Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
In Java, I use
if (a != null && a.fun());
by taking full advantage of short-circuit evaluation and expression are evaluated from left to right?
In C++, can I do the same? Are they guarantee to portable across different platform and compiler?
if (a != 0 && a->fun());
Yes, it is guaranteed for the “built in” types. However, if you overload && or || for your own types, short-circuited evaluation is NOT performed. For this reason, overloading these operators is considered to be a bad thing.