/usr/lib/grass74/include/grass/calc.h is in grass-dev 7.4.0-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 | #ifndef GRASS_CALC_H
#define GRASS_CALC_H
#include <grass/gis.h>
#include <grass/raster.h>
typedef int func_t(int argc, const int *argt, void **args);
typedef int args_t(int argc, int *argt);
enum {
E_ARG_LO = 1,
E_ARG_HI = 2,
E_ARG_TYPE = 3,
E_RES_TYPE = 4,
E_INV_TYPE = 5,
E_ARG_NUM = 6,
E_WTF = 99
};
typedef struct func_desc
{
const char *name;
args_t *check_args;
func_t *func;
} func_desc;
#define IS_NULL_C(x) (Rast_is_c_null_value((x)))
#define IS_NULL_F(x) (Rast_is_f_null_value((x)))
#define IS_NULL_D(x) (Rast_is_d_null_value((x)))
#define SET_NULL_C(x) (Rast_set_c_null_value((x),1))
#define SET_NULL_F(x) (Rast_set_f_null_value((x),1))
#define SET_NULL_D(x) (Rast_set_d_null_value((x),1))
extern volatile int floating_point_exception;
extern volatile int floating_point_exception_occurred;
extern int columns;
extern func_desc calc_func_descs[];
#include <grass/defs/calc.h>
#endif
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