Pre Processor output

Can any of known compilers output the result of pre pocessor?
For example:

Code:

---

#define d
#ifdef d
cout<<"ok";
#else
cout<<"no";
#end if

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Result will be

Code:

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cout<<"ok";

---

Yes, you could run something like this through the pre-compiler:

Code:

---

#define d
#ifdef d
  #define STR "OK"
#else
  #define STR ""
#endif

#include <iostream>
int main ( ) {
  std::cout << STR;
}

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$ g++ -E foo.cc > output.txt

It dumps a whole lot of stuff though, the standard header files are gigantic. You could do something clever to avoid it I suppose.

Quote:

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It dumps a whole lot of stuff though, the standard header files are gigantic.

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It is exactly what I want. I want to see all includes in one file.

Anyway, it would just be a matter of reading your compiler's documentation to find out what switch you need to use and then writing a file that lets you see what you want to see.

Quote:

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Originally Posted by citizen

Anyway, it would just be a matter of reading your compiler's documentation to find out what switch you need to use and then writing a file that lets you see what you want to see.

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Yes, it is exactly what I am doing. I didn't find any swtch in IDE options though and I am hopless.

I found it. I don't know why I didn't see it before. It is /P in my compiler.
Thank you.