if i have a file with input as

[niru1972]

if i have a file
with input as

one
two
three

how can i do str=fgets(buf, 30, file) what should i declare str as?

 

[zBuilder]

You could do this:

char *str;
char buf[33];
FILE *file;
// open the file here so file points to a valid handle...

str=fgets(buf, 30, file);

And then check str for NULL to see if fgets failed or not.



Kim_Christensen@telus.net

http://www3.bc.sympatico.ca/Kim_Christensen/index.html

 

[rbobbitt]

Also, when you call fgets, it makes for better maintenance to use sizeof instead. And there's a chance that the user entered a line that was too long for your buffer, you will probably want to check for this too:

char buf[33];
FILE *file;

/* Open the file */

if (NULL==fgets(buf, sizeof buf, file)) {
/* fgets() failed, handle error */
} else {
char *tmp=strchr(buf,'\n');
if (NULL!=tmp) {
/* success, get rid of the newline */
*tmp='\0';
} else {
/* line was truncated, handle accordingly */
}
}



Russ
bobbitts@hotmail.com

http://home.earthlink.net/~bobbitts