C – ISO/IEC 9899

A classic!

Here is the traditional “Hello, World!” program in C, written according to the ISO/IEC 9899 standard:

#include <stdio.h>

int main() {
    printf("Hello, World!\n");
    return 0;
}

This program includes the stdio.h header file, which provides functions for input/output operations, such as printf. The main function is the entry point of the program, and it uses the printf function to print the message “Hello, World!” followed by a newline character. The return 0; statement indicates that the program has completed successfully.

To compile this program, you can use a C compiler such as GCC:

$ gcc hello.c -o hello
$ ./hello
Hello, World!

This will generate an executable file called hello, which you can run to see the output.

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