第四篇 ARM C 高效编程 - 多条件判断

typedef struct point {
	uint32_t x;
	uint32_t y;
} point_t;

typedef struct rect {
	uint32_t x;
	uint32_t x_max;
} rect_t;

uint32_t x_in_rect(point_t p, rect_t *r)
{
	return (p.x >= r->x && p.x < r->x_max);
}

uint32_t x_in_rect1(point_t p, rect_t *r)
{
	return (uint32_t)(p.x - r->x) <  r->x_max;
}