Difference between C and C++

C and C++ are both well-known low-level programming languages. Although the two languages ​​sound similar, only the two plus signs behind, their features & usage are significantly different.

C is a procedural programming language with a static system, and C++ is an extended version of C, with support for object-oriented programming. Therefore, learning C is appropriate and helps to improve the language in C++. Among the top programming languages, C and C++ are the two most popular choices.

Similarities Between C and C++

  1. Both languages ​​have similar syntax.
  2. The code structure of both languages ​​is the same.
  3. The complexity of both languages ​​is similar.
  4. They have the same basic syntax. Nearly all C operators and keywords are in C++ and have similar functionality.
  5. C++ has more extended semantics than C, but the basic grammar is the same.
  6. The underlying memory model of both is very close to hardware.
  7. Both languages ​​have similar concepts of stack, heap, file-scope and static variable.

 

Difference between C and C++

Parameters OLD C++
Programming model Structured or procedural programming language. Structured and object-oriented programming language.
History Developed by scientist Dennis Ritchie in 1972 at Bell Laboratories. Developed by Bjarne Stroustup in 1979.
Method Follow the top to bottom method. Follow the bottom-up method.
Key word Contains 32 keywords Contains 63 keywords
Datatypes Supports built-in data types. Supports both built-in and user-defined data types.
File extension .c .cpp
File header    
Allocate and release memory Use calloc() and malloc() for dynamic memory allocation and free() for de-allocating memory. Use new operator to allocate memory and delete operator to free memory.
Specify access Does not support access designation Support designated access
Security C doesn't have any security features so it can be manipulated by outsiders C++ is a secure language because it provides security features like data hiding and encapsulation
Reference variable No support Support
Overloading and Overriding functions No support Support
Exception handling C does not support exception handling directly, it uses exception handling functions C++ directly supports exception handling with the help of try – catch . block
Program division C is a procedural language, so code written in C is divided into separate blocks called functions C++ is an object-oriented language, so write code and divide it into classes and objects
Inline function No support Support
Direction type Function-oriented language Object-oriented language
Compatibility Code written in C can be run on a C++ compiler because C is the foundational language Code written in C++ language can run on C compiler because C++ language includes the concept of OOP
Data and functions Separate Packed together
Input and output functions The scanf() and printf() functions are used to get input and output respectively The functions cin and cout are used to take input and output respectively
Application Programming The C language is more suitable for low-level implementations like network drivers, text editors, assemblers, etc. The C++ language is more suitable for high-level implementations like game development, smart watches, embedded systems, etc.
Namespace To avoid conflicts and organize the code, a namespace is required but C doesn't support it Namespace support
Use by MySQL, Windows Kerne, Oracle Database, Telegram. Google Chrome, Torque 3-D games, Microsoft Office, .

 

Examples of C and C++

Add two integers

OLD

#include int main(){ int x, y, sum=0; printf("Enter the two integers x and y: "); scanf("%d %d", &x, &y); // tính tổng hai số nguyên sum = x + y; printf("%d + %d = %d", x, y, sum); return 0; }

C++

#include using namespace std; void main() { int a, b, sum=0; cout<<"Enter the value for two integers: "; cin>>a>>b; // tính tổng của hai số được lưu trong biến sum sum = a + b; // in tổng của hai số cout<<< " + " <<< " = " < 

Above is the basic difference between the two languages ​​C and C++. Hope the article helps you make the correct choice about whether to use C or C++ for programming.

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