Home > C++11 > Make Simple Tasks Simple

Make Simple Tasks Simple

In the slide deck that Bjarne Stroustrup presented for his “Make Simple Tasks SimpleCppCon keynote speech, he walked through a progression of refactorings that reduced an (arguably) difficult-to-read, multi-line, C++98 code segment (that searches a container for an element matching a specific pattern) into an expressive, C++11 one liner:

Simplify

Some people may think the time spent refactoring the original code was a pre-mature optimization and, thus, a waste of time. But that wasn’t the point. The intent of the example was to illustrate several features of C++11 that were specifically added to the language to allow sufficiently proficient programmers to “make simple tasks simple (to program)“.

Note: After the fact, I discovered that “MemVec” should be replaced everywhere with “v” (or vice versa), but I was too lazy to fix the pic :). Can you find any other bugs in the code?

  1. February 5, 2015 at 2:28 am

    I have recently written a blog post with a similar algorithm and was taught std::any_of in the comments: http://arne-mertz.de/2015/02/know-your-libraries/ so in your case it would be “return std::any_of(begin(v), end(v), LookForPattern);”

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