alternative to ios::app

[bazanaka]

I have to do some appending output for a school assignment although was told not to use "ios::app" in the code. Here is the funtion with the ios::app... although I have no idea how to do it otherwise. Any suggestions?

void FindWord(char a[], char b[], int count)
{ 
    //define the ofstream and set the operation to append on output
    ofstream outFile;
    outFile.open("Output.txt", ios::app);
    
    int k, j;
    
    //find how long the magic words are
    for(j=0; b[j] != '\0'; j++);
    
    //check to see if the array contains the magic words and note location
    for(int i=0 ; a[i]!='\0' ; i++)                 
    {  
       k=0;
       
       while(a[i+k] == b[k] && k < j && a[i+k] != '\0')
       {
           k++
       }
       
       if (k==j)
       {
                
             //display the where the magic word is found within the line
             cout<<"The magic word \""<<b<<"\" is found at column "
                 <<(i+1)<<" of line "
                 <<count<<"."<<endl;
                 
             outFile<<"The magic word \""<<b<<"\" is found at column "
                 <<(i+1)<<" of line "
                 <<count<<"."<<endl;
       }
       
    }
    
}

[Bazzy]

You can replace ios::app with 8 which is the numeric value of it (see your implementation of xiosbase).
If you want to avoid automatic casting, use (ios::_Openmode)8

[firedraco]

You could also use the constructor of ofstream, it takes a char* and will open the file.

[Bazzy]

But you have to put there the ios::app (or its equivalents) too

[firedraco]

Oh yeah, the pointer goes to the beginning of the file...so you would have to move it to the end after that.