Use the Capabilities of the Module!

Essential Tools Module User's Guide
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13.10 Use the Capabilities of the Module!

By far the most common mistake is to not use the full power of the module. If you find yourself writing a little "helper" class, consider why you are doing it. Or, if what you are writing seems a little clumsy, then maybe there's a more elegant approach. A bit of searching through the Essential Tools Module manuals may uncover just the thing you are looking for!

Here is a surprisingly common example:

main(int argc, char* argv[]){
   char buf[120];                   //uh oh: possible overflow
   ifstream fstr(argv[1]);
   RWCString line;
   while (fstr.readline(buf,sizeof(buf)) {
     line = buf;                                //hmm: extra copy
     cout << line;
   }
}

This program reads lines from a file specified on the command line and prints them to standard output. By using the full abilities of the RWCString class it could be greatly simplified as follows:

main(int argc, char* argv[]){
   ifstream fstr(argv[1]);
   RWCString line;
   while (line.readLine(fstr)) {
     cout << line;
   }
}

There are countless other such examples. The point is, if it looks awkward to you, most likely there's a better way!

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