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Showing posts from February, 2019

Review of Manning's Functional Programming in C++

Last year I reviewed the pre-print manuscript of Manning's Functional Programming in C++ written by Ivan Čukić.
I really enjoyed reading the book. I enthusiastically support that the book
Offers precise, easy-to-understand, and engaging explanations of functional concepts.Who is this book for This book expects a reasonable working knowledge of C++, its modern syntax, and semantics from the readers. Therefore, reading this book might require a companion book for C++ beginners. I think that’s fair because FP is an advanced topic. C++ is getting more and more powerful day by day. While there are many FP topics that could be discussed in such a book, I like the practicality of the topics selected in this book.

Here's the table of contents at a glance. This is a solid coverage of functional programming concepts to get a determined programmer going from zero-to-sixty in a matter of weeks. Others have shared their thoughts on this book as well. See Rangarajan Krishnamoorthy&…

Unit Testing C++ Templates and Mock Injection Using Traits

Unit testing your template code comes up from time to time. (You test your templates, right?) Some templates are easy to test. No others. Sometimes it's not clear how to about injecting mock code into the template code that's under test. I've seen several reasons why code injection becomes challenging.

Here I've outlined some examples below with roughly increasing code injection difficulty. Template accepts a type argument and an object of the same type by reference in constructorTemplate accepts a type argument. Makes a copy of the constructor argument or simply does not take oneTemplate accepts a type argument and instantiates multiple interrelated templates without virtual functions Lets start with the easy ones.
Template accepts a type argument and an object of the same type by reference in constructor This one appears straight-forward because the unit test simply instantiates the template under test with a mock type. Some assertion might be tested in the mock c…