Explore the connections and differences between C language and C

Exploring the connections and differences between C language and C

C language and C are two popular programming languages. They have many things in common and many the difference. This article will explore the connections and differences between the two languages, and compare them with specific code examples.

The connection between C language and C:

1. C is developed based on C language, so there are many similarities between the two, such as grammatical structure, basic Data type etc.
2. C code can usually compile and run correctly in C, which is why C is called "C with Classes".
3. C can directly call functions in C language because C supports the function calling convention of C language.

Difference between C language and C:

1. Object-oriented: C is a language that supports object-oriented programming, so it has classes, inheritance, polymorphism, etc. Features, while C language is a procedural programming language and does not support object-oriented programming.
2. Template: C introduces the concept of template, which can realize generic programming, but C language does not support templates.
3. Exception handling: C supports exception handling mechanism, which can catch and handle exceptions through try-catch blocks, but there is no exception handling mechanism in C language.
4. Name space: C introduces the concept of name space to avoid naming conflicts, but C language does not have the concept of name space.

The following is a specific code example to show the connection and difference between C language and C:

// C language code example
#include <stdio.h>

void helloC() {
    printf("Hello, this is a C function!
");
}

int main() {
    helloC();
    return 0;
}

//C code example
#include <iostream>

void helloCpp() {
    std::cout << "Hello, this is a C function!" << std::endl;
}

int main() {
    helloCpp();
    return 0;
}

As can be seen from the above code example, the function definition methods of C language and C are different. C uses the namespace std and the output stream std::cout. In addition, C also supports object-oriented features such as classes, inheritance, and polymorphism, which are not available in the C language.

In general, the connection between C language and C is mainly reflected in its grammatical structure and basic data types, while the differences are mainly reflected in object-oriented, templates, exception handling, namespaces, etc. When developers choose which language to use, they can decide based on specific needs and project characteristics. Both have their unique advantages and applicable scenarios.

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