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:

• Declarations and definitions

• Scope of a C++ object or function

• Program definition and linkage rules

• Startup and termination

• L-values and r-values

• Temporary Objects

• Alignment

• alignof and alignas

• Trivial, standard-layout and POD types

C++ Language Reference