#include <stdio.h>
#include <string.h>
#include <malloc.h>


int main()
{
    const int BUFLENGTH=1024; // size of buffer
    char * buffer = malloc(BUFLENGTH); // make the buffer
    FILE * file;
    file = fopen("data.txt", "r"); // open file to read
    if (file==NULL) // could we find it?
    {
        printf("File open failed\n");
        return(1);
    }
    int totalChars=0; // initialisation
    int lines=0;
    int lineLength;
    do
    {
        fgets(buffer, BUFLENGTH, file); // read up to new line
        printf("%s",buffer); // check for debugging
        lineLength=strlen(buffer)-1; // fgets includes newline at end, so -1
        lines++;
        totalChars+=lineLength;
    }
    while (lineLength); // stop at blank line
    fclose(file);
    lines--; // ignore blank line
    printf("%d characters in %d lines => average is %f chars per line\n",totalChars,lines, (double)totalChars/lines);
    return 0;
}