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- #include <grass/gis.h>
- #include <grass/raster.h>
- #include <grass/calc.h>
- /****************************************************************
- null() null values
- ****************************************************************/
- int f_null(int argc, const int *argt, void **args)
- {
- CELL *res = args[0];
- int i;
- if (argc > 0)
- return E_ARG_HI;
- if (argt[0] != CELL_TYPE)
- return E_RES_TYPE;
- for (i = 0; i < columns; i++)
- SET_NULL_C(&res[i]);
- return 0;
- }
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