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In C++, extensibility relates to the way in which the language can be extended by adding new features using nothing more than the built-in features of the language itself, or by building upon the existing features found in the standard library or 3rd party libraries.
For instance, an array of int is a built-in data type, known as a C-style array because it was inherited from the C language. However, C-style arrays are difficult to work with because there's no built-in mechanism to determine an array's length. Even if we know the array's length in advance, in multi-threaded code it's all too easy for one thread to modify the length while another thread is operating upon the array, thus creating a race-condition where the pre-determined length no longer holds true for one of the threads which could lead to a (fatal) overflow.
However, C++ allows us to extend the capabilities of the language by creating new data types that can handle this type of problem gracefully. The new type simply needs to encapsulate a C-style array along with its size, treating the two as a single entity. Such a type already exists in the standard template library (STL); std::vector. However, a vector is not a built-in type, it is a completely new type. The STL is not part of the language itself -- it is just a library like any other -- but it provides a host of new types (mostly container types) that extend the language far beyond the capabilities of the built-in types, the majority of which came from C.
The STL types are general purpose; types that are common to the majority of everyday programmer needs, such as vectors, lists, queues, stacks, red/black trees and so on. However, programmer needs are many and varied, so while many of the STL types can be used as-is, there is often a need to specialise these types to suit a more specific task. Thus every new type you create extends the language further. And with a wealth of 3rd party libraries available, there is essentially no limit to the extensibility of the language. Indeed, the STL continues to evolve as a result of this extensibility, as does the language itself.
What else can I help you with?
What is the meaning of plus plus in c?
++a (plus plus a) is pre-incrementing operator to aa=10;printf("%d",++a); /* it will print 11 as ++a increment first a by 1 then prints it */printf("%d",a++); /*it will printf 10 as it is post _ increment operator , it prints the value a first then increment it by 1 */
In C plus plus what is the meaning of cant?
It has no meaning in C++. The name "cant" is undefined and there is no "std::cant" name defined by the C++ standard library. It's most-likely a user-defined name, but without seeing the definition or context in which it used it's impossible to say what its meaning is. In all likelihood it's a constant Boolean value, where can is true and cant is false (or vice versa depending on the logic of its usage).
Can you declare a method within a method in c or c plus plus?
C: there are no methods in C. C++: no.
What is the different of c and c plus plus?
c is procedure oriented and c++ is object oriented & much newer.
How A plus B plus C plus D plus 80 plus 90 equal to 100 what is the value of A B C and D?
If a + b + c + d + 80 + 90 = 100, then a + b + c + d = -70.
What do the two plus stand for in C plus plus?
The ++ in C++ refers to the postfix increment operator (operator++()). It's literal meaning is "the successor to C", in reference to the C language upon which the C++ language is based.
How does the use of the 'void' keyword differ in C plus plus vs. C?
It doesn't. Void has the same meaning in both.
Main meaning of turbo c plus plus?
Name of a compiler (and IDE) from Borland.
What is the meaning of plus plus in c?
++a (plus plus a) is pre-incrementing operator to aa=10;printf("%d",++a); /* it will print 11 as ++a increment first a by 1 then prints it */printf("%d",a++); /*it will printf 10 as it is post _ increment operator , it prints the value a first then increment it by 1 */
How do you prove if a is less than b then a plus c is less than b plus c?
I believe that's usually treated as an axiom, meaning you don't prove it.
What is b plus b plus b plus c plus c plus c plus c?
b+b+b+c+c+c+c =3b+4c
What is c plus c plus 2c plus c plus c equal?
c + c + 2c + c + c = 6c
B plus b plus b plus c plus c plus c plus c equals?
b + b + b + c + c + c + c = 3b + 4c
Symplify c plus c plus c plus c?
4c
What is c plus c plus c plus c plus c?
c + c + c + c + c = 5 * c.
Primary and secondary key in c and c plus plus?
There are no "primary and secondary keys" in c and c plus plus.
What is the meaning of star d in c plus plus programming?
If d is a pointer variable, then *d is the value stored in the memory address pointed to by d.
