode) (((mode) & (S_IFMT)) == S_IFDIR)
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#endif
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// MSVC doesn't use POSIX types or defines for `read`
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#ifdef _MSC_VER
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#include <io.h> // IWYU pragma: export
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#define STDIN_FILENO 0
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#define STDOUT_FILENO 1
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#define STDERR_FILENO 2
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#define ssize_t int
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#define SSIZE_MAX INT_MAX
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#define isatty _isatty
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#else
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#include <fcntl.h> // IWYU pragma: export
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#include <limits.h> // IWYU pragma: export
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#include <unistd.h> // IWYU pragma: export
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#endif
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// MSVC uses a different name for O_RDWR, and needs an additional _O_BINARY flag
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#ifdef _MSC_VER
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#include <fcntl.h> // IWYU pragma: export
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#define O_RDWR _O_RDWR
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#define S_ISREG(field) ((field) & (_S_IFREG))
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#define O_BINARY _O_BINARY
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#define O_TEXT _O_TEXT
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#elif !defined(O_BINARY) // Cross-compilers define O_BINARY
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#define O_BINARY 0 // POSIX says we shouldn't care!
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#define O_TEXT 0 // Assume that it's not defined either
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#endif // _MSC_VER
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// MSVC doesn't have POSIX `ftruncate`, use a suitable replacement
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#if defined(_MSC_VER)
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#include <io.h> // IWYU pragma: export
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#define ftruncate _chsize_s
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#endif
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// Windows has stdin and stdout open as text by default, which we may not want
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#if defined(_MSC_VER) || defined(__MINGW32__)
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#include <io.h> // IWYU pragma: export
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#define setmode(fd, mode) _setmode(fd, mode)
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#else
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#define setmode(fd, mode) (0)
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#endif
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// Apple has deprecated `sprintf` since Xcode 14 (for macOS 13), but we use it solely in
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// contexts where both the size of the buffer *and* max size of the printed string are
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// known statically, which GCC thus checks for.
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#ifdef __APPLE__
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#define sprintf_to_array(array, ...) \
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do { \
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static_assert( \
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std::is_array_v<decltype(array)>, "Only use this macro to print to an array!" \
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); \
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snprintf(array, sizeof(array), __VA_ARGS__); \
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} while (0)
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#else
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#define sprintf_to_array(array, ...) \
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do { \
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static_assert( \
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std::is_array_v<decltype(array)>, "Only use this macro to print to an array!" \
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); \
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sprintf(array, __VA_ARGS__); \
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} while (0)
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#endif
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#endif // RGBDS_PLATFORM_HPP
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