Set precision for all variables in one step

Question

How can I use std::setprecision on all variables of type double in my C++ program in a single step, without using it on each variable one by one? Do I need a typedef or something?

Answer 1

Moses Odhiambo don't use serprecision with cout in conjunction with variable to be output...

just do it once individually and all following variable will follow the same. Refer below code :
double a = 2.345;
double b = 3.4556789;

cout << setprecision(3);

cout << a << endl; // prints 2.35
cout << b << endl; // prints 3.46

Correct me if I misunderstood your question...

Answer 2

Ketan Lalcheta you should be a moderator.

Answer 3

Moses Odhiambo I am looking for that honour...