For Problem 3 see section "4.2 Using feof() incorrectly" in
http://www.drpaulcarter.com/cs/common-c-errors.php
On Jun 13, 8:36 pm, divya jain <sweetdivya....@gmail.com> wrote:
> sorry i pasted wrong questn unser 2..
>
> the real question is
> which file will get closed through fclose()
> #include<stdio.h>
> int main()
> {
> FILE *fp,*fs,*ft;
> fp=fopen("a.c","r");
> fs=fopen("b.c","r");
> ft=fopen("c.c","r");
> fclose(fp,fs,ft);
> return 0;
>
> }
>
> 3. yes it is feof..srry typed it wrong... nd fgets(str,80,fp) is perfectly
> fine.. now the ans to this questn is that last line of the file will be
> printed twice...( which i m unable to get why)...plzz explain...
>
> @ souravsain plzz ignore this mail..srry for the inconvenience..
>
> On 13 June 2010 17:37, jalaj jaiswal <jalaj.jaiswa...@gmail.com> wrote:
>
>
>
> > in question 1... ch gets the value of EOF... so first kicit 44-a
> > gokulpeth\0 nagpur will get printed and then the value of EOF..
>
> > question number 2 .. seems to me as nrml ...i think myfile.c only gets
> > closed
>
> > in question number 3..it shld be fgets(str,79,fp)
>
> > On Sun, Jun 13, 2010 at 2:49 PM, divya <sweetdivya....@gmail.com> wrote:
>
> >> 1. wat ll be the o/p. plz explain y?
> >> // abc.c contains "kicit 44-a gokulpeth\0 nagpur"
> >> #include<stdio.h>
> >> #include<stdlib.h>
> >> int main()
> >> {
> >> unsigned char ch;
> >> FILE *fp;
> >> fp=fopen("abc.c","r");
> >> if(fp==NULL)
> >> {
> >> printf("unable to open the file \n");
> >> exit(1);
> >> }
> >> while((ch=getc(fp))!=EOF)
> >> printf("%c",ch);
> >> fclose(fp);
> >> printf("\n",ch);
> >> return 0;
> >> }
>
> >> 2.which file will get closed through fclose() in the following
> >> program and why?
> >> #include<stdio.h>
> >> int main()
> >> {FILE *fp;
> >> char ch;
> >> int i=1;
> >> fp=fopen(myfile.c","r");
> >> while((ch=getc(fp)!=EOF))
> >> {
> >> if(ch=='\n')
> >> i++;
> >> }
>
> >> fclose(fp);
> >> return 0;
> >> }
>
> >> 3.point out the error if any in following
>
> >> #include<stdio.h>
> >> int main()
> >> {
> >> FILE *fp;
> >> char str[80];
> >> fp=fopen("trial","r");
> >> while(!eof(fp))
> >> {
> >> fgets(str,80,fp);
> >> puts(str);
> >> }
> >> fclose(fp);
> >> return 0;
> >> }
>
> >> --
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>
> > --
> > With Regards,
> > Jalaj Jaiswal
> > +919026283397
> > B.TECH IT
> > IIIT ALLAHABAD
>
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