在类中创建const？ [英] Creating a const in a class?
问题描述
Hello cppers
我正在将Java类转换为C ++并在Java类中使用它：
public static final int APPLICATION = 0x40;
所以在我的C ++类中我尝试过：
const int APPLICATION = 0x40;
当然给我一个C2252编译错误。
如何在C ++类中创建等效类型的常量？
Hello cppers
I am converting a Java class to C++ and have this in a Java class:
public static final int APPLICATION = 0x40;
So in my C++ class I tried:
const int APPLICATION = 0x40;
which of course gives me a C2252 compile error.
How would I create the equivalent type of constant in a C++ class?
推荐答案
Angus skrev：
Angus skrev:
Hello cppers
我正在将Java类转换为C ++并在Java类中使用它：
Hello cppers
I am converting a Java class to C++ and have this in a Java class:
哎哟！ ;-)
Ouch! ;-)
>
public static final int APPLICATION = 0x40;
所以在我的C ++类中，我尝试过：
const int APPLICATION = 0x40;
这当然给了我一个C2252编译错误。
>
public static final int APPLICATION = 0x40;
So in my C++ class I tried:
const int APPLICATION = 0x40;
which of course gives me a C2252 compile error.
为什么呢？上面的声明看起来很好（但很难看：保留所有
大写的大写）。
Why of course? The above declaration looks fine (but ugly: reserve all
uppercase for macroes).
>
如何在C ++类中创建等效类型的常量？
>
How would I create the equivalent type of constant in a C++ class?
如果你使用的是旧的编译器（例如MSVC6），下面的技巧将会是
do：
enum {APPLICATION = 0x40};
/ Peter
If you''re using an old compiler (e.g. MSVC6), the following trick will
do:
enum { APPLICATION = 0x40 };
/Peter
Angus写道：
Angus wrote:
Hello cppers
我正在将Java类转换为C ++并将其转换为Java类：
public static final int APPLICATION = 0x40;
所以在我的C ++课程中我尝试过：
const int APPLICATION = 0x40;
这当然给我一个C2252编译错误。
我如何创建C ++类中的等价类型的常量？
Hello cppers
I am converting a Java class to C++ and have this in a Java class:
public static final int APPLICATION = 0x40;
So in my C++ class I tried:
const int APPLICATION = 0x40;
which of course gives me a C2252 compile error.
How would I create the equivalent type of constant in a C++ class?
我假设您正在使用其中一个MS编译器，因为您列出了
编译错误。你有没有检查过这个
编译器错误的MSDN帮助？有一个页面为您提供解决方案：
http：//支持.microsoft.com / kb / 241569
I''m assuming you''re using one of the MS compilers, because of the
compile error you listed. Did you check the MSDN help about this
compiler error? There''s a page with a solution for you:
http://support.microsoft.com/kb/241569
" peter koch" < pe *************** @ gmail.com写信息
新闻：11 *************** *******@a3g2000cwd.googlegro ups.com ...
"peter koch" <pe***************@gmail.comwrote in message
news:11**********************@a3g2000cwd.googlegro ups.com...
>
Angus skrev：
>
Angus skrev:
Hello cppers
我正在将Java类转换为C ++并在Java类中使用它：
Hello cppers
I am converting a Java class to C++ and have this in a Java class:
哎哟！ ;-)
Ouch! ;-)
public static final int APPLICATION = 0x40;
所以在我的C ++类中我尝试过：
const int APPLICATION = 0x40;
这当然给了我一个C2252编译错误。
public static final int APPLICATION = 0x40;
So in my C++ class I tried:
const int APPLICATION = 0x40;
which of course gives me a C2252 compile error.
为什么呢？上面的声明看起来很好（但很难看：保留所有
大写的大写）。
Why of course? The above declaration looks fine (but ugly: reserve all
uppercase for macroes).
如何在C ++类中创建等效类型的常量？
How would I create the equivalent type of constant in a C++ class?
如果您使用的是旧的编译器（例如MSVC6），以下技巧将会是
：
enum {APPLICATION = 0x40};
/ Peter
If you''re using an old compiler (e.g. MSVC6), the following trick will
do:
enum { APPLICATION = 0x40 };
/Peter
谢谢。我认为这是一个语言问题，而不是编译器限制问题。
Thanks. I assumed it was a language issue not a compiler limitation issue.
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