A template definition can be #included in several translation units (source files). However, each time it is #included the definition is recompiled. Using large template definitions can increase compilation time
In some rare cases, it is useful to disallow further derivation of a class. Classes that implement system API or sensitive security management are good examples for that. Declaring the
C++ defines a hierarchy of standard exceptions that are thrown at run time when abnormal conditions arise, such as when operator new fails. The standard exception classes are derived from
The preprocessor #include directive appears in two flavors: #include < vector > // angular brackets and #include “myclass.h” // quotes The two are not interchangeable. The angular-bracket version applies to