2.1.2 类型转换

版权声明：本文为博主原创文章，未经博主允许不得转载 https://blog.csdn.net/qit1314/article/details/89951557

书中页数：P32
代码名称：convs.cc

#include <iostream>
int main()
{
	int i = 42;
	std::cout << i << std::endl; // prints 42
	if (i) // condition will evaluate as true
		i = 0;
	std::cout << i << std::endl; // prints 0

	bool b = 42;            // b is true
	std::cout << b << std::endl; // prints 1

	int j = b;              // j has value 1
	std::cout << j << std::endl; // prints 1

	double pi = 3.14;       // pi has value 3.14
	std::cout << pi << std::endl; // prints 3.14

	j = pi;                 // j has value 3
	std::cout << j << std::endl; // prints 3

	unsigned char c = -1;   // assuming 8-bit chars, c has value 255
	i = c;  // the character with value 255 is an unprintable character
	        // assigns value of c (i.e., 255) to an int
	std::cout << i << std::endl; // prints 255
	
	return 0;
}