C++ is a statically typed, compiled, general-purpose, case-sensitive, irregular programming language that supports procedural programming, object-oriented programming and generic programming.
C++ is considered a mid-level language that combines the features of high-level and low-level languages.
C++ was designed and developed by Bjarne Stroustrup in 1979 at Bell Laboratories in Murray Hill, New Jersey. C++ further extended and improved the C language, originally named C with classes and later renamed C++ in 1983.
C++ is a superset of C. In fact, any legal C program is a legal C++ program.
C++ storage class syntax
Storage classes define the scope (visibility) and lifetime of variables/functions in a C++ program. These specifiers are placed before the type they modify. The storage classes available in C++ programs are listed below:
auto
register
static
extern
mutable
thread_local (C++11)
Starting with C++ 11, the auto keyword is no longer a C++ storage class specifier, and the register keyword is deprecated.
C++ storage class example
auto f=3.14; //double
auto s("hello"); //const char*
auto z = new auto(9); // int*
auto x1 = 5, x2 = 5.0, x3='r';//Error, must be initialized to the same type