density_config.h File Reference

#include <cstdlib>
#include <type_traits>
#include <utility>

Go to the source code of this file.

Classes
class	basic_default_allocator< PAGE_CAPACITY_AND_ALIGNMENT >

Namespaces
	density

Macros
#define	DENSITY_ASSERT(...)   ((void)(0))
#define	DENSITY_ASSERT_INTERNAL(...)   ((void)(0))
#define	DENSITY_ASSUME(bool_expr, ...)   (void)0
#define	DENSITY_ASSUME_ALIGNED(address, constexpr_alignment)    DENSITY_ASSUME((uintptr_t(address) & ((constexpr_alignment)-1)) == 0)
#define	DENSITY_ASSUME_UINT_ALIGNED(address, constexpr_alignment)    DENSITY_ASSUME(((address) & ((constexpr_alignment)-1)) == 0)
#define	DENSITY_LIKELY(bool_expr)   (bool_expr)
#define	DENSITY_NO_INLINE
#define	DENSITY_CHECKING_ASSERT(bool_expr, ...)   (!(bool_expr) ? std::abort() : (void)0)

Typedefs
using	data_stack_underlying_allocator = basic_default_allocator< default_page_capacity >
template<typename TYPE >
using	optional = builtin_optional< TYPE >

Variables
constexpr size_t	destructive_interference_size = 64
constexpr size_t	default_page_capacity = 1024 * 64
constexpr bool	enable_relaxed_atomics = false

Macro Definition Documentation

#define DENSITY_ASSERT

(

...

)

((void)(0))

Assert used to detect user errors that causes undefined behavior

#define DENSITY_ASSERT_INTERNAL

(

...

)

((void)(0))

Assert used to detect bugs of the library that causes undefined behavior

#define DENSITY_ASSUME	(		bool_expr,
			...
	)		(void)0

Macro that tells an invariant to the compiler as hint for the optimizer.

#define DENSITY_ASSUME_ALIGNED	(		address,
			constexpr_alignment
	)		DENSITY_ASSUME((uintptr_t(address) & ((constexpr_alignment)-1)) == 0)

Macro used to enforce the alignment of a pointer as an invariant.

#define DENSITY_LIKELY

(

bool_expr

)

(bool_expr)

Macro that tells to the compiler that a condition is true in most cases. This is just an hint to the optimizer.

#define DENSITY_NO_INLINE

Macro used in some circumstances to avoid inlining of a function, for example because the call handles a somewhat rare slow path.

#define DENSITY_CHECKING_ASSERT	(		bool_expr,
			...
	)		(!(bool_expr) ? std::abort() : (void)0)

Assert that on failure should cause an halt of the program. Used only locally in this header.