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Part 1
Yes, you are right. I am glad I do not work as a Text-Preprocessor...
Part 2
Not when I write
PREFIX(FILE1)
That would indeed become
_T("FOOFILE1")
Let's think the unthinkable, let's do the undoable, let's prepare to grapple with the ineffable itself, and see if we may not eff it after all.
Douglas Adams, "Dirk Gently's Holistic Detective Agency"
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you're probably right, but infortunately, i have no compiler with me at the moment.
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Hi jhwurmbach,
I think your code does not compile. Are there anything wrong?\
<br />
#define PREFIX(x) _T("FOO##x");<br />
<br />
<br />
int main()<br />
{<br />
<br />
const TCHAR* SecondArray [2] = {PREFIX(_T("FILE1")), PREFIX(_T("FILE2"))};<br />
<br />
TCHAR* p = NULL;<br />
p = SecondArray [0];<br />
p = SecondArray [1];<br />
<br />
<br />
return 0;<br />
}<br />
main.cpp(9) : error C2143: syntax error : missing '}' before ';'
main.cpp(9) : error C2143: syntax error : missing ';' before ','
main.cpp(12) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
main.cpp(12) : error C2040: 'p' : 'int' differs in levels of indirection from 'TCHAR *'
main.cpp(12) : error C2065: 'SecondArray' : undeclared identifier
main.cpp(13) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
main.cpp(13) : error C2040: 'p' : 'int' differs in levels of indirection from 'TCHAR *'
main.cpp(16) : error C2059: syntax error : 'return'
main.cpp(17) : error C2059: syntax error : '}'
main.cpp(17) : error C2143: syntax error : missing ';' before '}'
main.cpp(17) : error C2059: syntax error : '}'
regards,
George
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As toxcct said quite rude, you do not bother to read up the hints we give you.
The way you defined the macro, the line looks to the compiler like
const TCHAR* SecondArray [2] = {_T("FOO_T("FILE1")");, _T("FOO_T("FILE2")");};
And you wonder why it does not compile?
Remember: ##x in the macro-definition is replaced with whatever is written in the braces after PREFIX
Let's think the unthinkable, let's do the undoable, let's prepare to grapple with the ineffable itself, and see if we may not eff it after all.
Douglas Adams, "Dirk Gently's Holistic Detective Agency"
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Sorry jhwurmbach, it is my mistake to add an additional ; sign. 
Now the code works. You are so cool.
regards,
George
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George_George wrote: Now the code works.
It still produces garbage, as long as you don't do something about the _T
Maybe you understand now why we were not too keen to suggest macros.
Let's think the unthinkable, let's do the undoable, let's prepare to grapple with the ineffable itself, and see if we may not eff it after all.
Douglas Adams, "Dirk Gently's Holistic Detective Agency"
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Hi jhwurmbach,
I have tested that the code works as expected, adding FOO to prefix too all constant string. What do you mean produces garbage?
It is appreciated if you could show some code.
regards,
George
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Hi toxcct,
Your code does not compile. Have I correctly applied your ideas?
<br />
#define PREFIX(x) _T("FOO")##x<br />
<br />
int main()<br />
{<br />
<br />
const TCHAR* SecondArray [2] = {_T("FILE1"), _T("FILE2")};<br />
<br />
TCHAR* p = NULL;<br />
p = PREFIX(SecondArray [0]);<br />
p = PREFIX(SecondArray [1]);<br />
<br />
<br />
return 0;<br />
}<br />
Compile error,
main.c(11) : error C2146: syntax error : missing ';' before identifier 'SecondArray'
main.c(12) : error C2146: syntax error : missing ';' before identifier 'SecondArray'
regards,
George
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hey you ! 
not only you don't copy my code correctly, but you modify it wrngly and you vote my post without even knowing what you're talking about
go to hell with you macro. if you can't play with your compiler to test so things, and read the C++ doc, then don't expect me to answer you anyfurther. 
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Hi toxcct,
Actually your code does not compile, could you try please? I have tried twice. If there is any mistake I have made in the code, please feel free to let me know.
<br />
#define PREFIX(x) _T("FOO##x");<br />
<br />
<br />
int main()<br />
{<br />
<br />
const TCHAR* SecondArray [2] = {PREFIX(_T("FILE1")), PREFIX(_T("FILE2"))};<br />
<br />
TCHAR* p = NULL;<br />
p = SecondArray [0];<br />
p = SecondArray [1];<br />
<br />
<br />
return 0;<br />
}<br />
main.cpp(9) : error C2143: syntax error : missing '}' before ';'
main.cpp(9) : error C2143: syntax error : missing ';' before ','
main.cpp(12) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
main.cpp(12) : error C2040: 'p' : 'int' differs in levels of indirection from 'TCHAR *'
main.cpp(12) : error C2065: 'SecondArray' : undeclared identifier
main.cpp(13) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
main.cpp(13) : error C2040: 'p' : 'int' differs in levels of indirection from 'TCHAR *'
main.cpp(16) : error C2059: syntax error : 'return'
main.cpp(17) : error C2059: syntax error : '}'
main.cpp(17) : error C2143: syntax error : missing ';' before '}'
main.cpp(17) : error C2059: syntax error : '}'
regards,
George
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George_George wrote: Actually your code does not compile, could you try please
you're an idiot, you cannot even copy paste correctly.
have you seen a ; after my macro definition ?
certainly not. that's certainly it though. 
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Be patient, mon ami
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.
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all he deserves is let down on is crap 
he doesn't even understand all we explain to him, but still he thinks he has the right to vote anyhow.
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toxcct wrote: he doesn't even understand all we explain to him, but still he thinks he has the right to vote anyhow
I know, this is very unpleasant
BTW using the token-pasting operator with string is tricky, I had to fight a bit before finding the way out [^].
It was only for academical interest however: I keep thinking the search-replace tool of his IDE was more valuable there.
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.
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Sorry, it is my carelessness. I have removed the ; sign and it works! Cool!
have a good weekend,
George
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I want to change windows size of SDI project(CFromView).
what's function can support this issue
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Do you tried already MoveWindow?
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Hello,
Have you checked SetWindowPos() method of CWnd.That might help to change the size of the window .
Pritha
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Hello,
Make your question clear Hamid?
Prithaa
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Hello,
Oh Sorry, I thought you were asking a question about SetWindowPos().
Prithaa
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Dont worry I think my answer was not clear.;)
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Hello everyone,
I found that for an application, if I specify the entry point function (e.g. main), the performance of startup will be greatly improved.
My questions are,
1. If no entry point is specified, how will debugger of Visual Studio find the entry point function? Will the time to search entry point function long?
For example, in my application, I defined the main function like this,
int main(void)
how will debugger treat main as the start point to execute (I set a break point to this function if I do not specify the entry point, then after a couple of minutes after pressing F5 to trigger debugger, debugger will jumps to main)?
If I specify the entry point to main, then debugger will directly jumps to this function after F5 debugging.
2. Specify entry point is a way to improve performance?
thanks in advance,
George
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George_George wrote: I found that for an application, if I specify the entry point function (e.g. main), the performance of startup will be greatly improved.
You are skipping the Windows-startup-code. That may or may not be a problem for a simple test application of a complexity comparable with "Hello World!". It will be for any real application.
Let's think the unthinkable, let's do the undoable, let's prepare to grapple with the ineffable itself, and see if we may not eff it after all.
Douglas Adams, "Dirk Gently's Holistic Detective Agency"
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