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Description
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Read about I/O manipulators at <a href="http://en.cppreference.com/w/cpp/io/manip", target="_blank">this link</a>.
Experiment with their usage.
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Remarks
Comments, history, license, etc.
 
Copied from problem cpp/var-expr/in_n_days (author: redekopp@usc.edu)
Copied from problem cpp/var-expr/char_arith (author: redekopp@usc.edu)
Copied from problem cpp/var-expr/hello (author: daveagp@gmail.com)
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Engine
Template / Reference solution
 
#include <iostream>
#include <iomanip>
#include <cmath>
using namespace std;
int main() {
   
   // Experiment with the boolalpha manipulator
   \[
      cout << "Bool values: " << boolalpha << true << " and " << false << endl;
      \show:
      cout << "Bool values: " << true << " and " << false << endl;
    ]\
      
   // Experiment with the setw(n) and setfill(char) manipulator
   \[
      cout << "Tabular values: " << endl;
      cout << setw(4) <<  11 <<  setw(4) << 10 <<  setw(4) << 12 << endl;
      cout << setfill('.') << setw(4) <<  8 << setw(4) << 7 << setw(4) << 5 << endl;
      \show:
      cout << "Tabular values: " << endl;
      cout << 11 << " " << 10 << " " << 12 << endl;
      // cout << setw(4) <<  11 <<  setw(4) << 10 <<  setw(4) << 12 << endl;
      cout << 8 << " " << 7 << " " << 5 << endl;
      // cout << setfill('.') << setw(4) <<  8 << setw(4) << 7 << setw(4) << 5 << endl;
    ]\
      
      
   // Experiment with the fixed and setprecision(n) manipulator
   double pi = M_PI;  
   \[
      cout << setprecision(3) << fixed << pi << endl;
      cout << 1000*pi << endl;
    \show:
      cout << pi << endl;
      cout << 1000*pi << endl;
    ]\
      
   
  return 0;
}
C++ test suite
json list of stdin/args tests
e.g. [{"stdin":"hi", "args":["4", "5"]},
{"stdin":"noargs"}]

to just run once with no input use [{}]
 
[
   {"stdin":"", "args":[]}
   
]
Solution visibility remove
Is example?
i.e., just a demo
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Note: problems are open-source by default (see 'Public permissions'). Assumed license for open problems is Creative Commons 4.0 Attribution-ShareAlike unless specified in 'Remarks'.