#define Rast_is_d_null_value(dcellVal)
#define Rast_is_f_null_value(fcellVal)
void Rast_set_f_null_value(FCELL *, int)
To set a number of FCELL raster values to NULL.
int Rast3d_is_null_value_num(const void *n, int type)
void Rast3d_set_null_value(void *c, int nofElts, int type)
Fills the vector pointed to by c with nofElts NULL-values of type.
void Rast_set_d_null_value(DCELL *, int)
To set a number of DCELL raster values to NULL.