问题描述
当然可以通过适当使用现有的
运算符来获得效果，但^^运算符会产生良好的对称性（以及
对我有用）在我正在努力的事情上）。我是唯一一个
会发现它有用的人吗？
-
Christopher Benson-Manica |我*应该*知道我在说什么 - 如果我
ataru（at）cyberspace.org |不，我需要知道。火焰欢迎。
Of course one can get the effect with appropriate use of existing
operators, but a ^^ operator would make for nice symmetry (as well as
useful to me in something I''m working on). Am I the only one who
would find it useful?
--
Christopher Benson-Manica | I *should* know what I''m talking about - if I
ataru(at)cyberspace.org | don''t, I need to know. Flames welcome.
推荐答案
你的意思是如果一个操作符只有一个操作数就返回1
非零，否则为0？是的，那会很有用。但是忘了
的短路语义。想想看，你会明白为什么。
-
/ - Joona Palaste（pa*****@cc.helsinki。 fi）-------------芬兰-------- \
\-- ----------------- ----规则！ -------- /
You mean an operator that returns 1 if exactly one of its operands is
nonzero, and 0 otherwise? Yes, that would be useful. But forget about
the short-circuit semantics. Think about it and you''ll see why.
--
/-- Joona Palaste (pa*****@cc.helsinki.fi) ------------- Finland --------\
\-- http://www.helsinki.fi/~palaste --------------------- rules! --------/
你的意思是如果一个操作符只有一个操作数是非零的，则返回1，否则为0？是的，那会很有用。但忘记了短路语义。想一想，你会明白为什么。
You mean an operator that returns 1 if exactly one of its operands is
nonzero, and 0 otherwise? Yes, that would be useful. But forget about
the short-circuit semantics. Think about it and you''ll see why.
如果有一元一元的操作员，我们可以写日文表情
到我们的代码。例如：
sashimi ^ = ^ kawaii;
-
/ - Joona Palaste（pa **** *@cc.helsinki.fi）-------------芬兰-------- \
\-- ----------- ----------规则！ -------- /
战争！咦！天哪，你们呀！到底有什么好处呢？我们询问了Quimby市长。
- Kent Brockman
Also if there were an unary ^ operator, we could write Japanese smileys
into our code. For example:
sashimi ^=^ kawaii;
--
/-- Joona Palaste (pa*****@cc.helsinki.fi) ------------- Finland --------\
\-- http://www.helsinki.fi/~palaste --------------------- rules! --------/
"War! Huh! Good God, y''all! What is it good for? We asked Mayor Quimby."
- Kent Brockman
如果你写的条件是合乎逻辑的（那就是避免if（x）
style idioms），那么使用现有的xor运算符就可以实现与你提出的^^相同的东西，不是吗？我的意思是，对于xor运算符，可能没有
短路评估。
-nrk。
-
删除电子邮件的devnull
If you write your conditions to be all logical (that is avoid the if ( x )
style idioms), then using the existing xor operator would achieve exactly
the same thing as your proposed ^^, wouldn''t it? I mean, there can be no
short-circuit evaluation of an xor operator.
-nrk.
--
Remove devnull for email
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