redirect stdout/stderr to file under unix c++ - again

Question

What I want to do

redirect stdout and stderr to one or more files from inside c++

Why I need it

I am using an external, pr

Answer 1

well i u'd better use freopen()

Usage Syntax:

freopen("RedToFile","r",stdout);
or
freopen("/dev/null","a",stdout);

the same goes for "stderr"