Reset properties of std::cout for integers or doubles in C++

Reset properties of std::cout for integers or doubles in C++

At various places in my code, I set certain stream properties, such as in
std::cout << fixed << 4.56342;, in order to manipulate how an integer or
double appears when printed to standard out. Sometimes during a particular
runtime flow, std::cout is used without any manipulations but the output
is inadvertently transformed because of a preceding manipulation.
So, what is the best way to reset all such properties of std::cout so that
a call to std::cout<< will behave precisely as in the following example:
#include <iostream>
int main(int argc, char **argv) {
// let X be an integer or a double
std::cout << X;
return 0;
}



I see Effective use of C++ iomanip library, and it makes sense generally
to not use the manipulators directly. That will be a good strategy going
forward. Still, it would be nice to know how to undo all such
manipulations as I describe above.