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C: Difference between revisions

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>Thomas anderson
>Thomas anderson
Line 33: Line 33:
int main(void)
int main(void)
{
{
     printf("hello, world\n");
     printf("Hello, world\n");
}
}
</pre>
</pre>


[[Category:Programming languages]]
[[Category:Programming languages]]

Revision as of 20:43, 9 February 2014

C is a programming language designed for application and systems programming. It was created by the late master himself, Dennis Ritchie, so that he could create Unix. C is standardized by ISO and is currently at the C11 standard.

C propaganda.jpg

Qualities

C is a very simple language, whose parts can combine to form very complex code structures.

Language

C is an imperative, procedural, structured language. This means:

  • Code is a sequence of statements that change program state
  • Statements may be organized in control structures like if, while, for
  • Code may be organized as functions, which may be called from elsewhere

Type system

C is statically but weakly typed. This means:

  • Types must be declared
  • Values can be loosely converted between types regardless of compatibility

Examples

The examples provided here can be compiled and run using a C compiler such as gcc or clang.

Hello World!

#include <stdio.h>
 
int main(void)
{
    printf("Hello, world\n");
}