learning fread feof ferror

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

#define SIZE_OF_BUFFER 10

/*
while(!feof(stream))
{
    ...
}
*/

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

    FILE* fp = NULL;
    size_t size;
    char buffer[SIZE_OF_BUFFER];

    fp = fopen("example.txt", "rb");

    if(fp)
    {

        /*
        fread returns the number of objects read
        this may be less than the number requested
        feof and ferror must be used to determine status
        */

        size = fread(buffer,1,SIZE_OF_BUFFER,fp);

        if(size!=SIZE_OF_BUFFER) printf("info: size differs from SIZE_OF_BUFFER.\n");

        if(feof(fp)) printf("info: the EOF flag is set.\n");
        else printf("info: the EOF flag is not set.\n");

        if (ferror(fp))
        {
            printf("error: file read error.\n");
            clearerr(fp);
        }
        else printf("info: there is no read error.\n");

        fclose(fp);
    }
    else printf("error: can't open file.\n");


return 0;
}