Using fgets

[Alien]

Websites recommends to use fgets() since it has the ability to put a limit on how much it can read per line. But using it I have trouble when I am interested in reading a printing a line at a time until i reach the end of file.

#include <stdio.h>
 
int main()
{
   FILE *ptr;
   char array[90];
 
   fgets(array, 90, fp);
   printf("%s\n", arrayToCopyInto);
 
}
 
 

The code above merely prints the first line. I would like to make it print each lines to the screen until it reaches end of file. What kind of loop do I use to make this happen?

[mattmao]

Websites recommends to use fgets() since it has the ability to put a limit on how much it can read per line. But using it I have trouble when I am interested in reading a printing a line at a time until i reach the end of file.

#include <stdio.h>
 
int main()
{
   FILE *ptr;
   char array[90];
 
   fgets(array, 90, fp);
   printf("%s\n", arrayToCopyInto);
 
}
 
 

The code above merely prints the first line. I would like to make it print each lines to the screen until it reaches end of file. What kind of loop do I use to make this happen?

Hi

you can iterate through all lines of the file using a while loop till the end:

while(fgets(array, 90, ptr)!=NULL)
{
    //do whatever you want to this line.
}