Writing an integer into a file

This is a discussion on Writing an integer into a file within the C Programming forums, part of the General Programming Boards category; Hi, I am new to C programming. I am trying to write an integer into a file using built-in fwrite ...

  1. #1
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    Oct 2010
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    Writing an integer into a file

    Hi,

    I am new to C programming. I am trying to write an integer into a file using built-in fwrite function in C. After writing the integer into file it becomes unreadable(^@^@.. characters). Can you please let me know how to write an integer into a file so that it is readable ?. I am using the following code.
    Code:
    void main(){
        int a = 10;
        int *p = &a;
        FILE *fp = fopen("Ascii.txt", "w");
        fwrite(p,sizeof(int),1,fp);
        fclose(fp);
    }
    Regards,
    Srikkanth

  2. #2
    Registered User
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    What did you expect? There's a difference between the integer value 10 and its textual representation in ASCII. Use fprintf with the %d specifier if you want the integer to written as ASCII text.

  3. #3
    Registered User
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    fwrite is for binary data. Normal text data is handled by

    Code:
    fprintf(NameOfFilePointer, "%d", myIntegerVariableName);

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