Write a function named iCount that counts the number of integers in a text file that only contains decimal integers. The function takes a single argument, a constant string that gives the name of the file. It returns an integer. If the specified file cannot be opened for reading, the function must return - 1. Ignore the main. c file. Write your solution in the iCount. c file.

Below is the given solution

Explanation:

#include

int iCount (char * fileName) {

FILE * file;

int num, count = 0;

file = fopen (fileName, "r");

if (! file) {

return - 1;

}

while (fscanf (file, "%d", &num) = = 1)

count++;

fclose (file);

return count;

}

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

char filename[100];

printf ("Enter file name: ");

scanf ("%s", filename);

printf ("Number of integers in file is %d/n", iCount (filename));

return 0;

}