Get precision of cout
c++, cout, precision
Solution
The function is overloaded. Both overloads return the precision that was set before the call to the function. `cout.precision()` may be what you want to query it.
To save it and set it back later:
auto old_precision = cout.precision(temp_precision);
// do stuff
cout.precision(old_precision);
Problem
I can set precision of `cout` output using ``` cout.precision(precision_value); ``` how can I get the precision value, which is used by `cout` already? I can't find any other related function in `cout` description. The related problem I faced is how can I change cout precision for some part of a code only (so it need to be reset afterwards to exact previous value). I tryed: ``` //save original cout flags std::ios_base::fmtflags coutFlags = cout.flags(); cout.precision(1); cout.setf(ios::fixed); // code cout.flags(coutFlags); ``` but this doens't work.