void参数参数 [英] void parameter argument
问题描述
仅仅是我，还是删除了对void这个词的支持。在一个
参数列表中非常讨厌？我们中的一些人已经编程为
年推出void function_name（void） - 它真的不舒服
不得不错过它。有没有理由让他们删除这个？我不是没有b $ b假设有一个pragma或什么来阻止编译器对它的咆哮
有吗？
Is it just me, or is the removal of support for the word "void" in a
parameter list extremely annoying? Some of us have been programming for
years putting "void function_name (void)" - and it really doesn''t feel nice
having to miss it out. Is there any reason for them removing this? I don''t
suppose there''s a pragma or something to stop the compiler barking about it
is there?
推荐答案
AFAIK，语法
void function_name（void）
是在ANSI C中引入的（或者可能更早）因为旧的，原始的&b $ b K& RC允许具有未指定的原型的原型。参数。所以，在
C中你也可以说，
void function_name（）
其中_not_ mean" ;此函数不带任何参数，但是
而不是我不是在告诉你这个函数需要什么参数，如果
any。所以，（void）语法是一个必要的补充，以区分
这个不公开和声明函数没有
参数。这是一个向后兼容的东西。
我认为它在C＃中被遗漏了，因为它是多余的。在要求您声明所有参数的
语言中，没有必要使用关键字void来区分这两种情况。
AFAIK, the syntax
void function_name(void)
was introduced in ANSI C (or perhaps earlier) because the old, original
K&R C allowed function prototypes with "unspecified" arguments. So, in
C you could also say,
void function_name()
which did _not_ mean "this function does not take any arguments," but
rather "I''m not telling you what arguments this function takes, if
any." So, the "(void)" syntax was a necessary addition to distinguish
between this non-disclosure and a declaration that a function took no
arguments. It was a backward compatibility thing.
I suppose that it was left out in C# because it''s superfluous. In a
language that requires you to declare all arguments, there''s no need to
distinguish between the two cases with a keyword "void".
Dan写道：
这只是我，还是取消了对void这个词的支持在
参数列表中非常烦人？我们中的一些人已经编程了
年推出void function_name（void） - 它真的不是很好，不得不错过它。有没有理由让他们删除这个？我不认为有一个pragma或什么东西阻止编译器对它咆哮
有吗？
Is it just me, or is the removal of support for the word "void" in a
parameter list extremely annoying? Some of us have been programming for
years putting "void function_name (void)" - and it really doesn''t feel nice
having to miss it out. Is there any reason for them removing this? I don''t
suppose there''s a pragma or something to stop the compiler barking about it
is there?
但是你有键入较少，那么有什么大不了的？ ）。只是习惯了
（）意味着（没有）或（无效）或（虚无）你已经完成了:)
FB
-
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我的.NET博客： http：//weblogs.asp。 net / fbouma
Microsoft MVP（C＃）
---------------------- --------------------------------------------------
But you have to type less, so what''s the big deal? ;). Just get used to
() means (nothing) or (void) or (nada) and you''re done :)
FB
--
------------------------------------------------------------------------
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My .NET blog: http://weblogs.asp.net/fbouma
Microsoft MVP (C#)
------------------------------------------------------------------------
> >是仅仅是我，还是删除了对void这个词的支持。在
> > Is it just me, or is the removal of support for the word "void" in a
参数列表非常讨厌？我们中的一些人已经编程了
年推出void function_name（void） - 它真的不觉得
不错，不得不错过它。有没有理由让他们删除这个？我b $ b不要以为有一个pragma或什么来阻止编译器咆哮
它在那里？
parameter list extremely annoying? Some of us have been programming for
years putting "void function_name (void)" - and it really doesn''t feel nice having to miss it out. Is there any reason for them removing this? I don''t suppose there''s a pragma or something to stop the compiler barking about it is there?
但是你必须输入更少，那有什么大不了的？ ）。刚习惯
（）意味着（没有）或（无效）或（虚无），你已经完成了：）
But you have to type less, so what''s the big deal? ;). Just get used to
() means (nothing) or (void) or (nada) and you''re done :)
不幸的是，在工作中它是'我们的编码标准的一部分，你必须把
" void"在没有参数的函数中（我们在工作中使用C）。所以我不能得到
以前不使用它。
Unfortunately, at work it''s part of our coding standard that you have to put
"void" in a function without parameters (we use C at work). So I can''t get
used to not using it.
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