By submitting your information, you agree that devx.com may send you DevX offers via email, phone and text message, as well as email offers about other products and services that DevX believes may be of interest to you. DevX will process your information in accordance with the Quinstreet Privacy Policy.
There are const variables that arean't constant expressions; there are also constant expressions that don't have an overt const qualifier. Confused? Knowing the rules will help you avoid common mishaps.
onstant expressions are tricky. Not all of them have an overt const qualifier. Furthermore, in some cases, a const-qualified variable is just a constant, but not a constant expression. These nuances aren't just bits of C++ trivia. Rather, they affect the correctness of your code and its performance. The following sections explain the rules of constant integral expressions and show how to avert common mishaps.
How do you know whether an expression is a constant expression? How do you turn a non-constant expression into a constant expression when necessary?
onstant expressions are tricky. Not all of them have an overt 
