Binary data is intrinsically numeric, therefore every type (including user-defined types) can be represented as a number. Even an executable or a file is nothing more than an extremely large number, in binary, made up of a specific sequence of bits grouped in various ways (bytes, words, dwords, etc), each of which is a number in its own right.
What these numbers actually represent is purely a matter of interpretation. While a char type is typically used to represent an alphanumeric character or symbol, it is really just a character code (a number in the range 0 to 255) that can be mapped to a symbolic character in the ASCII character set. A char is therefore no different to a byte and can represent an actual number just as easily as it can a character.
The primitive types are: unsigned short int, short int, unsigned long int, long int, int, unsigned int, char, wchar_t, bool, float, double and long double, each of which is intrinsically numeric. All user-defined types, including classes and structures, are derived from some combination of these primitive types.
C++ has a set of fundamental types corresponding to the most common basic storage units of a computer and the most common ways of using them to hold data.
All the standard primitives and structures, plus objects and user-defined data types can be used in C++. The only limit is your imagination.
'int' is one of the built-in data-types, it is meant to hold integer values.
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't integrate C++ source code directly into Visual Basic code. In order to make use of code written in another language, including C++, you must compile that source to produce a DLL. You can then link to that DLL via Visual Basic. The only caveat is that you must replace the C++ data types in the function declarations with the equivalent Visual Basic data types, such as 'Byte' for a C++ unsigned char, or 'Single' for a C++ float.
Describe the basic data types in C Describe the basic data types in C
Whatever data you need. If you need the algorithm to operate with many different types of data, and you are programming in C++, you could use generic programming practices and use templates.
'int' is one of the built-in data-types, it is meant to hold integer values.
Constant data and constant functions.
Use "typedef" : both in C and C++.
Although C++ inherits malloc/calloc, realloc and free from C, programmers are encouraged to use the object-oriented operators, new and delete instead. Not only are they much easier to use, they can also be used with primitive data types.
doesn't return the value.
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't integrate C++ source code directly into Visual Basic code. In order to make use of code written in another language, including C++, you must compile that source to produce a DLL. You can then link to that DLL via Visual Basic. The only caveat is that you must replace the C++ data types in the function declarations with the equivalent Visual Basic data types, such as 'Byte' for a C++ unsigned char, or 'Single' for a C++ float.
Basic types (primitive data types) have no methods associated with them.
Describe the basic data types in C Describe the basic data types in C
Object-oriented programming is a feature in C++ that allows you to better model real-world objects. An object is an instance of a class, which is a data structure in C++ that allows you to group different, but related types of data together.
Whatever data you need. If you need the algorithm to operate with many different types of data, and you are programming in C++, you could use generic programming practices and use templates.
Decimal numbers are real numbers. In C and C++ we use the float, double and long double data types to represent real numbers.