Re: map (associative array) loses values?

From:
"BobR" <removeBadBobR@worldnet.att.net>
Newsgroups:
comp.lang.c++
Date:
Tue, 11 Sep 2007 18:04:24 GMT
Message-ID:
<IMAFi.527207$p47.503263@bgtnsc04-news.ops.worldnet.att.net>
<jeroenvlek@gmail.com> wrote in message...

On Sep 11, 5:59 pm, Kai-Uwe Bux <jkherci...@gmx.net> wrote:
<cut>

ah, ok. <string, int> works like a charm! :)

I'm using new, because I need the table somewhere else. The try/catch
is in my main, while the function resides in the SearchText class. The
delete statements are there, I just didn't post them ;)

Ofcourse I'm just a c++ newbie (this is my first program actually), so
what would you do different?


An alternative to Jim's suggestion:

// pass by non-const reference.
void SearchText::countWords( std::map<std::string, int> &map ){
     map["aap"] = 1;
     map["noot"] = 2;

     std::cout << map["aap"] << std::endl;
     std::cout << map["noot"] << std::endl;
     return;
     }

// int main(){
   try {

      std::map<std::string, int> MyMap;

      SearchText text("test.txt");
      text.countWords( MyMap );
      std::cout << MyMap["aap"] << std::endl;
      std::cout << MyMap["noot"] << std::endl;
       }
   catch( int ex) {
      cout << "Could not open file." << endl;
      }
// return 0;
// } // main()

Sorry, I didn't test that. Post back if you have trouble ( I may have missed
something. <G>).

--
Bob R
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