Redirect stdout?

This is a discussion on Redirect stdout? within the C++ Programming forums, part of the General Programming Boards category; Is there any mechanism for trapping stdout to a file under Win98? A language feature or something I could do ...

  1. #1
    Evil Member
    Join Date
    Jan 2002
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    638

    Redirect stdout?

    Is there any mechanism for trapping stdout to a file under Win98? A language feature or something I could do to the console?

  2. #2
    Evil Member
    Join Date
    Jan 2002
    Posts
    638
    n/m found it.

  3. #3
    Evil Member
    Join Date
    Jan 2002
    Posts
    638
    For those of you interested:

    Code:
    /*
    Info and includes
    */
    
    #define STDOUT_TO_FILE "outfile.txt"
    
    /*
    declarations and anything else
    */
    
    int main () {
       #ifdef STDOUT_TO_FILE
          FILE* newoutput = freopen(STDOUT_TO_FILE, "w", stdout );
          if (!newoutput) {
             cerr << "Failed to redirect stdout";
             return (1);
          }
       #endif
    
    /* 
    body of main()
    */
    
       #ifdef STDOUT_TO_FILE
          fclose(newoutput);
       #endif
    
       return 0;
    }
    Everything sent to cout will be sent to the file identified in the #define. Any other output will be unaffected.

    Comment out the define and all is as it was, the other stuff isn't even processed.

    This would probably not work with things like conio.h and anything that writes directly to the video memory.

    Dunno if this is faqworthy or not, but definitely useful information.

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