C Programming:

Modify your Fibonacci computation program to accept a command line argument specifying how many elements to compute. Now, instead of using an array stored on the stack to store the Fibonacci elements, dynamically allocate the necessary memory for storing the solution on the heap. Additionally, your program should print usage information to the screen if the user runs your program without specifying how many Fibonacci elements to compute.

mymath.h:

#ifndef _mymath_h_ #define _mymath_h_

void compute_fibs (unsigned long* fibs, unsigned int* N);

#endif /*__mymath_h_ */

mymath.c:

#include "mymath.h" #include

void compute_fibs(unsigned long* fibs, unsigned int* N) { unsigned int i; unsigned long a,b,c; a = 0; b = 1; fibs[0] = 0; for(i = 1; i < *N; i++) { if(a > ULONG_MAX - b){ *N = i+1; fibs[i] = b; } else { c = a; a = b; b = b + c; fibs[i] = a; } } return; }

main.c:

#include #include "mymath.h"

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

unsigned int i; unsigned int elements = 1000; unsigned long fibs[elements]; compute_fibs(fibs, &elements); for (i=0; i