Questions tagged [eiffel-studio-18]
7 questions
0
votes
1 answer
Is it possible to make a create which returns a boolean
hi i dont know if i asked the question clearly.
i have a deferred class "animal" which contains two features : "bite" (this returns a boolean -> bite:BOOLEAN) and "speak"(speak(word:BOOLEAN)).
now i made a class named "dog" what inherit from…
du7ri
- 312
- 2
- 12
0
votes
2 answers
How to test objects of formal generic types for equality in Eiffel?
I should test for equality two generic attributes like
a, b: G
...
Result := a.is_equal (b)
but VUTA (target rule validity) says "separate target of the Object_call is not controlled". What can I do?
B3nTek
- 7
- 6
0
votes
1 answer
FIle handling in Eiffel
Given a file input.txt, which consists of a number of elements in arrays and elements in the arrays, I should read the data and copy it to arrays in Eiffel. For example, for
3
3 4 5
2 3 1
I should get len = 3, a1 = {3,4,5}, a2 = {2,3,1}.
I have…
Akash Tadwai
- 100
- 1
- 9
0
votes
1 answer
Problems compiling Traffic library
I attempted to install the Traffic library for the book "A Touch of Class" but was not able to compile the examples. EiffelStudio complained about a base2.ecf file.
Error code: VD00
General configuration parsing error.
What to do: fix the…
Hank Lenzi
- 81
- 1
- 6
0
votes
1 answer
Eiffel: Call use obsolete feature. Call to feature `to_string_8': Use `name_32' instead
I have a warning I cannot get rid of neither understand:
Eiffel: Call use obsolete feature. Call to feature `to_string_8': Use 'name_32' instead
item_prototype is a DB_SERVICE where I redefine out
if attached…
Pipo
- 4,653
- 38
- 47
0
votes
1 answer
eiffel c compilation failure: error LNK2001: unresolved external symbol
I'm trying to get familiar with Eiffel language so I've installed Eiffel Studio 18 and created a Graphics application. Compilation failed with message:
Preparing C compilation using already configured msc C compiler...
ERROR: Cannot start…
user7860670
- 35,849
- 4
- 58
- 84
-1
votes
1 answer
How do I initialize and fill a linked list in Eiffel?
Here's what I have so far.
create {LINKED_LIST[INTEGER]} list.make
from
i := 0
list.start
until
i = 11
loop
list.put(i)
i := i + 1
list.forth
end
The debugger points to line list.put(i). I think the problem is that list is…
Jamie Riko
- 1
- 3