8. Formatted Output

C++ data types have OS- and hardware-specific internal representations...

• ...If we display a numeric value using formatted output, its value is properly converted to a corresponding sequence of characters.

• ...If we display a bool, we could convert its value to words "true" or "false".

Formatted Output handles value-to-text conversions for us:

For example,

#include <iomanip>
#include <iostream>
using std::cout;
using std::boolalpha;

int main( )
{
     int i = 789;
     double d = 0.5;
     bool b = true;

     cout << i;
     cout << ';';
     cout << d;
     cout << ';';
     cout << boolalpha << b;
     return 0;
}
/* Program output:
789;0.5;true
*/