Utility Math & Helpers

Quality-of-life macros. Uses type-safe GCC/Clang extensions when available. More...

Macros
#define	INT_FROM_PTR(ptr)
	Safely casts a pointer to an integer of pointer size.
#define	PTR_FROM_INT(type, val)
	Safely casts a pointer-sized integer back to a specific pointer type.
#define	ARRAY_SIZE(arr)
	Calculates the number of elements in a static array.
#define	MIN(a, b)
#define	MAX(a, b)
#define	CLAMP(val, min, max)
#define	SWAP(type, a, b)

Detailed Description

Quality-of-life macros. Uses type-safe GCC/Clang extensions when available.

Macro Definition Documentation

ARRAY_SIZE

#define ARRAY_SIZE

(

arr

)

Value:

(sizeof(arr) / sizeof((arr)[0]))

Calculates the number of elements in a static array.

Definition at line 180 of file macros.h.

CLAMP

#define CLAMP	(		val,
			min,
			max )

Value:

(((val) < (min)) ? (min) : ((val) > (max)) ? (max) : (val))

Definition at line 228 of file macros.h.

INT_FROM_PTR

#define INT_FROM_PTR

(

ptr

)

Value:

((uintptr_t)(ptr))

Safely casts a pointer to an integer of pointer size.

Definition at line 175 of file macros.h.

MAX

#define MAX	(		a,
			b )

Value:

(((a) > (b)) ? (a) : (b))

Definition at line 227 of file macros.h.

MIN

#define MIN	(		a,
			b )

Value:

(((a) < (b)) ? (a) : (b))

Definition at line 226 of file macros.h.

PTR_FROM_INT

#define PTR_FROM_INT	(		type,
			val )

Value:

((type *)(uintptr_t)(val))

Safely casts a pointer-sized integer back to a specific pointer type.

Definition at line 177 of file macros.h.

SWAP

#define SWAP	(		type,
			a,
			b )

Value:

do {                                                                               \
    type _tmp = (a);                                                           \
    (a)   = (b);                                                           \
    (b)   = _tmp;                                                          \
} while (0)

Definition at line 229 of file macros.h.