fstream outfile("")

[fayevalentine]

Hi!
I have a little problem, I am writing to a file with this code:

ofstream outfile("c:\\salida.dat");
outfile<<1<<" "<<2<<" "<<3<<" "<<4<<"\n"<<5<<" "<<6<<" "<<7<<" "<<8;
outfile.close();

but when a write a new data all existing data are erased.
What can I do to append my new data?
Thank you.

 

[globos]

Hi,

Create your output stream like this :

ofstream outfile("c:\\salida.dat", ofstream::app);

--
Globos

 

[2ffat]

Also try:

ofstream outfile("c:\\salida.dat", ios::app);

If the standard namespace is not globally defined you may have to use:

ofstream outfile("c:\\salida.dat", std::ios::app);

James P. Cottingham
-----------------------------------------
^{To determine how long it will take to write and debug a program, take your best estimate, multiply that by two, add one, and convert to the next higher units.}

 

[fayevalentine]

Thank you very much!
It was very useful your advices.