Richard Ivanowich wrote:
> > > As a newbie programmer i am now looking make a simple database program.
> > > This proggy reads file number one then file number two and matches the two
> > > records with the same username then outputs to a file. What i need to know
> > > is how to read the file into a structure. How do i do this???
> >
> > It depends entirely upon the format of the file.
>
> The file is just a plain test file like so
>
> ---
> joe 30
> larry 20
> moe 50
> ---
The simplest way is to use fgets + sscanf, e.g.
for (;;)
{
char buff[LINE_MAX];
char name[NAME_MAX];
int number;
if (!fgets(buff, sizeof(buff), fp))
break;
if (sscanf(buff, "%s %d", name, &number) != 2)
{
fprintf(stderr, "syntax error: %s", buff);
continue;
}
/* do something with `name' and `number' */
}
A custom scanner built using lex will be more efficient, but it's
unlikely to be worth the effort in this case.
--
Glynn Clements <[EMAIL PROTECTED]>
