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fgetpos() - I/O Function


Tutorials Cpp

Topic

How is "fgetpos()" used in C++?
How to get current file position?



Explanation

fgetpos() is an I/O function which is used to get the current value of the file position indicator in the object pointed by the position. The function return a zero value on success, a non-zero value if an error occurs.

Syntax:
    int fgetpos( FILE * stream, fpos_t *position );
Example:

   #include <stdio.h>
   int main ()
    {
      FILE * str= fopen ("fgetposeg.txt","r");
      int a;
      fpos_t pos;
      a = fgetc (str);
      printf ("First character in the file is %c\n",a);
      fgetpos (str,&pos);
      fclose (str);
      return 0;
    }

Result:
    First character in the file is j

In the above example the "fgetpos()" is used to find the first character from the text file. This gives the current file position.










Note
C++ is one of the most used programming languages in the world. Also known as "C with Classes". Hope you enjoy this tutorial. Do send your feedback or suggestions on this C++ tutorial. This is a copyright content.

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