io20_9.03.c

来自「C++ Primer(第三版)的随书源代码」· C语言 代码 · 共 19 行

#include <iostream>

/**
 ** not executed: standard library with boolalpha not available
 **
 **/

int main()
{
    bool illustrate = true;

    cout << "bool object illustrate: "
         << illustrate << '\n'
         << "with boolalpha applied: "
         << boolalpha 
	 << illustrate << endl;
}