Ad:

C++ Discussion Thread
Marked Solved
Views: 548

Apr 23rd, 2009

please help me on this...:(

Expand Post »

for example you have a:
string test;

C++ Syntax (Toggle Plain Text)
 
void ExampleWindow::on_clicked(){
                ofstream myfile;
                string test;
  		myfile.open ("/home/ws14/Desktop/trunk/minisip/minisip/share/test.txt");
     		mydialfile << test;
   		mydialfile.close();
}
 
void ExampleWindow::on_clicked(){
                ofstream myfile;
                string test;
  		myfile.open ("/home/ws14/Desktop/trunk/minisip/minisip/share/test.txt");
     		mydialfile << test;
   		mydialfile.close();
}

how can I just add or insert a value on the file(test.txt). not just overwrite the file(test.txt) when the function(on_clicked) is being called.
All I need is if the function(on_clicked) is being called. The value of test is must add/insert(not ovewrite it) on the file(test.txt).
please help me.... thank you!

valtikz

Reputation Points: 46

Solved Threads: 7

Junior Poster in Training

Offline

51 posts
since Apr 2009

Permalink

Apr 23rd, 2009

Re: please help me on this...:(

C++ Syntax (Toggle Plain Text)
myfile.open(filename,ios::app);
myfile.open(filename,ios::app);

ArkM

Reputation Points: 1234

Solved Threads: 347

Postaholic

Offline

2,001 posts
since Jul 2008

Permalink

Apr 23rd, 2009

Re: please help me on this...:(

The easiest way would be to use the ios::app flag, this will open the file in append mode if the file exists, if it can't find the file, a new one will be created.

C++ Syntax (Toggle Plain Text)
ofstream myfile;
myfile.open("path\filename.ext", ios::app );
ofstream myfile;
myfile.open("path\filename.ext", ios::app );

Cheers for now,
Jas.

JasonHippy

Reputation Points: 590

Solved Threads: 123

Practically a Master Poster

Offline

672 posts
since Jan 2009

Permalink

Apr 23rd, 2009

-1

Re: please help me on this...:(

ofstream filestr;

filestr.open("path\test.ext", ios::app );

shefeekj

Reputation Points: 1

Solved Threads: 2

Light Poster

Offline

37 posts
since Apr 2009

Permalink

Apr 23rd, 2009

Re: please help me on this...:(

thanks for the help! I already know. But thanks to all hope to help me again.

valtikz

Reputation Points: 46

Solved Threads: 7

Junior Poster in Training

Offline

51 posts
since Apr 2009

Permalink

Apr 23rd, 2009

Re: please help me on this...:(

This is my next question: how to get a document from root?
because I have this code:

C++ Syntax (Toggle Plain Text)
myfile.open ("/home/ws14/Desktop/test.txt");
myfile.open ("/home/ws14/Desktop/test.txt");

But I need to change the path home/ws14 if I change user. Thanks!

valtikz

Reputation Points: 46

Solved Threads: 7

Junior Poster in Training

Offline

51 posts
since Apr 2009

This thread is solved

Either the thread starter or a moderator has marked this thread as solved. You can most likely trust the responses and answers given. There is most likely no reason for any further responses to be posted here. If you have a related question, please start a new thread in this forum instead.

This thread is more than three months old

No one has posted to this discussion for at least three months. Please let old threads die and do not reply to them unless you feel you have something new and valuable to contribute that absolutely must be added to make the discussion complete. Otherwise, please start a new thread in this forum instead.

Previous Thread in C++ Forum Timeline: how to convert c to c++

Next Thread in C++ Forum Timeline: Visual C++ help?

DaniWeb Message

Cancel Changes

User Name
Password