C++ Primer, Fifth Edition

10.3.4. Binding Arguments

Lambda expressions are most useful for simple operations that we do not need to use in more than one or two places. If we need to do the same operation in many places, we should usually define a function rather than writing the same lambda expression multiple times. Similarly, if an operation requires many statements, it is ordinarily better to use a function.

It is usually straightforward to use a function in place of a lambda that has an empty capture list. As we’ve seen, we can use either a lambda or our isShorter function to order the vector on word length. Similarly, it would be easy to replace the lambda that printed ...