#ifndef __NR_MACROS_H__

#define __NR_MACROS_H__

#include <math.h>

#if HAVE_STDLIB_H

#include <stdlib.h>

#endif

#include <assert.h>

#ifndef TRUE

#define TRUE (!0)

#endif

#ifndef FALSE

#define FALSE 0

#endif

#ifndef MAX

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

#endif

#ifndef MIN

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

#endif

#ifndef CLAMP

# define CLAMP(v,a,b) \

(assert (a <= b), \

((v) >= (a)) \

? (((v) > (b)) \

? (b) \

: (v)) \

: (a))

#endif

#define NR_DF_TEST_CLOSE(a,b,e) (fabs ((a) - (b)) <= (e))

#define NR_MATRIX_DF_TEST_TRANSFORM_CLOSE(a,b,e) (NR_DF_TEST_CLOSE ((*(a))[0], (*(b))[0], e) && \

NR_DF_TEST_CLOSE ((*(a))[1], (*(b))[1], e) && \

NR_DF_TEST_CLOSE ((*(a))[2], (*(b))[2], e) && \

NR_DF_TEST_CLOSE ((*(a))[3], (*(b))[3], e))

#define NR_MATRIX_DF_TEST_TRANSLATE_CLOSE(a,b,e) (NR_DF_TEST_CLOSE ((*(a))[4], (*(b))[4], e) && \

NR_DF_TEST_CLOSE ((*(a))[5], (*(b))[5], e))

#define NR_MATRIX_DF_TEST_CLOSE(a,b,e) (NR_MATRIX_DF_TEST_TRANSLATE_CLOSE (a, b, e) && \

NR_MATRIX_DF_TEST_TRANSFORM_CLOSE (a, b, e))

#define NR_RECT_DFLS_TEST_EMPTY(a) (((a)->x0 >= (a)->x1) || ((a)->y0 >= (a)->y1))

#define NR_RECT_DFLS_TEST_INTERSECT(a,b) (((a)->x0 < (b)->x1) && ((a)->x1 > (b)->x0) && ((a)->y0 < (b)->y1) && ((a)->y1 > (b)->y0))

#define NR_RECT_DF_POINT_DF_TEST_INSIDE(r,p) (((p)->x >= (r)->x0) && ((p)->x < (r)->x1) && ((p)->y >= (r)->y0) && ((p)->y < (r)->y1))

#define NR_RECT_LS_POINT_LS_TEST_INSIDE(r,p) (((p)->x >= (r)->x0) && ((p)->x < (r)->x1) && ((p)->y >= (r)->y0) && ((p)->y < (r)->y1))

#define NR_MATRIX_D_TO_DOUBLE(m) ((m)->c)

#define NR_MATRIX_D_FROM_DOUBLE(d) ((NRMatrix *) &(d)[0])

#endif