BOX2D_out()

Datum BOX2D_out

(

PG_FUNCTION_ARGS

)

Definition at line 95 of file lwgeom_box.c.

{
        char tmp[500] = {'B', 'O', 'X', '(', 0}; /* big enough */
        static const int precision = 15;
        char *result;
        int size = 0;
 
        GBOX *box = (GBOX *)PG_GETARG_POINTER(0);
        /* Avoid unaligned access to the gbox struct */
        GBOX box_aligned;
        memcpy(&box_aligned, box, sizeof(GBOX));
 
        size = 4;
        size += lwprint_double(box_aligned.xmin, precision, &tmp[size]);
        tmp[size++] = ' ';
        size += lwprint_double(box_aligned.ymin, precision, &tmp[size]);
        tmp[size++] = ',';
        size += lwprint_double(box_aligned.xmax, precision, &tmp[size]);
        tmp[size++] = ' ';
        size += lwprint_double(box_aligned.ymax, precision, &tmp[size]);
 
        tmp[size++] = ')';
        size += 1;
 
        result = palloc(size + 1); /* +1= null term */
        memcpy(result, tmp, size + 1);
        result[size] = '\0';
 
        PG_RETURN_CSTRING(result);
}

References lwprint_double(), precision, result, GBOX::xmax, GBOX::xmin, GBOX::ymax, and GBOX::ymin.

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