Re: STL simple problem

From:
"Alf P. Steinbach" <alfps@start.no>
Newsgroups:
comp.lang.c++
Date:
Tue, 30 Jun 2009 14:09:00 +0200
Message-ID:
<h2cvcn$8b0$2@news.motzarella.org>
* Alf P. Steinbach:

* wizard:

Why it doesn't work

class Tnames
 {
 public:
   wxString text;
   wxString table;
 };

 std::vector<Tnames> wektor;

    for (size_t i = 0; i < count; ++i)
     {
  Tnames temp;

  temp.text="text";

  wektor.push_back(temp);
     }

 for (int i=0; i<p_wek_t.size(); i++)
    {
  Tnames g = p_wek_t.at(i);

  g.table = "table";
        }

 for (i=0; i<p_wek_t.size(); i++)
    {
  Tnames g = p_wek_t.at(i);

  wxPrintf(_T("%s\n"), g.table); // here doesn't work - i've got
empty string here
  }

I'm beginner on STL ;so Could somebody help me


This looks like some wxWidgets code.

It has nothing do with STL (except the use of std::vector).

Probably wxString doesn have an implicit conversion to char const*, and
probably wxPrintf, with format specification %s, requires a char const*.


Sorry, probably wxPrintf is a variadic function (argument list "..."), in which
case implicit conversion or not doesn't matter, but what matters is that you
pass the type specified by %s, which probably is char const*.

For more informed answer try to

  * Ask in a group where the library you're using is on-topic.

  * Show actual code, not made-up code.

  * Copy and paste the code, don't re-type it.

Cheers & hth.,

- Alf


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