c const_cast的等价？ [英] c equivalence of const_cast?

问题描述

我正在尝试将一小段c ++代码转换为c，只是为了简化

将它连接到第三种语言（我不知道c或
c ++）。

什么是c等价：

lpData = const_cast< char *>（Something）;


尝试使用gcc 3.2.3编译（mingw special 20030504-1）


谢谢！

Bj ？

解决方案

我不是c ++大师，但我认为你应该可以这样做：

lpData =（const char *）something;

" Mike Deskevich" < MI *********** @ gmail.com>写道：

我不是c ++大师，但我认为你应该能做到：
lpData =（const char *）something;

实际上，我认为他想要

lpData =（char *）的东西;


< OT>

C ++ const_cast用于抛弃constness。 C ++有几种类型的演员阵容比C'更受限制只需转换它，

相信我，我知道我在做什么投。 （C ++有C风格的演员阵容

很好。）

< / OT>


-

Keith Thompson（The_Other_Keith） ks***@mib.org < http://www.ghoti.net/ ~kst>

圣地亚哥超级计算机中心< *> < http://users.sdsc.edu/~kst>

我们必须做点什么。这是事情。因此，我们必须这样做。

" Bj？rn" < SS ***** @ hotmail.com>在消息中写道

新闻：d5 ************************* @ posting.google.co m ... < blockquote class =post_quotes>我正在尝试将一小段c ++代码转换为c，只是为了轻松将其链接到第三种语言（我不知道c或者 c ++）。

什么是c等价：
lpData = const_cast< char *>（Something）;

lpData =（char *）Something;


（C与C ++没有不同的'''''''''''''。

>
-Mike

I''m trying to convert some small piece of c++ code to c, only to ease
linking it to a third language (I''m not knowledgeable in either c or
c++).

What would be the the c equivalence of:
lpData=const_cast<char*>(Something);

Trying to compile this with gcc 3.2.3 (mingw special 20030504-1)

Thanks!
Bj?rn

解决方案

i''m not a c++ guru, but i think you should be able to do:
lpData=(const char*)something;

"Mike Deskevich" <mi***********@gmail.com> writes:

i''m not a c++ guru, but i think you should be able to do:
lpData=(const char*)something;

Actually, I think he wants
lpData = (char*)something;

<OT>
A C++ const_cast is used to cast away constness. C++ has several
flavors of casts that are more restricted than C''s "Just convert it,
trust me, I know what I''m doing" cast. (C++ has C-style casts as
well.)
</OT>

--
Keith Thompson (The_Other_Keith) ks***@mib.org <http://www.ghoti.net/~kst>
San Diego Supercomputer Center <*> <http://users.sdsc.edu/~kst>
We must do something. This is something. Therefore, we must do this.

"Bj?rn" <ss*****@hotmail.com> wrote in message
news:d5*************************@posting.google.co m...

I''m trying to convert some small piece of c++ code to c, only to ease
linking it to a third language (I''m not knowledgeable in either c or
c++).

What would be the the c equivalence of:
lpData=const_cast<char*>(Something);

lpData = (char*)Something;

(C doesn''t have different ''flavors'' of casts as does C++.)

-Mike

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