C++/Java:切换布尔语句？

Question

有一个简短的方法来切换布尔值？

使用整数,我们可以执行以下操作:

int i = 4;
i *= 4; // equals 16
/* Which is equivalent to */
i = i * 4;

那么布尔*=运算器也有一些东西(比如整数运算符)？

在C++中:

bool booleanWithAVeryLongName = true;
booleanWithAVeryLongName = !booleanWithAVeryLongName;
// Can it shorter?
booleanWithAVeryLongName !=; // Or something?

在Java中:

boolean booleanWithAVeryLongName = true;
booleanWithAVeryLongName = !booleanWithAVeryLongName;
// Can it shorter?
booleanWithAVeryLongName !=; // Or something?

Answer 1

没有这样的运算符,但这有点短: booleanWithAVeryLongName ^= true;

Answer 2

一个简单的函数(在C++中):

void toggle (bool& value) {value = !value;}

然后你使用它像:

bool booleanWithAVeryLongName = true;      
toggle(booleanWithAVeryLongName);