platform.h File Reference

Platform flags, packing macros and export markers. More...

#include <bit>
#include <cstdint>

Go to the source code of this file.

Namespaces
namespace	rex
namespace	rex::platform

Macros
#define	REX_PLATFORM_WIN32   1
#define	REX_PLATFORM_MAC   0
#define	REX_PLATFORM_ANDROID   0
#define	REX_PLATFORM_GNU_LINUX   0
#define	REX_PLATFORM_LINUX   0
#define	REX_ARCH_AMD64   1
#define	REX_PACKED_STRUCT(name, value)
#define	REX_PACKED_STRUCT_ANONYMOUS(value)
#define	REX_PACKED_UNION(name, value)
#define	REX_XSTRINGIFY(x)
#define	REX_STRINGIFY(x)
#define	REX_MUSTTAIL
#define	REX_API   __attribute__((visibility("default")))
#define	REX_PPC_API   __attribute__((visibility("default")))
#define	REX_APU_API   __attribute__((visibility("default")))
#define	REX_HID_API   __attribute__((visibility("default")))
#define	REX_GPU_API   __attribute__((visibility("default")))
#define	REX_UI_API   __attribute__((visibility("default")))
#define	REX_APP_API   __attribute__((visibility("default")))
#define	REX_KERNEL_API   __attribute__((visibility("default")))
#define	REX_XAM_API   __attribute__((visibility("default")))

Variables
constexpr bool	rex::platform::kWindows = REX_PLATFORM_WIN32
constexpr bool	rex::platform::kLinux = REX_PLATFORM_LINUX
constexpr bool	rex::platform::kMac = REX_PLATFORM_MAC
constexpr bool	rex::platform::kPosix = kLinux || kMac
constexpr char	rex::platform::kPathSeparator = '/'

Detailed Description

Platform flags, packing macros and export markers.

Copyright

Copyright (c) 2026 Tom Clay tomc@.nosp@m.tcte.nosp@m.chstu.nosp@m.ff.c.nosp@m.om All rights reserved.

License

BSD 3-Clause License See LICENSE file in the project root for full license text.

Remarks

Derived from Xenia's xenia/base/platform.h (Ben Vanik, 2020).

Macro Definition Documentation

REX_API

#define REX_API   __attribute__((visibility("default")))

Marks a declaration that rexbase exports.

class REX_API Clock;
REX_API void Break();

REX_APP_API

#define REX_APP_API   __attribute__((visibility("default")))

Marks a declaration that rexapp exports.

class REX_APP_API App;

REX_APU_API

#define REX_APU_API   __attribute__((visibility("default")))

Marks a declaration that rexapu exports.

REX_APU_API class AudioSettings;

REX_GPU_API

#define REX_GPU_API   __attribute__((visibility("default")))

Marks a declaration that rexgpu exports.

REX_GPU_API class GraphicsSettings;

REX_HID_API

#define REX_HID_API   __attribute__((visibility("default")))

Marks a declaration that rexhid exports.

REX_HID_API class InputSettings;

REX_KERNEL_API

#define REX_KERNEL_API   __attribute__((visibility("default")))

Marks a declaration that rexkernel exports.

class REX_KERNEL_API GuestAddressSpace;
REX_KERNEL_API std::span<const ExportEntry> Exports(ExportModule module);

REX_MUSTTAIL

#define REX_MUSTTAIL

Makes a return statement a guaranteed tail call where the compiler supports it.

REX_PACKED_STRUCT

#define REX_PACKED_STRUCT	(		name,
			value )

Value:

REX_DETAIL_PACKED_SCOPE(struct name value)

Declares a struct with 1 byte packing.

Parameters

name	An identifier, pasted after struct.
value	Braced member list.

REX_PACKED_STRUCT(Header, {
  u8 tag;
  u32 size;
})

REX_PACKED_STRUCT_ANONYMOUS

#define REX_PACKED_STRUCT_ANONYMOUS

(

value

)

Value:

REX_DETAIL_PACKED_SCOPE(struct value)

Declares an unnamed struct with 1 byte packing.

Parameters

value

Braced member list.

REX_PACKED_STRUCT_ANONYMOUS({
  u8 tag;
  u32 size;
})

REX_PACKED_UNION

#define REX_PACKED_UNION	(		name,
			value )

Value:

REX_DETAIL_PACKED_SCOPE(union name value)

Declares a union with 1 byte packing.

Parameters

value

Braced member list.

REX_PACKED_UNION(Word, {
  u32 value;
  u8 bytes[4];
})

REX_PLATFORM_MAC

#define REX_PLATFORM_MAC   0

Each REX_PLATFORM_ flag not set above is 0, so it works in preprocessor conditions and static_assert.

REX_PPC_API

#define REX_PPC_API   __attribute__((visibility("default")))

Marks a declaration that rexppc exports.

REX_PPC_API void AttachMMIO(MMIOBlock block, const MMIORecipient& recipient);

REX_STRINGIFY

#define REX_STRINGIFY

(

x

)

Value:

REX_XSTRINGIFY(x)

Expands the argument, then turns it into a string literal.

REX_STRINGIFY(__LINE__)

REX_UI_API

#define REX_UI_API   __attribute__((visibility("default")))

Marks a declaration that rexui exports.

REX_UI_API class UISettings;

REX_XAM_API

#define REX_XAM_API   __attribute__((visibility("default")))

Marks a declaration that rexxam exports.

class REX_XAM_API XAMApplet;

REX_XSTRINGIFY

#define REX_XSTRINGIFY

(

x

)

Value:

#x

Turns the argument into a string literal without expanding it first.

REX_XSTRINGIFY(__LINE__)