Compiler definitions#

__has_builtin#

#define __has_builtin

(x)

__ASM#

#define __ASM

__asm

__STATIC_FORCEINLINE#

#define __STATIC_FORCEINLINE

__attribute__((always_inline)) static inline

__NO_RETURN#

#define __NO_RETURN

__attribute__((__noreturn__))

__USED#

#define __USED

__attribute__((used))

__WEAK#

#define __WEAK

__attribute__((weak))

__PACKED#

#define __PACKED

__attribute__((packed, aligned(1)))

__PACKED_STRUCT#

#define __PACKED_STRUCT

struct __attribute__((packed, aligned(1)))

__PACKED_UNION#

#define __PACKED_UNION

union __attribute__((packed, aligned(1)))

__ALIGNED#

#define __ALIGNED

(x)

__RESTRICT#

#define __RESTRICT

__restrict

__I#

#define __I

volatile const

Defines 'read only' permissions.

__O#

#define __O

volatile

Defines 'write only' permissions.

__IO#

#define __IO

volatile

Defines 'read / write' permissions.

__IM#

#define __IM

volatile const

Defines 'read only' structure member permissions.

__OM#

#define __OM

volatile

Defines 'write only' structure member permissions.

__IOM#

#define __IOM

volatile

Defines 'read / write' structure member permissions.