Re: passing a string to a C++ function

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The first topic? Already did it on my own. I had an 18 year old give me a
typical teenaged attitude answer.

But arguing about this is a waste of time.

The thing is that anything I read is basic. Most array stuff I read doesn't
go beyong and array of integers.

Which is why I am asking for specific help

I certainly do kno wwhat I want my function to do, I just left parts that
are irrelevant out of the function

All I said is that I needed to pas a string to this function in two ways:

get it through a text file in the form of:

"item1"
"item2"
"item3"
"item4"
........

have these assigned to a string ( or passed to the function if possible) in
this form:

char *items[]={"item1","item2","item3","item4"...)

put those in a loop and print them out one by one

You are right I should revisit pointers since it's been about 7 years since
I last had to work with them at all, but my time is limited and I thought I
could get a bit of a shortcut by having someone probbaly effortlesly provide
me with an example of that type of function

No disrespect meant. I have helped many people in other programming
languages in my life, and written a lot of free code. Now I am in an area
that I basically understand but am far from good at it, and that is VC++








"David Webber" <dave@xxxxxxxxxxxxxxxxxxx> wrote in message
news:e4V9zcdyFHA.3320@xxxxxxxxxxxxxxxxxxxxxxx
>
> "Leo" <none@xxxxxxxx> wrote in message
> news:eBSdy8cyFHA.3892@xxxxxxxxxxxxxxxxxxxxxxx
>
> > Hmm...thanks for a very unhelpful answer.
>
> If you explore its consequences you will not find it unhelpful.
>
> > let me rephrase it:
> >
> > char items[3]={"tom","dick","harry"}
> > does that satisfy your "remaining 3 pointers fixation"?
>
> I'm afraid I have a "what the hell is this supposed to mean"
> fixation and I believe the compiler will have too.
>
> > now onto the next:
> > Forget the above,
>
> Right ho.
>
> > if I have a string with "tom","dick","harry"
> > can I build an array with them?
>
> Three strings. Yes you can build an array with them....
>
> > (I will learn more about pointers when I have some time.
>
> ...just as soon as you have learned more about pointers.
>
> > For now all I need
> > is a very simple function. Either you can help me with some code,
> > or leave
> > the preaching for another time. Sorry to be so blunt, but I am
> > getting all
> > kinds of answers, yet none related to what I am asking for).
>
> Equally désolé, but it is vary far from clear what you are asking
> for. You have been advised by others to use CString or std::string
> and std:vector but you have rejected these. The *reason* you have
> been advised this is that it is possible (but probably not
> advisable) to use them without knowing much about pointers and
> memory management. You can't use standatd nul-terminated strings
> without knowing about pointers, and about how to handle the memory
> they point to. You can't even specify what you want the function
> to do without understanding this, so even if this group were a
> collection of people volunterring to write code for free, thsey
> couldn't do it because you can't specify it. People have been very
> helpful on both threads you have started on this topic. All the
> answers make perfect sense, and (to be equally blunt) all are trying
> to work out what the hell you are asking for! Perhaps when you
> have had time to work out exactly what the question is, you'll
> understand the answers a bit better.
>
> Dave
> --
> David Webber
> Author MOZART the music processor for Windows -
> http://www.mozart.co.uk
> For discussion/support see
> http://www.mozart.co.uk/mzusers/mailinglist.htm
>
>
>
>
>
>
> >
> >
> >
> >
> > "David Webber" <dave@xxxxxxxxxxxxxxxxxxx> wrote in message
> > news:uXx2idcyFHA.3812@xxxxxxxxxxxxxxxxxxxxxxx
> >>
> >> "Leo" <none@xxxxxxxx> wrote in message
> >> news:%23tT%23VRcyFHA.596@xxxxxxxxxxxxxxxxxxxxxxx
> >>
> >> > 'items' is not an array pointer. It's a pointer array.
> >> > -- Ok!
> >> >
> >> > my point was not how I am DECLARING the array. My question was:
> >> >
> >> > passing a bunch of items to the function that will put them
> >> > into
> >> > this array.
> >>
> >> You can't. You really *do* need to learn what pointers are.
> >>
> >> The statement
> >>
> >> char *items[6]={"tom","paul","joseph"};
> >>
> >> declares six pointers each to a char. It also initialises some
> >> memory with the strings and sets the first three pointers to
> >> point
> >> to them. The rmaining three pointers are just pointers that
> >> point
> >> nowhere in particular.
> >>
> >> > so passing item1, item2, item3 and store them into the items[]
> >> > array.
> >>
> >> You can't store anything in the items array except pointers.
> >> And
> >> when you leave the function they will go out of scope, and be
> >> lost,
> >>
> >> >...
> >> > Any thoughts?
> >>
> >> Yes. Learn C or C++. Learn what a pointer is, and what an
> >> array
> >> is, and their relationship. Think about what is stored in
> >> memory
> >> where, and how you get access to it, rather than creating invalid
> >> pointers. I'm sorry but you have to do this - there is no
> >> shortcut.
> >>
> >> Dave
> >> --
> >> David Webber
> >> Author MOZART the music processor for Windows -
> >> http://www.mozart.co.uk
> >> For discussion/support see
> >> http://www.mozart.co.uk/mzusers/mailinglist.htm
> >>
> >>
> >>
> >
> >
>
>


.

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