Complete the program using a function The program should rea

Complete the program using a function.
The program should read all the values from the input file,
find the lowest value, and print the lowest value found.
*/

#include<iostream>
#include<fstream>
#include<string>
using namespace std;

/* TODO: Write the declaration (prototype) for the function

   - Name: GetLeast
   Parameter(s): an ifstream called infile (pass by reference - uses the &)
   Returns: an int, the lowest value found in the file

HINT: The ifstream should be opened in main, before calling this function
*/

//------------------------------------------------------------------------------

int main()
{
   int smallestValue = INT_MAX;       // Initialize smallest to maximum range
   ifstream dataFile;                                   // File input stream
   const string filename = \"data.txt\";                   // Input file name

cout << \"Opening file...\";

dataFile.open(filename.c_str()); // Open file

   if (dataFile)                                       // File opened OK?
   {
       cout << \"file opened.\" << endl
           << \"Begin searching for lowest value...\";

       /*   TODO:   Call function GetLeast, passing the dataFile ifstream variable
       and assign the return value to the smallestValue variable.
       */

cout << \"done.\ \" << endl; // Print result

       cout << \"The lowest value found was \"
           << smallestValue << endl;
   }
   else                                               // Problem opening file
   {
       cout << \"could not find or open file: \" << filename
           << endl;
   }

dataFile.close();

cout << \"\ End Program.\ \"
<< endl;

return 0;
}

//------------------------------------------------------------------------------

/* TODO: Define GetLeast(<params>)

Refer to the function prototype above for parameter and
   return type info.

   PSEUDOCODE:
   Declare two int variables (you decide on appropriate variable names):
   * 1 variable to hold each value as it is read from file
       * 1 variable to hold the lowest value read so far (initialize to INT_MAX)

       Read the first value from the file into the appropriate local variable
       Repeat while not at end of file
       - Test to see if the new value is smaller than the lowest read so far
           If yes, save the new value to the lowest so far variable
           Read the next value from the file
       End the repeat

Return the smallest value that was read

//------------------------------------------------------------------------------

/* Sample program output:

Opening file...file opened.
Begin searching for lowest value...done.

The lowest value found was -9122

End Program.

Press any key to continue . . .

Please follow the code and comments for description :

CODE :

#include <iostream> // required header files
#include <fstream>
#include <string>
#include <climits>
#include <cstdint>

using namespace std;

int getLeast(ifstream & in); // function declaration

int main() // driver method
{
   int smallestValue = INT_MAX; // Initialize smallest to maximum range
   ifstream dataFile; // File input stream
   const string filename = \"data.txt\"; // Input file name
   cout << \"Opening file...\";
   dataFile.open(filename.c_str()); // Open file
   if(dataFile) // File opened OK?
   {
       cout << \"file opened.\" << endl
       << \"Begin searching for lowest value...\";

       smallestValue = getLeast(dataFile); // call the function and get the data
       cout << \"done.\ \" << endl; // Print result
       cout << \"The lowest value found was \"
       << smallestValue << endl;
   }
   else // Problem opening file
   {
       cout << \"could not find or open file: \" << filename
       << endl;
   }
   dataFile.close(); /// close the file
   cout << \"\ End Program.\ \"
   << endl;
   return 0;
}

int getLeast(ifstream & in) // function initialisation
{
   int value ; // locla variables
   int lowest ;
   in >> lowest ; // set lowest to the first value in the file.
   while ( in >> value )
   {
       if(value < lowest)   {   // Test for lowest value
           lowest = value;
       }

       in >> value;       // Read next value
   }
   return lowest ;
}

OUTPUT :

Opening file...file opened.
Begin searching for lowest value...done.

The lowest value found was 1

End Program.

data.txt :

15
10
5
6
1
20
10
25
4
7

Hope this is helpful.