Use a field width of 20 : double output « Data Types « C++ Tutorial

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C++ Tutorial » Data Types » double output

2.8.2.Use a field width of 20

#include <iostream>

#include <iomanip>



using namespace std;



int main()

{

  cout << "Default format: " << 123.123456789 << endl;



  cout << "Use a field width of 20:\n";

  cout << "|" << setw(20) << "Testing" << "|\n\n";

  cout << "Use a field width of 20 with left justification:\n";

  cout << "|" << setw(20) << left << "Testing" << "|\n\n";



  return 0;

}

2.8.double output
	2.8.1.	Precision of double: setprecision
	2.8.2.	Use a field width of 20
	2.8.3.	After setting the showpos and showpoint flags
	2.8.4.	setw manipulator is useful when repeated field
	2.8.5.	Return to default format

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