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Error on some of the ncurses tutorial examples e.g. for ncurses/menu.e
From: |
Aaron Cook |
Subject: |
Error on some of the ncurses tutorial examples e.g. for ncurses/menu.e |
Date: |
Sun, 21 Nov 2021 22:00:35 +1100 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Firefox/60.0 SeaMonkey/2.53.7.1 |
Hello,
I have been working through compiling and running some of the tutorial
examples, and I am encountering errors with some of the ncurses tutorial
examples.
The examples ncurses/hello.e and ncurses/pad.e seem to run ok for me,
but others such as ncurses/menu.e give an error.
See below for the output I get from compiling and running ncurses/menu.e
I'm not sure if others can compile and run this example ok?
I am very far from being an expert, so it could well be a setup issue
with my system. FYI - I am running liberty eiffel bell on Slackware
Linux 14.2, 64 bit version.
Thanks very much for any help, or pointers in the right direction :).
Best wishes, Aaron
----
bash-4.3$ se compile menu.e -o menu
bash-4.3$ ./menu
12 frames in run-time stack.
==== Bottom of run-time stack ====
<system root>
Current = MENU#0x2077078
[ menubar = Void
root_window = #0x2134558
]
line 15 column 4 file
/home/aaron/Eiffel/liberty-eiffel/tutorial/ncurses/menu.e
======================================
make MENU
Current = MENU#0x2077078
[ menubar = Void
root_window = #0x2134558
]
items = HASHED_DICTIONARY[HASHED_DICTIONARY[STRING,STRING],STRING]#0x21478f8
[ free_nodes = #0x2149908
cache_node = #0x21619b8
buckets =
NATIVE_ARRAY[HASHED_DICTIONARY_NODE[HASHED_DICTIONARY[STRING,STRING],STRING]]#0x214b930
count = 3
cache_user = 3
generation = 3
capacity = 53
cache_buckets = 28
]
item = HASHED_DICTIONARY[STRING,STRING]#0x21539a8
[ free_nodes = #0x2155938
cache_node = #0x215fa98
buckets =
NATIVE_ARRAY[HASHED_DICTIONARY_NODE[STRING,STRING]]#0x2157cc0
count = 3
cache_user = 3
generation = 3
capacity = 53
cache_buckets = 30
]
line 43 column 30 file
/home/aaron/Eiffel/liberty-eiffel/tutorial/ncurses/menu.e
======================================
make NCURSES_MENUBAR[STRING]
Current = NCURSES_MENUBAR[STRING]#0x2163978
[ window = #0x2134590
parent = Void
children = #0x2165aa0
menus = #0x216fa98
last_choice_memory = Void
top = 0
height = 6
width = 239
selected = 0
left = 0
is_children_drawing_disable = False
hidden = False
valid_choice = False
]
p = NCURSES_WINDOW#0x2134558
[ children = #0x2165a78
parent = Void
widget = POINTER#0x20b85a0
last_keypress = 0
get_fg_color = 7
get_bg_color = 0
disposed = False
hidden = False
is_children_drawing_disable = False
]
y = 0
mns = HASHED_DICTIONARY[HASHED_DICTIONARY[STRING,STRING],STRING]#0x21478f8
[ free_nodes = #0x2149908
cache_node = #0x21619b8
buckets =
NATIVE_ARRAY[HASHED_DICTIONARY_NODE[HASHED_DICTIONARY[STRING,STRING],STRING]]#0x214b930
count = 3
cache_user = 3
generation = 3
capacity = 53
cache_buckets = 28
]
with_border = True
m = 3
i = 4
x = 14
items = ARRAY[NCURSES_MENU_ITEM[STRING]]#0x2179b08
[ storage = NATIVE_ARRAY[NCURSES_MENU_ITEM[STRING]]#0x217bb20
lower = 1
generation = 4
capacity = 3
upper = 3
]
line 203 column 77 file /usr/local/bell/src/lib/ncurses/ncurses_menubar.e
======================================
create expression wrapper
======================================
make NCURSES_MENU[STRING]
Current = NCURSES_MENU[STRING]#0x2185b98
[ tag = "menu 3"
window = Void
last_choice_memory = Void
children = Void
parent = #0x2163978
items = #0x2179b08
width = 8
top = 1
left = 14
selected = 1
height = 5
valid_choice = False
hidden = False
has_border = True
is_children_drawing_disable = False
]
p = NCURSES_MENUBAR[STRING]#0x2163978
[ window = #0x2134590
parent = Void
children = #0x2165aa0
menus = #0x216fa98
last_choice_memory = Void
top = 0
height = 6
width = 239
selected = 0
left = 0
is_children_drawing_disable = False
hidden = False
valid_choice = False
]
x = 14
y = 1
t = "menu 3"
its = ARRAY[NCURSES_MENU_ITEM[STRING]]#0x2179b08
[ storage = NATIVE_ARRAY[NCURSES_MENU_ITEM[STRING]]#0x217bb20
lower = 1
generation = 4
capacity = 3
upper = 3
]
with_border = True
i = 4
line 153 column 51 file /usr/local/bell/src/lib/ncurses/ncurses_menu.e
======================================
create_sub_window NCURSES_WINDOW
Current = NCURSES_WINDOW#0x2134590
[ children = #0x2165ac8
parent = #0x2134558
widget = POINTER#0x2165970
last_keypress = 0
get_fg_color = 7
get_bg_color = 0
disposed = False
hidden = False
is_children_drawing_disable = False
]
x = 14
y = 1
columns = 8
lines = 5
Result = Void
line 258 column 49 file /usr/local/bell/src/lib/ncurses/ncurses_window.e
======================================
make_sub_window NCURSES_WINDOW
Current = NCURSES_WINDOW#0x2134638
[ children = Void
parent = #0x2134590
widget = POINTER#0x2187ca0
last_keypress = 0
get_fg_color = 0
get_bg_color = 0
disposed = False
hidden = False
is_children_drawing_disable = False
]
w = NCURSES_WINDOW#0x2134590
[ children = #0x2165ac8
parent = #0x2134558
widget = POINTER#0x2165970
last_keypress = 0
get_fg_color = 7
get_bg_color = 0
disposed = False
hidden = False
is_children_drawing_disable = False
]
x = 14
y = 1
columns = 8
lines = 5
line 728 column 10 file /usr/local/bell/src/lib/ncurses/ncurses_window.e
======================================
init NCURSES_WINDOW
Current = NCURSES_WINDOW#0x2134638
[ children = Void
parent = #0x2134590
widget = POINTER#0x2187ca0
last_keypress = 0
get_fg_color = 0
get_bg_color = 0
disposed = False
hidden = False
is_children_drawing_disable = False
]
line 743 column 10 file /usr/local/bell/src/lib/ncurses/ncurses_window.e
======================================
set_cursor NCURSES_WINDOW
Current = NCURSES_WINDOW#0x2134638
[ children = Void
parent = #0x2134590
widget = POINTER#0x2187ca0
last_keypress = 0
get_fg_color = 0
get_bg_color = 0
disposed = False
hidden = False
is_children_drawing_disable = False
]
x = 0
y = 0
line 150 column 10 file /usr/local/bell/src/lib/ncurses/ncurses_window.e
======================================
valid_cursor NCURSES_WINDOW
Current = NCURSES_WINDOW#0x2134638
[ children = Void
parent = #0x2134590
widget = POINTER#0x2187ca0
last_keypress = 0
get_fg_color = 0
get_bg_color = 0
disposed = False
hidden = False
is_children_drawing_disable = False
]
x = 0
y = 0
Result = False
line 161 column 10 file /usr/local/bell/src/lib/ncurses/ncurses_window.e
======================================
valid_cursor_x NCURSES_WINDOW
Current = NCURSES_WINDOW#0x2134638
[ children = Void
parent = #0x2134590
widget = POINTER#0x2187ca0
last_keypress = 0
get_fg_color = 0
get_bg_color = 0
disposed = False
hidden = False
is_children_drawing_disable = False
]
x = 0
Result = False
line 120 column 10 file /usr/local/bell/src/lib/ncurses/ncurses_window.e
======================================
width NCURSES_WINDOW
Current = NCURSES_WINDOW#0x2134638
[ children = Void
parent = #0x2134590
widget = POINTER#0x2187ca0
last_keypress = 0
get_fg_color = 0
get_bg_color = 0
disposed = False
hidden = False
is_children_drawing_disable = False
]
Result = -6
line 172 column 17 file /usr/local/bell/src/lib/ncurses/ncurses_window.e
==== Top of run-time stack ====
*** Error at Run Time ***: Class Invariant Violation.
*** Error at Run Time ***: window /= Void
18 frames in run-time stack.
==== Bottom of run-time stack ====
<system root>
Current = MENU#0x2077078
[ menubar = Void
root_window = #0x2134558
]
line 15 column 4 file
/home/aaron/Eiffel/liberty-eiffel/tutorial/ncurses/menu.e
======================================
make MENU
Current = MENU#0x2077078
[ menubar = Void
root_window = #0x2134558
]
items = HASHED_DICTIONARY[HASHED_DICTIONARY[STRING,STRING],STRING]#0x21478f8
[ free_nodes = #0x2149908
cache_node = #0x21619b8
buckets =
NATIVE_ARRAY[HASHED_DICTIONARY_NODE[HASHED_DICTIONARY[STRING,STRING],STRING]]#0x214b930
count = 3
cache_user = 3
generation = 3
capacity = 53
cache_buckets = 28
]
item = HASHED_DICTIONARY[STRING,STRING]#0x21539a8
[ free_nodes = #0x2155938
cache_node = #0x215fa98
buckets =
NATIVE_ARRAY[HASHED_DICTIONARY_NODE[STRING,STRING]]#0x2157cc0
count = 3
cache_user = 3
generation = 3
capacity = 53
cache_buckets = 30
]
line 43 column 30 file
/home/aaron/Eiffel/liberty-eiffel/tutorial/ncurses/menu.e
======================================
make NCURSES_MENUBAR[STRING]
Current = NCURSES_MENUBAR[STRING]#0x2163978
[ window = #0x2134590
parent = Void
children = #0x2165aa0
menus = #0x216fa98
last_choice_memory = Void
top = 0
height = 6
width = 239
selected = 0
left = 0
is_children_drawing_disable = False
hidden = False
valid_choice = False
]
p = NCURSES_WINDOW#0x2134558
[ children = #0x2165a78
parent = Void
widget = POINTER#0x20b85a0
last_keypress = 0
get_fg_color = 7
get_bg_color = 0
disposed = True
hidden = False
is_children_drawing_disable = False
]
y = 0
mns = HASHED_DICTIONARY[HASHED_DICTIONARY[STRING,STRING],STRING]#0x21478f8
[ free_nodes = #0x2149908
cache_node = #0x21619b8
buckets =
NATIVE_ARRAY[HASHED_DICTIONARY_NODE[HASHED_DICTIONARY[STRING,STRING],STRING]]#0x214b930
count = 3
cache_user = 3
generation = 3
capacity = 53
cache_buckets = 28
]
with_border = True
m = 3
i = 4
x = 14
items = ARRAY[NCURSES_MENU_ITEM[STRING]]#0x2179b08
[ storage = NATIVE_ARRAY[NCURSES_MENU_ITEM[STRING]]#0x217bb20
lower = 1
generation = 4
capacity = 3
upper = 3
]
line 203 column 77 file /usr/local/bell/src/lib/ncurses/ncurses_menubar.e
======================================
create expression wrapper
======================================
make NCURSES_MENU[STRING]
Current = NCURSES_MENU[STRING]#0x2185b98
[ tag = "menu 3"
window = Void
last_choice_memory = Void
children = Void
parent = #0x2163978
items = #0x2179b08
width = 8
top = 1
left = 14
selected = 1
height = 5
valid_choice = False
hidden = False
has_border = True
is_children_drawing_disable = False
]
p = NCURSES_MENUBAR[STRING]#0x2163978
[ window = #0x2134590
parent = Void
children = #0x2165aa0
menus = #0x216fa98
last_choice_memory = Void
top = 0
height = 6
width = 239
selected = 0
left = 0
is_children_drawing_disable = False
hidden = False
valid_choice = False
]
x = 14
y = 1
t = "menu 3"
its = ARRAY[NCURSES_MENU_ITEM[STRING]]#0x2179b08
[ storage = NATIVE_ARRAY[NCURSES_MENU_ITEM[STRING]]#0x217bb20
lower = 1
generation = 4
capacity = 3
upper = 3
]
with_border = True
i = 4
line 153 column 51 file /usr/local/bell/src/lib/ncurses/ncurses_menu.e
======================================
create_sub_window NCURSES_WINDOW
Current = NCURSES_WINDOW#0x2134590
[ children = #0x2165ac8
parent = #0x2134558
widget = POINTER#0x2165970
last_keypress = 0
get_fg_color = 7
get_bg_color = 0
disposed = True
hidden = False
is_children_drawing_disable = False
]
x = 14
y = 1
columns = 8
lines = 5
Result = Void
line 258 column 49 file /usr/local/bell/src/lib/ncurses/ncurses_window.e
======================================
make_sub_window NCURSES_WINDOW
Current = NCURSES_WINDOW#0x2134638
[ children = Void
parent = #0x2134590
widget = POINTER#0x2187ca0
last_keypress = 0
get_fg_color = 0
get_bg_color = 0
disposed = True
hidden = False
is_children_drawing_disable = False
]
w = NCURSES_WINDOW#0x2134590
[ children = #0x2165ac8
parent = #0x2134558
widget = POINTER#0x2165970
last_keypress = 0
get_fg_color = 7
get_bg_color = 0
disposed = True
hidden = False
is_children_drawing_disable = False
]
x = 14
y = 1
columns = 8
lines = 5
line 728 column 10 file /usr/local/bell/src/lib/ncurses/ncurses_window.e
======================================
init NCURSES_WINDOW
Current = NCURSES_WINDOW#0x2134638
[ children = Void
parent = #0x2134590
widget = POINTER#0x2187ca0
last_keypress = 0
get_fg_color = 0
get_bg_color = 0
disposed = True
hidden = False
is_children_drawing_disable = False
]
line 743 column 10 file /usr/local/bell/src/lib/ncurses/ncurses_window.e
======================================
set_cursor NCURSES_WINDOW
Current = NCURSES_WINDOW#0x2134638
[ children = Void
parent = #0x2134590
widget = POINTER#0x2187ca0
last_keypress = 0
get_fg_color = 0
get_bg_color = 0
disposed = True
hidden = False
is_children_drawing_disable = False
]
x = 0
y = 0
line 150 column 10 file /usr/local/bell/src/lib/ncurses/ncurses_window.e
======================================
valid_cursor NCURSES_WINDOW
Current = NCURSES_WINDOW#0x2134638
[ children = Void
parent = #0x2134590
widget = POINTER#0x2187ca0
last_keypress = 0
get_fg_color = 0
get_bg_color = 0
disposed = True
hidden = False
is_children_drawing_disable = False
]
x = 0
y = 0
Result = False
line 161 column 10 file /usr/local/bell/src/lib/ncurses/ncurses_window.e
======================================
valid_cursor_x NCURSES_WINDOW
Current = NCURSES_WINDOW#0x2134638
[ children = Void
parent = #0x2134590
widget = POINTER#0x2187ca0
last_keypress = 0
get_fg_color = 0
get_bg_color = 0
disposed = True
hidden = False
is_children_drawing_disable = False
]
x = 0
Result = False
line 120 column 10 file /usr/local/bell/src/lib/ncurses/ncurses_window.e
======================================
width NCURSES_WINDOW
Current = NCURSES_WINDOW#0x2134638
[ children = Void
parent = #0x2134590
widget = POINTER#0x2187ca0
last_keypress = 0
get_fg_color = 0
get_bg_color = 0
disposed = True
hidden = False
is_children_drawing_disable = False
]
Result = -6
line 172 column 17 file /usr/local/bell/src/lib/ncurses/ncurses_window.e
======================================
Garbage Collector at work.
dispose called (during sweep phase)
======================================
dispose NCURSES_MENUBAR[STRING]
Current = NCURSES_MENUBAR[STRING]#0x2163978
[ window = #0x2134590
parent = Void
children = #0x2165aa0
menus = #0x216fa98
last_choice_memory = Void
top = 0
height = 6
width = 239
selected = 0
left = 0
is_children_drawing_disable = False
hidden = False
valid_choice = False
]
line 189 column 10 file /usr/local/bell/src/lib/ncurses/ncurses_widget.e
======================================
delete NCURSES_MENUBAR[STRING]
Current = NCURSES_MENUBAR[STRING]#0x2163978
[ window = #0x2134590
parent = Void
children = #0x2165aa0
menus = #0x216fa98
last_choice_memory = Void
top = 0
height = 6
width = 239
selected = 0
left = 0
is_children_drawing_disable = False
hidden = False
valid_choice = False
]
line 136 column 10 file /usr/local/bell/src/lib/ncurses/ncurses_widget.e
======================================
dispose_children NCURSES_MENUBAR[STRING]
Current = NCURSES_MENUBAR[STRING]#0x2163978
[ window = #0x2134590
parent = Void
children = #0x2165aa0
menus = #0x216fa98
last_choice_memory = Void
top = 0
height = 6
width = 239
selected = 0
left = 0
is_children_drawing_disable = False
hidden = False
valid_choice = False
]
i = 2
line 204 column 30 file /usr/local/bell/src/lib/ncurses/ncurses_widget.e
======================================
delete NCURSES_MENU[STRING]
Current = NCURSES_MENU[STRING]#0x2185b98
[ tag = "menu 3"
window = Void
last_choice_memory = Void
children = Void
parent = #0x2163978
items = #0x2179b08
width = 8
top = 1
left = 14
selected = 1
height = 5
valid_choice = False
hidden = False
has_border = True
is_children_drawing_disable = False
]
line 136 column 10 file /usr/local/bell/src/lib/ncurses/ncurses_widget.e
======================================
invariant NCURSES_MENU[STRING]
Current = NCURSES_MENU[STRING]#0x2185b98
[ tag = "menu 3"
window = Void
last_choice_memory = Void
children = Void
parent = #0x2163978
items = #0x2179b08
width = 8
top = 1
left = 14
selected = 1
height = 5
valid_choice = False
hidden = False
has_border = True
is_children_drawing_disable = False
]
line 166 column 4 file /usr/local/bell/src/lib/ncurses/ncurses_menu.e
==== Top of run-time stack ====
*** Error at Run Time ***: Class Invariant Violation.
*** Error at Run Time ***: window /= Void
- Error on some of the ncurses tutorial examples e.g. for ncurses/menu.e,
Aaron Cook <=