How to write console output to a text file in cpp?

Question

I'm trying to write console data into a separate text file in cpp. Anybody help me with sample code.

Answer 1

There are various ways to do this. You could redirect it from the command line with programname > out.txt. Or you could use freopen("out.txt","w",stdout); at the start of your program.

Answer 2

If you want to write from your own process, I'd suggest a simple print method

void print(const string str, ostream & output)
{
    output << str;
}

Then you can call

print("Print this", cout);

for console output, or

ofstream filestream("filename.out");
print("Print this", filestream);

to write into a file "filename.out". Of course you gain most, if print is a class method that outputs all the object's specific information you need and this way you can direct the output easily to different streams.