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03.16.2003 at 11:32AM PST, ID: 20552640
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does the underscore or double underscore mean something in c++?

Asked by takkie in C Programming Language

Tags: underscore, does, double, what

there are some variables that have some leading underscores (_) or (__) infront of a variable...does that mean anything?

I am not looking for answers like, leading underscores for a variable name is valid. I understnad that...but i have seen some codes, for example, look below.


class CMyClass  
{
public:
     __declspec(dllexport)  CString SayHello (CString strName);
     __declspec(dllexport)  CMyClass();
     __declspec(dllexport)  virtual ~CMyClass();

};

why do they design declspecto have 2 leading underscores? There are some with just 1 leading underscores...

from the books i read for c++, i dont see any explanation of this...
anyhelp?

by the way, i asked a question last week, but didnt close it yet, i have an answer to accept...but i cant find that question...how do i see what are the qeustions i have asked in experts-exchange.com??

thanks,
takkieStart Free Trial
 
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[+][-]03.16.2003 at 12:12PM PST, ID: 8147340

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[+][-]03.16.2003 at 12:25PM PST, ID: 8147379

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[+][-]03.16.2003 at 01:25PM PST, ID: 8147588

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[+][-]03.16.2003 at 01:48PM PST, ID: 8147639

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[+][-]03.16.2003 at 02:28PM PST, ID: 8147761

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[+][-]03.16.2003 at 08:30PM PST, ID: 8149369

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[+][-]03.16.2003 at 08:50PM PST, ID: 8149434

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About this solution

Zone: C Programming Language
Tags: underscore, does, double, what
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Solution Provided By: efn
Participating Experts: 4
Solution Grade: A
 
 
 
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