rewind() - I/O Function
How is rewind() used in C++?
Explanation
rewind() is an I/O function that rewinds the file position indicator to the start of the specified stream. This function clears the EOF and the error flags associated with the stream.
void rewind ( FILE * stream );
Result :
The values read are: 22 and 33.
In the above example the rewind() is used to read the information printed into a file by moving the pointer to start of the stream.
Syntax:
void rewind ( FILE * stream );
Example :
| #include <stdio.h> int main() { FILE * re= fopen ("vowels.txt","w+"); int a,b; a=22; b=33; fprintf( re, "%d %d", a, b); rewind( re ); fscanf( re, "%d %d", &a, &b ); printf( "The values read are: %d and %d\n", a, b ); fclose(re); } |
Result :
The values read are: 22 and 33.
In the above example the rewind() is used to read the information printed into a file by moving the pointer to start of the stream.
