We help IT Professionals succeed at work.

Check out our new AWS podcast with Certified Expert, Phil Phillips! Listen to "How to Execute a Seamless AWS Migration" on EE or on your favorite podcast platform. Listen Now

x

Boolean

stchsc
stchsc asked
on
Medium Priority
422 Views
Last Modified: 2010-04-02
I am writing a boolean variable to a file and I later need to read it into a boolean variable.  I first tried writing "TRUE" or "FALSE" to a file and read it into a boolean variable, but I did not have any luck.  I am now writing a "1" for true or a "2" for false to the file.  I read this into the boolean variable, but it doesn't seem to working either.

So, I am trying to use the CBool function that I have found, but have been unsuccessful.  Does anyone know how to use it or have another idea.  Some example code is desired.
Comment
Watch Question

Boolean variables in c++ represented as 1 for TRUE and 0 for FALSE. You can write the variable itself into a file, you don't have to use any symbols:

BOOL b=TRUE;
CFile fl("C:\\1.dat", CFile::modeWrite | CFile::modeCreate);
fl.Write(b, sizeof(BOOL))
fl.Close()

Author

Commented:
I am having trouble reading a "TRUE" or "FALSE" or "1" or "2" into a boolean variable from a file??  What to do?  I tried the code above without success.

Commented:
Please post a piece of code that opens file and writes the variable.

Author

Commented:
Thank you very much for the help.  However, I have solved the problem.  Thanks again.
Commented:
Unlock this solution with a free trial preview.
(No credit card required)
Get Preview

Commented:
There is small mistake

Pl. correct this as


    enum  boolean {FALSE,TRUE};

    void main(void)
    {
      boolean x,y,z;
      x = TRUE;
      y = FALSE;
    .......
    }

Author

Commented:
Thanks for the help, but I have already figured it out.
Unlock the solution to this question.
Thanks for using Experts Exchange.

Please provide your email to receive a free trial preview!

*This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

OR

Please enter a first name

Please enter a last name

8+ characters (letters, numbers, and a symbol)

By clicking, you agree to the Terms of Use and Privacy Policy.