blocks|key|2116652|text|您可以使用#pragma+warning+...|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|2116653|Mandatory+read|2116654|entityMap|0|LINK|mutability|MUTABLE|url|http://msdn.microsoft.com/en-us/library/2c8f766e%2528v=VS.100%2529.aspx^0|5|J|0|0|E|0|0^^$0|@$1|2|3|4|5|6|7|P|8|@$9|Q|A|R|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|S|8|@]|D|@$9|T|A|U|1|V]]|E|$]]|$1|H|3|-4|5|6|7|W|8|@]|D|@]|E|$]]]|I|$J|$5|K|L|M|E|$N|O]]]]

You can use <code>#pragma warning ...</code>

<a href="http://msdn.microsoft.com/en-us/library/2c8f766e%28v=VS.100%29.aspx" rel="nofollow">Mandatory read</a>

blocks|key|5116318|text|MSVC使用|type|unstyled|depth|inlineStyleRanges|entityRanges|data|5116319|#pragma+error(+"message"+)|code-block|syntax|javascript|5116320|和|5116321|#pragma+warning(+"message"+)|5116322|指令，而GCC省略了pragma。|offset|length|style|CODE|5116323|entityMap^0|0|0|0|0|A|6|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|T|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|U|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|V|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|W|8|@$M|X|N|Y|O|P]]|9|@]|A|$]]|$1|Q|3|-4|5|6|7|Z|8|@]|9|@]|A|$]]]|R|$]]

MSVC uses

<pre><code>#pragma error( "message" )
</code></pre>

and

<pre><code>#pragma warning( "message" )
</code></pre>

directives, whereas GCC leaves out the <code>pragma</code>s.

blocks|key|5116339|text|我没有找到任何关于警告消息的东西，但是MSVC已经创建了编译错误，就像msdn+page所说的xcode+'#error+message`|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|5116340|entityMap|0|LINK|mutability|MUTABLE|url|http://msdn.microsoft.com/en-us/library/c8tk0xsk%2528v=VS.80%2529.aspx^0|Z|9|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

didn't find anything about warning message but MSVC has creates compile errors just like xcode '#error message` according to <a href="http://msdn.microsoft.com/en-us/library/c8tk0xsk%28v=VS.80%29.aspx" rel="nofollow">msdn page</a>

blocks|key|210011|text|我知道这个建议有点晚了，但是...|type|unstyled|depth|inlineStyleRanges|entityRanges|data|210012|你可以通过下面的技巧达到你想要的效果：|210013|//+stringised+version+of+line+number+(must+be+done+in+two+steps)
#define+STRINGISE(N)+#N
#define+EXPAND_THEN_STRINGISE(N)+STRINGISE(N)
#define+__LINE_STR__+EXPAND_THEN_STRINGISE(__LINE__)

//+MSVC-suitable+routines+for+formatting+<#pragma+message>
#define+__LOC__+__FILE__+"("+__LINE_STR__+")"
#define+__OUTPUT_FORMAT__(type)+__LOC__+"+:+"+type+"+:+"

//+specific+message+types+for+<#pragma+message>
#define+__WARN__+__OUTPUT_FORMAT__("warning")
#define+__ERR__+__OUTPUT_FORMAT__("error")
#define+__MSG__+__OUTPUT_FORMAT__("programmer's+message")
#define+__TODO__+__OUTPUT_FORMAT__("to+do")|code-block|syntax|javascript|210014|然后生成一条消息，例如：|210015|#pragma+message+(+__MSG__+"my+message"+)|210016|(来自http://rhubbarb.wordpress.com/2009/04/08/user-compilation-messages-c-or-c/)|offset|length|210017|entityMap|0|LINK|mutability|MUTABLE|url|http://rhubbarb.wordpress.com/2009/04/08/user-compilation-messages-c-or-c/^0|0|0|0|0|0|3|22|0|0^^$0|@$1|2|3|4|5|6|7|Y|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|Z|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|10|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|11|8|@]|9|@]|A|$]]|$1|K|3|L|5|F|7|12|8|@]|9|@]|A|$G|H]]|$1|M|3|N|5|6|7|13|8|@]|9|@$O|14|P|15|1|16]]|A|$]]|$1|Q|3|-4|5|6|7|17|8|@]|9|@]|A|$]]]|R|$S|$5|T|U|V|A|$W|X]]]]

This suggestion is a bit late I know, but...

You can achieve what you want with the following trick:

<pre><code>// stringised version of line number (must be done in two steps)
#define STRINGISE(N) #N
#define EXPAND_THEN_STRINGISE(N) STRINGISE(N)
#define __LINE_STR__ EXPAND_THEN_STRINGISE(__LINE__)

// MSVC-suitable routines for formatting &lt;#pragma message&gt;
#define __LOC__ __FILE__ "(" __LINE_STR__ ")"
#define __OUTPUT_FORMAT__(type) __LOC__ " : " type " : "

// specific message types for &lt;#pragma message&gt;
#define __WARN__ __OUTPUT_FORMAT__("warning")
#define __ERR__ __OUTPUT_FORMAT__("error")
#define __MSG__ __OUTPUT_FORMAT__("programmer's message")
#define __TODO__ __OUTPUT_FORMAT__("to do")
</code></pre>

Then to generate a message, do e.g.:

<pre><code>#pragma message ( __MSG__ "my message" )
</code></pre>

(From <a href="http://rhubbarb.wordpress.com/2009/04/08/user-compilation-messages-c-or-c/">http://rhubbarb.wordpress.com/2009/04/08/user-compilation-messages-c-or-c/</a>)

blocks|key|212172|text|你为什么不用|type|unstyled|depth|inlineStyleRanges|entityRanges|data|212173|#warning+WarningMessage|code-block|syntax|javascript|212174|或者可能是|212175|#error+ErrorMessage|212176|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

why don't you use

<pre><code>#warning WarningMessage
</code></pre>

or may be

<pre><code>#error ErrorMessage
</code></pre>

blocks|key|210035|text|在搜索了一些不同的文章后，我终于找到了这个在Visual+Studio+2010中工作的解决方案：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|210036|#define+STRINGIZE_HELPER(x)+#x
#define+STRINGIZE(x)+STRINGIZE_HELPER(x)
#define+__MESSAGE(text)+__pragma(+message(__FILE__+"("+STRINGIZE(__LINE__)+")"+text)+)+
#define+WARNING(text)+__MESSAGE(+"+:+Warning:+"+#text+)
#define+ERROR(text)+__MESSAGE(+"+:+Error:+"+#text+)
#define+MESSAGE(text)+__MESSAGE(+":+"+#text+)
#define+TODO(text)+WARNING(+TODO:+text+)|code-block|syntax|javascript|210037|您可以将其用作：|210038|WARNING(+This+will+be+a+compiler+warning+);
ERROR(+This+will+be+a+compiler+error+);
MESSAGE(+Well+this+is+what+I+have+to+say+about+this+code+);
TODO(+Still+have+to+fix+3D+rendering+);|210039|请注意，TODO()也会生成一个编译器警告；如果您不想将TODO注册为警告，只需使用以下代码：|210040|#define+TODO(text)+MESSAGE(+TODO:+text+)|210041|如果要在警告/错误/待办事项中显示函数名，请使用以下代码：|210042|#define+WARNING(text)+__MESSAGE(+"+:+Warning:+("+__FUNCTION__+"):+"+#text+)
#define+ERROR(text)+__MESSAGE(+"+:+Error:+("+__FUNCTION__+"):+"+#text+)
#define+MESSAGE(text)+__MESSAGE(+":+("+__FUNCTION__+"):+"+#text+)
#define+TODO(text)+__MESSAGE(+"+:+Warning:+TODO:+("+__FUNCTION__+")+"+#text+)|210043|entityMap^0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|V|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|W|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|X|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|Y|8|@]|9|@]|A|$]]|$1|M|3|N|5|D|7|Z|8|@]|9|@]|A|$E|F]]|$1|O|3|P|5|6|7|10|8|@]|9|@]|A|$]]|$1|Q|3|R|5|D|7|11|8|@]|9|@]|A|$E|F]]|$1|S|3|-4|5|6|7|12|8|@]|9|@]|A|$]]]|T|$]]

After some searching through different articles, I finally came to this solution which works in Visual Studio 2010:

<pre><code>#define STRINGIZE_HELPER(x) #x
#define STRINGIZE(x) STRINGIZE_HELPER(x)
#define __MESSAGE(text) __pragma( message(__FILE__ "(" STRINGIZE(__LINE__) ")" text) ) 
#define WARNING(text) __MESSAGE( " : Warning: " #text )
#define ERROR(text) __MESSAGE( " : Error: " #text )
#define MESSAGE(text) __MESSAGE( ": " #text )
#define TODO(text) WARNING( TODO: text )
</code></pre>

and you can use it as:

<pre><code>WARNING( This will be a compiler warning );
ERROR( This will be a compiler error );
MESSAGE( Well this is what I have to say about this code );
TODO( Still have to fix 3D rendering );
</code></pre>

Note that TODO() will also generate a compiler warning; if you don't want to register your TODOs as warnings just use this instead:

<pre><code>#define TODO(text) MESSAGE( TODO: text )
</code></pre>

If you want to display function name inside warnings/errors/TODOs, use this instead:

<pre><code>#define WARNING(text) __MESSAGE( " : Warning: (" __FUNCTION__ "): " #text )
#define ERROR(text) __MESSAGE( " : Error: (" __FUNCTION__ "): " #text )
#define MESSAGE(text) __MESSAGE( ": (" __FUNCTION__ "): " #text )
#define TODO(text) __MESSAGE( " : Warning: TODO: (" __FUNCTION__ ") " #text )
</code></pre>

blocks|key|2123382|text|它对我起作用的方式：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2123383|#define+_message_+"Warning+Msg:+"
#pragma+message(_message_"Need+to+do+something")|code-block|syntax|javascript|2123384|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

The way it works for me:

<pre><code>#define _message_ "Warning Msg: "
#pragma message(_message_"Need to do something")
</code></pre>

I want to put some warning or error into my code. I am using visual studio 2010.

I used <code>#error</code> and <code>#warning</code> in Xcode, but visual studio doesn't know those directives.

force warning/error 

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我想在我的代码中加入一些警告或错误。我使用的是visual studio 2010。我在Xcode中使用了#error和#warning，但visual studio不知道这些指令。

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