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Macros
#define	NULL ((void *) 0)

#define	offsetof(type, field) ((size_t) (&((type *) 0)->field))

#define	container_of(ptr, type, member)

#define	likely(expr) (!!(expr))

#define	unlikely(expr) (!!(expr))

#define	min(a, b) (((a) < (b)) ? (a) : (b))

#define	max(a, b) (((a) > (b)) ? (a) : (b))

#define	clamp(v, a, b) min(max(a, v), b)

#define	ifloor(x) ((x) > 0 ? (int) (x) : (int) ((x) -0.9999999999))

#define	iround(x) ((x) > 0 ? (int) ((x) + 0.5) : (int) ((x) -0.5))

#define	iceil(x) ((x) > 0 ? (int) ((x) + 0.9999999999) : (int) (x))

#define	idiv255(x) ((((int) (x) + 1) * 257) >> 16)

Macro Definition Documentation

◆ clamp

#define clamp	(	v,
		a,
		b
	)	min(max(a, v), b)

◆ container_of

#define container_of	(	ptr,
		type,
		member
	)

Value:

    ({                                                       \
        const typeof(((type *) 0)->member) *__mptr = (ptr);  \
        (type *) ((char *) __mptr - offsetof(type, member)); \
    })

◆ iceil

#define iceil ( x ) ((x) > 0 ? (int) ((x) + 0.9999999999) : (int) (x))

◆ idiv255

#define idiv255 ( x ) ((((int) (x) + 1) * 257) >> 16)

◆ ifloor

#define ifloor ( x ) ((x) > 0 ? (int) (x) : (int) ((x) -0.9999999999))

◆ iround

#define iround ( x ) ((x) > 0 ? (int) ((x) + 0.5) : (int) ((x) -0.5))

◆ likely

#define likely ( expr ) (!!(expr))

◆ max

#define max	(	a,
		b
	)	(((a) > (b)) ? (a) : (b))

◆ min

#define min	(	a,
		b
	)	(((a) < (b)) ? (a) : (b))

◆ NULL

#define NULL ((void *) 0)

◆ offsetof

#define offsetof	(	type,
		field
	)	((size_t) (&((type *) 0)->field))

◆ unlikely

#define unlikely ( expr ) (!!(expr))

Macros