Lab46 Wiki

Identification of chosen keyword.

All programs contain at least a main() function. The main()function typically is executed when the program starts. functions contain parameters or instructions to be used during the programs computation. Here is an example of a function parameter:

long sum( int array[], int number ) // Identifiers
 
{                                   //body of function
 
  int i;
 
  long result = 0;       
 
 
 
  for( i = 0;  i < number;  ++i )
 
     result += (long)array[i];
 
  return result;
 
}

Functions can also have declarations before the body where you can call datatypes.

List any sites, books, or sources utilized when researching information on this topic. (Remove any filler text).

• http://www2.its.strath.ac.uk/courses/c/section3_9.html
• http://www.cprogramming.com/tutorial/c/lesson4.html

Identification of chosen keyword.

Structs, not your mama's sneaker shoes.

#include <stdio.h>
#include <stdlib.h>
 
struct mystruct {                 //
    int test;                     // Declaration of initial struct.
};                                //
 
typedef struct mystruct * newstruct;                                    // newstruct function is a pointer to my struct.
 
newstruct getnewstruct() {
    newstruct temp = (newstruct)malloc(sizeof(newstruct*)) ;
    return temp;
}
 
int main()
{
    newstruct tester = getnewstruct() ;                  //
    tester -> test = 8;                                  // Mathematical manipulation and printing of structure.
    tester -> test++;                                    //
    printf ("The value is %i\n",tester -> test) ;        //
    free(tester) ;
    return 0;
}

Demonstration of the indicated keyword.

If you wish to aid your definition with a code sample, you can do so by using a wiki code block, an example follows:

Alternatively (or additionally), if you want to demonstrate something on the command-line, you can do so as follows:

andrew ~ $ gcc malloc.c -o malloc
andrew ~ $ ./malloc
First value: 10
Pi is: 3.140000