zero_cell.c

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#include <grass/gis.h>


int G_zero_cell_buf(CELL * buf)
{
    int i = G_window_cols();

    while (i--)
        *buf++ = 0;

    return 0;
}


int G_zero_raster_buf(void *rast, RASTER_MAP_TYPE data_type)
{
    int i;
    unsigned char *ptr;

    /* assuming that the size of unsigned char is 1 byte */
    i = G_window_cols() * G_raster_size(data_type);
    ptr = (unsigned char *)rast;

    while (i--)
        *ptr++ = 0;

    return 0;
}