Lazy statements? Sure. There are lazy versions of the C++ statements we all know and love. For example:
if_(arg1 > 5) [ std::cout << arg1 ]
Say, for example, we wish to print all the elements that are greater than 5 (separated by a comma) in a vector. Here's how we write it:
std::for_each(v.begin(), v.end(), if_(arg1 > 5) [ std::cout << arg1 << ", " ] );
Learn more about statements here.