How to find EOF through fscanf

Question

I am reading matrix through file with the help of fscanf    How can i find EOF  Even if i try to find EOF after every string caught in arr   then also i am not able to find it   with the help of count i am reading the input file   -12 23 3  1 2 4  int main         char arr 10  len      int count 0       FILE  input  fopen  input txt    r         while count  7                      fscanf input   s  arr               storing the value of arr in some array                     len strlen arr              count                if arr len 1   EOF             printf   ni caught it n     here we have to exit        return 0      Instead of count i want to exit through the loop with the EOF   how can it be solved

User · Accepted Answer

fscanf -  On success  the function returns the number of items successfully read  This count can match the expected number of readings or be less -even zero- in the case of a matching failure  In the case of an input failure before any data could be successfully read  EOF is returned    So  instead of doing nothing with the return value like you are right now  you can check to see if it is    EOF   You should check for EOF when you call fscanf  not check the array slot for EOF

User · Answer

If you have integers in your file fscanf returns 1 until integer occurs  For example   FILE  in   fopen    task in    r    int length   0  int counter  int sequence   for   int i   0  i  lt  10  i           counter   fscanf in    d    amp sequence       if   counter    1             length    1            To find out the end of the file with symbols you can use EOF  For example   char symbol  FILE  in   fopen    task in    r     for     fscanf in    c    amp symbol     EOF          printf   c   symbol

User · Answer

while  fscanf input   s  arr     EOF  amp  amp  count  7      len strlen arr      count

[c] How to find EOF through fscanf?

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