Thread: Cant Figure Out File I/O Error!

Objective of this program is to read binary data from a file and print it.

Code:

#include <stdio.h>


void readFile(void);


int main(){
    readFile();
    return 0;
}


void readFile(void){
    FILE *fp;
    char ch;
    if((fp = fopen("newfile","rb"))==NULL){
        printf("Error reading.\n");
        return;
    }
    while(!feof(fp)){
        if(fread(&ch, sizeof ch, 1, fp)!=1){
            printf("Error.\n");
            return;
        }
        putchar(ch);
    }
    fclose(fp);
}

But When I Run This Code First It Print "Error." Then Rest Of The File.Say In My File I Have "I AM HUMAN", It Prints "Error. HUMAN"!!
I Cant Figure Out Whats Wrong In The readFile() Function.It seems right to me.

First of all i have used binary mood cause if i used text mood functions like fgets() or fscanf(), i have to use array to catch string from file but i want to make my program dynamic so that it doesn,t depend on file size as array does.I have also assume that i didn,t know file size.if i used array i have to knew that.Another reason for that is its better using binarry mood than text mood as conversion happens when using text mode function.Yes, In description i have used only text as example but its not constant that i will only use text i want to use any type of data.

Yes, I have written file using fwrite();

I am using windows.

Thanks

I can't reproduce that "Error." is printed before the content of the file. If I run your program it is printed after the content. Reason: FAQ > Why it's bad to use feof() to control a loop - Cprogramming.com

Bye, Andreas

Thanks.
This Is What I Need.