* Sebastiaan <[EMAIL PROTECTED]> spake thus:
> High,
>
>
> On Sun, 4 Nov 2001, J.A.Serralheiro wrote:
>
> > hi. Im trying to read a complete line from a text file.
> > I use the fscanf( file, "[^\n]",buffer); butit doesnt work. I reads the
> > entire file until overflow of the buffer.
> >
> > Can some one tell me how?
> >
> > I read scanf manual, but it wasnt of much help, for me at leastr.
> >
> >From an old proggie I wrote once:
> while (fgets(buff, sizeof(buff)-1, filestream) != NULL)
> {
> /* do something with the 'buff' variable */
> }
/* in the simple case of reading a line from a file, this will work: */
int main(void)
{
char s[80];
FILE *fp;
if (!(fp = fopen("filename", "r"))) {
puts("error opening file");
return -1;
}
fgets(s, sizeof s, fp);
puts(s);
return 0;
}
Beware though, if you want to put your readline stuff in a function
different from the one that declared the array, you have to pass the
size of the array, e.g. thusly:
void f(char *s, int lim);
#define LEN 80
int main(void)
{
char s[LEN];
f(s, LEN);
puts(s);
return 0;
}
void f(char *s, int lim)
{
FILE *fp;
if (!(fp = fopen("filename", "r"))) {
puts("error opening file");
return -1;
}
fgets(s, lim, fp);
}
Hope that helps.
Regards,
Stig
--
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Registered Linux User 107343
