{{keywords>wiki library source code example reference}}
====== fsetpos ======

<code c>
    int fsetpos(FILE *stream, const fpos_t *pos); 
</code>
reset the position indicator to  using fsetpos()
stores the current file position indicator to the location indicated by the information in pos
Returns non-zero on error.
===== C Sourcecode Example =====
<code c>
#include <stdio.h> /* including standard library */
//#include <windows.h> /* uncomment this for Windows */


int main( void )
{
    FILE *stream;
    fpos_t file_pos;
    int c;
    int i;

    if((stream=fopen("test.txt","r"))==NULL) {
        printf("Cannot open file.\n");
        return 1;
    }
      
   fgetpos(stream, &file_pos); 
  
   while((c = fgetc(stream) ) != EOF) {
     if ( c == '#' ) { 
             fgetpos(stream, &file_pos); 
           }
        printf("%c", c);
     }
     
   printf("1st Position of # is the %d Byte\n", file_pos);

   printf("\nset to given position\nand print it again\n");
   fsetpos(stream, &file_pos);

   while((c = fgetc(stream) ) != EOF) {
        printf("%c", c);
     }

      fclose(stream);
}

</code>

==== output ====
    output:  ./fsetpos 
    test 1234,
     ... # ...
    this is a test for code-reference.com 
    1st Position of # is the 17 Byte
    
    set to given position
    and print it again
     ...
    this is a test for code-reference.com