#include <stdio.h>
FILE *fp;
int main()
{
char N;
char first[8];
char last [9];
char middle[11];
printf("INPUT :");
fp = fopen("NAMES.DAT", "N");
while ((N = getc(fp)) != EOF)
{
scanf("%s , %s\\", &first, &last);
printf("%s, %s\\", first,last);
}
fclose(fp);
printf("OUTPUT:");
printf("%s, %s", last, middle);
return 0;
}
> char N;
This should be
int N;
otherwise your comparison with EOF will always fail (or might do)
> fp = fopen("NAMES.DAT", "N");
"N" is not a valid open mode, try "r"
> scanf("%s , %s\\", &first, &last);
first and last are already arrays, so
scanf("%s , %s\\", first, last);
is all you need
> while ((N = getc(fp)) != EOF)
So you burn a character, then read two strings.
This doesn't sound right to me....
> printf("%s, %s", last, middle);
You never read middle, so all it will print is garbage
How am I doing?
If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
If at first you don't succeed, try writing your phone number on the exam paper.
You are super, super moderator. Thank You very much.
Can I still use this
while ((N = getc(fp)) != EOF)
to read in the middle character.
I am reading names off a file called names.dat and putting them in order.
James Bagwell result would be Bagwell, J.
This is what I am trying to do with 10 names. Can I use this for the Bagwell, J. Just the J character.
Thank You
Code:while ( fscanf( fp, "%s %s %s", first, middle, last) != EOF ) { printf( "%s %s %c\n", last, first, middle[0] ); }
If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
If at first you don't succeed, try writing your phone number on the exam paper.
