This section explains concepts that are critical to understanding C++. C programmers will be familiar with many of these concepts, but there are some subtle differences that can cause unexpected program results. The following topics are included:

• C++ type system
• Scope
• Translation units and linkage
• main function and command-line arguments
• Program termination
• Lvalues and rvalues
• Temporary objects
• Alignment
• Trivial, standard-layout and POD types

C++ Language Reference