/*
  Hello, World! program example in C
  CSE 374, Winter 2015
*/

/*
  Start with any necessary include statements
  to bring in definitions from libraries or 
  any user-defined functions.
*/

#include<stdio.h>

/*
  main is a reserved keyword.  The main function 
  is where execution starts.  The signature is 
  similar to other functions:

  returnType functionName ( paramList ) {
    functionBody
  }
  where paramList can be empty or dataType varName pairs
  and pairs are separated by commas.

  In main, you have argc, the number (or count) of arguments,
  and argv, the values of the arguments.  argv is a pointer 
  to an array of pointers to the argument values.
*/

int main(int argc, char** argv) {

  /*
    The body of the function is contained within a matched pair of { }
    C does not care whether the { is on the same line with the function 
    signature or not, and white space is up to the developer or any 
    imposed stylistic standards (like Java).  
  */

  /*
    a basic printf statement with one string as an argument 
    to the function printf.  \n is a newline character.  
  */

  printf("Hello, World\n");

  /*
    The following is a return statement.  return in main() is 
    similar to an exit command in a shell script.  The value will be returned 
    to the operating system when the program is done.  Usually a zero
    value means everything was fine, and other numbers can be used at the 
    developer's discretion to signal various problems during execution.
  */

  return 0;
}