A data type simply means the type of data represented by a variable or constant, or the return type of a function. C++ is a strongly-typed language thus all variables and constants must have a data type associated with them. The data type may be a primitive data type such as int or char, which are used as the building blocks for more complex data types. Primitives, typedefs, enums and classes (which includes structs and unions), are used to provide the definitions for all the various data types that you can employ within a program. Variables and constants provide instances of those data types. Pointer variables must also have a data type associated with them to determine the type of data being referred to, even if it is void* which simply means it points to any data type, the actual data type being determined at runtime. However, in C++, void* is rarely required since polymorphism allows programmers to treat objects generically; there is rarely a need to know the actual runtime type of an object, since that information is provided automatically by the object's own virtual table. The programmer need only know the generic data type and call the appropriate virtual methods of that type in order to invoke the specific behaviour of the actual data type.
A data type (or simply type) is an identifier (either a reserved word or keyword, or an user-defined identifier) that determines how much memory is allocated to an instance of the type and how that memory is both organised and interpreted. User-defined types build upon the primitive, built-in data types such as char, short, long, float and double, to produce new data types, which can themselves be combined to build yet more complex data types. The typedef, struct, class and union keywords are used to define new data types, each of which is identified by an user-defined name, the type itself. In addition to the primitive data types, the C++ standard template library (STL) also provides several built-in, complex data types including vector, map and list, which can themselves be used to produce more complex user-defined data types.
A data type is a classification specifying one of various type of data.
there are mainly 3 types of data types in C -
Primary or inbuilt data types e.g. int, char, float, double.
derived data types e.g. arrays, pointers.
user defined data type e.g. structure,union
no
(C and Lisp, ... data type") was adopted by many later languages, such as ALGOL 68 (1970), Java, and C#. ... C++ has a separate Boolean data type ( 'bool' ), but with automatic conversions from ... "Report on the Algorithmic Language ALGOL 68
these are difference in between c and c++: a) C is a SPL and C++ is a OOP. b) C has not concept of object but C++ has this feature. c) C has not 'class' name data type but C++ has.
A primitive data type is built into the language - int, char, long, etc. A non-primitive data type is am abstract data type that is built out of primitive data types - linked list, queue, stack, etc.
C++ is only partially OOP because it is a superset of C and, for the sake of backward compatibility, retains the concept of primitive data types (such as integrals like char and int) and pointer data types, which are all strictly non-object-oriented. In Java and C#, there is no concept of a primitive data type. Even integral types such as int are treated as objects and there is no concept of a pointer data type.
Use "typedef" : both in C and C++.
no
doesn't return the value.
When you type '1' in a C++ program, it is considered to be of character data type(char). When you type 1, it is considered to be of integer data type.
There is no such thing. Logic is bitwise operation, not a data type.
(C and Lisp, ... data type") was adopted by many later languages, such as ALGOL 68 (1970), Java, and C#. ... C++ has a separate Boolean data type ( 'bool' ), but with automatic conversions from ... "Report on the Algorithmic Language ALGOL 68
Basic types (primitive data types) have no methods associated with them.
these are difference in between c and c++: a) C is a SPL and C++ is a OOP. b) C has not concept of object but C++ has this feature. c) C has not 'class' name data type but C++ has.
A primitive data type is built into the language - int, char, long, etc. A non-primitive data type is am abstract data type that is built out of primitive data types - linked list, queue, stack, etc.
C++ is only partially OOP because it is a superset of C and, for the sake of backward compatibility, retains the concept of primitive data types (such as integrals like char and int) and pointer data types, which are all strictly non-object-oriented. In Java and C#, there is no concept of a primitive data type. Even integral types such as int are treated as objects and there is no concept of a pointer data type.
You can use cin which located in iostream.h You have to use certain data type to read string, for instance, array of char
There is no such keyword or data type known as tbuffer in C++. It's most likely an user-defined identifier, possibly a text buffer. But without knowing its actual type or its context it's impossible to say what it means.