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

<code c>
    void rewind(FILE *stream);
</code>

equal like fseek(stream, 0L, SEEK_SET); clearerr(stream);
Resets the read pointer to the beginning of the File and clear the error
indicator

===== C Sourcecode Example =====
<code c>
/* 
 * rewind example code
 * http://code-reference.com/c/stdio.h/rewind 
 */

#include <stdio.h> /* including standard library */
//#include <windows.h> /* uncomment this for Windows */


int main (void) {
FILE *stream;
int c;
long seek_position;

seek_position = 21;

stream=fopen("test.txt", "r" );
    
    if (stream == 0) {
        perror("cannot open file");
        return 0;
    }

while( (c=getc(stream)) != EOF) {
    putc(c, stdout);
}

/* Set Position with rewind to the beginning of the file */
rewind(stream);

/* SET SEEK CUR to 20 char of the file */
fseek(stream, seek_position, SEEK_CUR );

    while( (c=getc(stream)) != EOF) {
        putc(c, stdout);
    }
return 0;
}
</code>


=== content of test.txt ===
<code c>
Test example file for code-reference.com rewind source code
</code>

==== output ====
    output: ./rewind 
    Test example file for code-reference.com rewind source code
    code-reference.com rewind source code

    
    
see also [[c:stdio.h:fseek|]]