array_range()

static int array_range ( int  min, int  max, int  step, int **  range, uint32_t *  len  )

static

Definition at line 96 of file raster2pgsql.c.

                                                                    {
        int i = 0;
        int j = 0;
 
        step = abs(step);
        *len = (uint32_t) ((abs(max - min) + 1 + (step / 2)) / step);
        *range = rtalloc(sizeof(int) * *len);
 
        if (min < max) {
                for (i = min, j = 0; i <= max; i += step, j++)
                        (*range)[j] = i;
        }
        else if (max < min) {
                if (step > 0) step *= -1;
                for (i = min, j = 0; i >= max; i += step, j++)
                        (*range)[j] = i;
        }
        else if (min == max) {
                (*range)[0] = min;
        }
        else {
                *len = 0;
                *range = NULL;
                return 0;
        }
 
        return 1;
}

References rtalloc().

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