![Derived Type
DEPARTMENT OF COMPUTER ENGINEERING , SCOE,KOPARGAON 12
• ARRAYS:
➢An array is a fixed sequence collection of elements of same
data type that share a common name.
➢ General syntax is:
data_type array_name[size];
➢ Example:
int a[10];](https://image.slidesharecdn.com/1-250523110742-d3263718/85/1-5-Data-Types-in-C-and-Its-Details-pdf-12-320.jpg)
1.5 Data Types in C++ and Its Details.pdf
- 1. Sanjivani Rural Education Society’s Sanjivani College of Engineering, Kopargaon-423 603 (An Autonomous Institute, Affiliated to Savitribai Phule Pune University, Pune) NAAC ‘A’Grade Accredited, ISO 9001:2015 Certified Department of Computer Engineering (NBA Accredited) Subject- Object Oriented Programming (CO212) Unit 1 – Fundamentals of OOP Topic – 1.5 Data Types in C++ Prof. V.N.Nirgude Assistant Professor E-mail : nirgudevikascomp@sanjivani.org.in Contact No: 9975240215
- 2. Data type DEPARTMENT OF COMPUTER ENGINEERING , SCOE,KOPARGAON 2 ➢ A data type specifies the type of value a variable can hold. ➢ General syntax of declaration of data type is: data_type variable_name; ➢ Example: int a;
- 3. C++ DATATYPES USER-DEFINED TYPE BUILT-IN TYPE DERIVED TYPE INTEGRAL TYPE VOID FLOATING TYPE STRUCTURE UNION CLASS ENUMERATION ARRAY FUNCTION POINTER int char float double DEPARTMENT OF COMPUTER ENGINEERING , SCOE,KOPARGAON 3
- 4. INTEGRAL DATATYPE INTEGER DATATYPE: ➢ Keyword: int ➢ Storage space: two bytes ➢ Range of int: -32768 to 32767 CHARACTER DATATYPE: ➢ Keyword: char ➢ Storage space: 1 byte ➢ Range of char: -128 to 127 INTEGRAL TYPE int char DEPARTMENT OF COMPUTER ENGINEERING , SCOE,KOPARGAON 4
- 5. FLOAT DATATYPE ➢ Keyword: float ➢ Storage space: 4 bytes ➢ Range of float: 3.4e-38 to 3.4e+38. FLOATING TYPE float double DEPARTMENT OF COMPUTER ENGINEERING , SCOE,KOPARGAON 5
- 6. • Type void was introduced in ANSI C. Two normal use of void: ➢ To specify the return type of a function when it is not returning any value. ➢ To indicate an empty argument list to a function. Eg:- void function-name ( void ) VOID DATATYPE BUILT-IN TYPE VOID DEPARTMENT OF COMPUTER ENGINEERING , SCOE,KOPARGAON 6
- 7. User Defined Type C++ DATATYPES USER-DEFINED TYPE STRUCTURE UNION CLASS ENUMERATION DEPARTMENT OF COMPUTER ENGINEERING , SCOE,KOPARGAON 7
- 8. User Defined Type DEPARTMENT OF COMPUTER ENGINEERING , SCOE,KOPARGAON 8 • STRUCTURES: ➢ Structures are used for grouping together elements with dissimilar types. ➢ The general syntax of a structure:- struct struct_name { Data_type member1; . . . . . };
- 9. User Defined Type DEPARTMENT OF COMPUTER ENGINEERING , SCOE,KOPARGAON 9 • Unions: ➢ Unions are conceptually similar to structures as they allow us to group together dissimilar type elements inside a single unit.
- 10. User Defined Type DEPARTMENT OF COMPUTER ENGINEERING , SCOE,KOPARGAON 10 • CLASSES: ➢The entire set of data and functions can be defined data type with the help of a class. ➢ Once a class has been defined, we can create objects belonging to that class. ➢ Example: fruit mango; made a user- any number of ➢ Created an object mango belonging to the class fruit.
- 11. Derived Type C++ DATATYPES DERIVED TYPE ARRAY FUNCTION POINTER DEPARTMENT OF COMPUTER ENGINEERING , SCOE,KOPARGAON 11
- 12. Derived Type DEPARTMENT OF COMPUTER ENGINEERING , SCOE,KOPARGAON 12 • ARRAYS: ➢An array is a fixed sequence collection of elements of same data type that share a common name. ➢ General syntax is: data_type array_name[size]; ➢ Example: int a[10];
- 13. Derived Type DEPARTMENT OF COMPUTER ENGINEERING , SCOE,KOPARGAON 13 • FUNCTIONS: ➢ A function is a group of statements that together perform a task. ➢Every c++ program has at least one function, which is main(). void main() { Statements; }
- 14. Derived Type DEPARTMENT OF COMPUTER ENGINEERING , SCOE,KOPARGAON 14 • POINTERS: ➢ A pointer is a variable that holds a memory address. ➢ General syntax to declare pointer is:- Data_type *pointer_name; ➢ Example: int *p;
- 15. Thank You.. DEPARTMENT OF COMPUTER ENGINEERING , SCOE,KOPARGAON 15