entomb();

        entomb(powc);

bool entomb(void);

bool entomb(int powc);

bool entomb(void)

bool entomb(int powc)

    int loopy = 0;              // general purpose loop variable {dlb}
    bool proceed = false;       // loop management varaiable {dlb}
    int which_trap = 0;         // used in clearing out certain traps {dlb}
    char srx = 0, sry = 0;
    char number_built = 0;

    int number_built = 0;

    FixedVector < unsigned char, 8 > safe_to_overwrite;
    // hack - passing chars through '...' promotes them to ints, which
    // barfs under gcc in fixvec.h.  So don't.
    safe_to_overwrite[0] = DNGN_FLOOR;
    safe_to_overwrite[1] = DNGN_SHALLOW_WATER;
    safe_to_overwrite[2] = DNGN_OPEN_DOOR;
    safe_to_overwrite[3] = DNGN_TRAP_MECHANICAL;
    safe_to_overwrite[4] = DNGN_TRAP_MAGICAL;
    safe_to_overwrite[5] = DNGN_TRAP_III;
    safe_to_overwrite[6] = DNGN_UNDISCOVERED_TRAP;
    safe_to_overwrite[7] = DNGN_FLOOR_SPECIAL;

    const dungeon_feature_type safe_to_overwrite[] = {
        DNGN_FLOOR, DNGN_SHALLOW_WATER, DNGN_OPEN_DOOR,
        DNGN_TRAP_MECHANICAL, DNGN_TRAP_MAGICAL, DNGN_TRAP_III,
        DNGN_UNDISCOVERED_TRAP,
        DNGN_FLOOR_SPECIAL
    };

    if ( powc > 95 )
        powc = 95;
    if ( powc < 25 )
        powc = 25;

    for (srx = you.x_pos - 1; srx < you.x_pos + 2; srx++)

    for (int srx = you.x_pos - 1; srx < you.x_pos + 2; srx++)

        for (sry = you.y_pos - 1; sry < you.y_pos + 2; sry++)

        for (int sry = you.y_pos - 1; sry < you.y_pos + 2; sry++)

            proceed = false;

            if ( random2(100) > powc )
                continue;

            // the break here affects innermost containing loop {dlb}:
            for (loopy = 0; loopy < 7; loopy++)

            bool proceed = false;
            for (int i = 0; i < ARRAYSIZE(safe_to_overwrite); ++i)

                if (grd[srx][sry] == safe_to_overwrite[loopy])

                if (grd[srx][sry] == safe_to_overwrite[i])

            int which_trap;

    case CARD_TOMB:             entomb(); break;

    case CARD_TOMB:             entomb(power/2); break;