Compiler.h File Reference

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Macros
#define	GCC_MAKE_VERSION(major, minor, patchlevel)   ((major) * 10000 + (minor) * 100 + patchlevel)
#define	GCC_VERSION   0
#define	CLANG_VERSION   0
#define	GCC_CHECK_VERSION(major, minor)
#define	CLANG_OR_GCC_VERSION(major, minor)   (CLANG_VERSION || GCC_CHECK_VERSION(major, minor))
#define	GCC_OLDER_THAN(major, minor)
#define	gcc_const
#define	gcc_deprecated
#define	gcc_may_alias
#define	gcc_malloc
#define	gcc_noreturn
#define	gcc_packed
#define	gcc_printf(a, b)
#define	gcc_pure
#define	gcc_sentinel
#define	gcc_unused
#define	gcc_warn_unused_result
#define	gcc_nonnull(...)
#define	gcc_nonnull_all
#define	gcc_likely(x)   (x)
#define	gcc_unlikely(x)   (x)
#define	gcc_aligned(n)
#define	gcc_visibility_hidden
#define	gcc_visibility_default
#define	gcc_always_inline   inline
#define	gcc_hot
#define	gcc_cold
#define	gcc_flatten
#define	gcc_restrict   restrict
#define	__has_feature(x)   0
#define	gcc_unused_field
#define	gcc_unreachable()

Macro Definition Documentation

GCC_MAKE_VERSION

#define GCC_MAKE_VERSION	(		major,
			minor,
			patchlevel
	)		((major) * 10000 + (minor) * 100 + patchlevel)

GCC_VERSION

#define GCC_VERSION   0

CLANG_VERSION

#define CLANG_VERSION   0

GCC_CHECK_VERSION

#define GCC_CHECK_VERSION	(		major,
			minor
	)

Value:

(!CLANG_VERSION && \
   GCC_VERSION >= GCC_MAKE_VERSION(major, minor, 0))

Are we building with the specified version of gcc (not clang or any other compiler) or newer?

CLANG_OR_GCC_VERSION

#define CLANG_OR_GCC_VERSION	(		major,
			minor
	)		(CLANG_VERSION || GCC_CHECK_VERSION(major, minor))

Are we building with clang (any version) or at least the specified gcc version?

GCC_OLDER_THAN

#define GCC_OLDER_THAN	(		major,
			minor
	)

Value:

(GCC_VERSION && !CLANG_VERSION && \
   GCC_VERSION < GCC_MAKE_VERSION(major, minor, 0))

Are we building with gcc (not clang or any other compiler) and a version older than the specified one?

gcc_const

#define gcc_const

gcc_deprecated

#define gcc_deprecated

gcc_may_alias

#define gcc_may_alias

gcc_malloc

#define gcc_malloc

gcc_noreturn

#define gcc_noreturn

gcc_packed

#define gcc_packed

gcc_printf

#define gcc_printf	(		a,
			b
	)

gcc_pure

#define gcc_pure

gcc_sentinel

#define gcc_sentinel

gcc_unused

#define gcc_unused

gcc_warn_unused_result

#define gcc_warn_unused_result

gcc_nonnull

#define gcc_nonnull

(

...

)

gcc_nonnull_all

#define gcc_nonnull_all

gcc_likely

#define gcc_likely

(

x

)

(x)

gcc_unlikely

#define gcc_unlikely

(

x

)

(x)

gcc_aligned

#define gcc_aligned

(

n

)

gcc_visibility_hidden

#define gcc_visibility_hidden

gcc_visibility_default

#define gcc_visibility_default

gcc_always_inline

#define gcc_always_inline   inline

gcc_hot

#define gcc_hot

gcc_cold

#define gcc_cold

gcc_flatten

#define gcc_flatten

gcc_restrict

#define gcc_restrict   restrict

__has_feature

#define __has_feature

(

x

)

0

gcc_unused_field

#define gcc_unused_field

gcc_unreachable

#define gcc_unreachable

(

)