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Difference between C and C++.
C programming Language
C is a general-purpose, high-level language that was originally developed by Dennis M. Ritchie to develop the UNIX operating system at Bell Labs. C was originally first implemented on the DEC PDP-11 computer in 1972.
In 1978, Brian Kernighan and Dennis Ritchie produced the first publicly available description of C, now known as the K&R standard.
The UNIX operating system, the C compiler, and essentially all UNIX application programs have been written in C. C has now become a widely used professional language for various reasons −
- Easy to learn
- Structured language
- It produces efficient programs
- It can handle low-level activities
- It can be compiled on a variety of computer platforms
C++ programming Language
C++ is a statically typed, compiled, general-purpose, case-sensitive, free-form programming language that supports procedural, object-oriented, and generic programming.
C++ is regarded as a middle-level language, as it comprises a combination of both high-level and low-level language features.
C++ was developed by Bjarne Stroustrup starting in 1979 at Bell Labs in Murray Hill, New Jersey, as an enhancement to the C language and originally named C with Classes but later it was renamed C++ in 1983.
C++ is a superset of C, and that virtually any legal C program is a legal C++ program.
Note − A programming language is said to use static typing when type checking is performed during compile-time as opposed to run-time.
Object-Oriented Programming
C++ fully supports object-oriented programming, including the four pillars of object-oriented development −
- Encapsulation
- Data hiding
- Inheritance
- Polymorphism
Differences
Following are the important differences between C and C++.
| Sr.No. | Key | C | C++ |
|---|---|---|---|
| 1 | Developer | C developed by Dennis Richie between 1969-1973 at AT&T Bell Labs. | C++ developed by Bjarne Stroustrup in 1979. |
| 2 | OOPS | C does not support OOPS concepts like polymorphism, encapsulation, and inheritance. | C++ is a object oriented programming and supports OOPS concepts like polymorphism, encapsulation, and inheritance. |
| 3 | Set | C is a subset of C++. | C++ is superset of C. All code of C can run in C++ but vice versa may or may not be true. |
| 4 | keywords | C has 32 keywords. | C++ has 52 keywords. |
| 5 | Procedural vs OOPS | C is a procedural programming language. | C++ supports both procedural as well as object oriented programming. |
| 6 | Data and Function | Data and Functions are separate in C. | GData and Functions are encapsulated together as object in C++. |
| 7 | Information Hiding | Information Hiding is not supported in C. | Information Hiding is supported in C++ via encapsulation. |
| 8 | Overloading | Function and Operator overloading is not supported in C. | Function and Operator overloading is supported in C++. |
| 9 | Function | C is function driven language. | C++ is Object driven language. |
| 10 | Structure | C structure do not support defining functions. | C++ Structure supports defining function. |
| 11 | Reference Variables | Reference Variables are not supported in C. | Reference Variables are supported in C++. |
| 12 | Virtual and friend functions | Virtual and friend functions are not supported in C. | Virtual and friend functions are supported in C++. |
| 13 | Exception Handling | Exception handling is not supported in C. | Exception handling is supported in C++. |
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