Junk after C++ string when returned

Question

I\'ve just finished C++ The Complete Reference and I\'m creating a few test classes to learn the language better. The first class I\'ve made mimics the Java StringBuilder class

Answer 1

You need to null terminate the string. That null character tells the computer when when string ends.

char * copy = new char[ length + 1];
for(int i = 0; i < length; ++i) copy[i] = stringArray[i];
copy[length] = 0; //null terminate it

Just a few things. Declare the int variable in the tighest scope possible for good practice. It is good practice so that unneeded scope wont' be populate, also easier on debugging and kepping track. And drop the 'register' keyword, let the compiler determine what needs to be optimized. Although the register keyword just hints, unless your code is really tight on performance, ignore stuff like that for now.