rogrammers developing financial, scientific, and numerical analysis applications often need to reinvent the wheel, implementing statistical functions for calculate mean, median, percentiles, and similar statistical data. This solution will show
ive years ago, I explained how to simulate heterogeneous containers by storing raw pointers to polymorphic objects in an STL container. C++ has come along way since: tuples now allow
enerally, STL containers handle their storage automatically and efficiently. Yet, there are cases when you need to regulate a container’s storage manually?for example when you want to trim or empty
++ implicitly converts the operands’ types in expressions that involve different datatypes. Here’s a few examples: int n=5;double d=n; //5 implicitly converted to 5.0if (n==d) //same here Many programmers don’t
our months ago, Microsoft publicized a list of features that could cause existing Visual C++ apps to break when migrated to Visual Studio 2005. Many of these features are core
A lambda expression enables you to define an unnamed function?directly on the call site of an algorithm. Such unnamed functions are chiefly useful in functional programming, generic libraries, and scientific
td::auto_ptr is the only smart pointer class available in C++98. Alas, since this class is neither assignable nor copy-constructible, creating containers of auto_ptr objects is illegal. This limitation has been
++ pundits recommend that you replace built-in arrays with st::vector across the board. Sometimes however, built-in arrays are unavoidable due to their unsurpassed efficiency or because your app must interact
isk defragmenters, antiviruses, backup utilities, and file compression tools are a few examples of applications that operate on directories. Alas, standard C++ doesn’t have a library for manipulating directories. Consequently,