How to create an input for the search function?

Question

I am trying to test my search function by creating a separate function that takes an input [some integer] and then checks whether that integer fits within the given array [numbers 10-19].

I made the array within a main function

int main(void) 

 {

   int values[ 10 ]; /* n is an array of 10 integers */
   int g;

   /* initialize elements of array n to 0 */         
   for (g = 0; g < 10; g++ ) {
      values[ g ] = g + 10; /* set element at location i to i + 10 */
      printf("%i", values[g]);
   }
 printf("\n");

}

I then have the Bool linear search function after:

bool search(value, int values[],int m) {
    // TODO: implement a searching algorithm
    for (int i = 0; i < m; i++)
    {
        if ( value == values[i])
        return true;
    }
    return false; }

However, I have struggled to find a way to actually find a way to give an input for value.

I wanted to do something like:

int main(int argc, string argv[])   {

     string num = argv[1];
     int value = atoi(num);

However, this returns unused parameter and unused variable errors. I can't put the Bool function within main either. What can I do?

Answer 1

Your "small" program is a little complex, you can try the one I coded, based on your code to see if it serves you. The program accepts the entry of the number you want to search for the command line. The program can be improved a bit.

#include <stdio.h>
#include <cs50.h>
#include <stdlib.h>
#include <stdbool.h>

bool search(int value, int values[]);

int main(int argc, string argv[]) 
{
     if(argc != 2)
     {
         printf("usage: ./search <number>");
         return 1;
     }

     int value = atoi(argv[1]);
     //int value = atoi(num);


     int values[ 10 ] = {0}; /* n is an array of 10 integers */
     int g = 0;

   /* initialize elements of array n to 0 */         
       for (g = 0; g < 10; g++ ) 
       {
          values[ g ] = g + 10; /* set element at location i to i + 10 */
          printf("%i ", values[g]);
       }
     printf("\n");
     bool k = search(value, values);
     if(k)
     {
         printf("found\n");
     }
     else
     {
         printf("no found\n");  
     }
}   


bool search(int value, int values[]) 
{
    // TODO: implement a searching algorithm
    for (int i = 0; i < 10; i++)
    {
        if ( value == values[i])
        return true;
    }
    return false; 
}