Tek-Tips is the largest IT community on the Internet today!
Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!
-
Congratulations TouchToneTommy on being selected by the Tek-Tips community for having the most helpful posts in the forums last week. Way to Go!
Please explain the difference b 1
- Thread starter teser
- Start date
-
1
- #2
michaelkrauklis
Programmer
ifstream is for file input, and ofstream is for file output(in file stream and out file stream respectively). They allow you to read and write from files.
There's a quick example of a segment of code that will copy a file from [filename_in] to [filename_out]. I hope that helped.
p.s. The destructors for ifstream and ofstream automaticaly close the stream, so in.close() and out.close() are a bit redundant, but it's good programming practice to close your streams. There are some cases where data can be lost if you don't. MYenigmaSELF:-9
myenigmaself@yahoo.com
Code:
ifstream in(filename_in, ios::in);
ofstream out(filename_out, ios::out);
if(!in||!out){
cerr<<"error: input or output";
exit(1);
}
char ch[100];
while(in.getline(ch,100)){
out<<ch<<endl;
}
in.close();
out.close();There's a quick example of a segment of code that will copy a file from [filename_in] to [filename_out]. I hope that helped.
p.s. The destructors for ifstream and ofstream automaticaly close the stream, so in.close() and out.close() are a bit redundant, but it's good programming practice to close your streams. There are some cases where data can be lost if you don't. MYenigmaSELF:-9
myenigmaself@yahoo.com
- Status