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问题描述
以下代码是什么意思？
struct GUID * guid = {0};
是否类似于C ++虚拟功能？
比尔
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Bill Cunningham< no **** @ net.net>潦草地写道：以下代码是什么意思？
struct GUID * guid = {0};
它初始化一个指向struct GUID的指针，无论struct GUID是什么。
指针当前没有指向任何结构GUID。
它是否类似于C ++虚函数？
No.
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" Bill Cunningham" <无**** @ net.net>写在
新闻：3f ******** @ corp.newsgroups.com：
以下代码是什么意思？
struct GUID * guid = {0};
是否类似于C ++虚函数？
No.意味着，创建一个指向struct GUID的指针，并将这个新的
指针初始化为0.这里不需要{}。我会把它写成：
struct GUID * pGuid = NULL;
但是如果我真的想要一个GUID对象，而不是指向一个的指针，
初始化为零我需要写：
struct GUID guid = {0};
或
struct GUID guid;
memset（guid，0，sizeof guid）;
-
- 马克 - >
-
" Bill坎宁安" <无**** @ net.net>在消息中写道
news：3f ******** @ corp.newsgroups.com ...以下代码是什么意思？
struct GUID * guid = {0};
创建一个类型为''指向struct GUID''的对象，
并将其初始化为NULL。 （大括号是可选的。）
是否类似于C ++虚函数？
完全没有。与任何类型的功能无关。
-Mike
What does the following code mean?
struct GUID *guid ={0};
Is it similar to a C++ virtual function?
Bill
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Bill Cunningham <no****@net.net> scribbled the following:What does the following code mean? struct GUID *guid ={0};
It initialises a pointer to struct GUID, whatever struct GUID is. The
pointer is currently not pointing at any struct GUID.
Is it similar to a C++ virtual function?
No.
--
/-- Joona Palaste (pa*****@cc.helsinki.fi) ---------------------------\
| Kingpriest of "The Flying Lemon Tree" G++ FR FW+ M- #108 D+ ADA N+++|
| http://www.helsinki.fi/~palaste W++ B OP+ |
\----------------------------------------- Finland rules! ------------/
"To doo bee doo bee doo."
- Frank Sinatra
"Bill Cunningham" <no****@net.net> wrote in
news:3f********@corp.newsgroups.com:
What does the following code mean?
struct GUID *guid ={0};
Is it similar to a C++ virtual function?
No. It means, create a pointer to a struct GUID and initialize this new
pointer to 0. The {} are not necessary here. I''d write this as:
struct GUID *pGuid = NULL;
But if I actually wanted a GUID object, and not a pointer to one,
initialzed to zero I''d need to write:
struct GUID guid = { 0 };
or
struct GUID guid;
memset(guid, 0, sizeof guid);
--
- Mark ->
--
"Bill Cunningham" <no****@net.net> wrote in message
news:3f********@corp.newsgroups.com...What does the following code mean?
struct GUID *guid ={0};
Create an object of type ''pointer to struct GUID'',
and initialize it to NULL. (the braces are optional).
Is it similar to a C++ virtual function?
Not at all. Nothing to do with a function of any kind.
-Mike
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