rewind() Function
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Description
The C library function, The rewind( ) function moves the file position indicator to the start of the specified stream. It also clears the end-of-file and error flags associated with stream.
Declaration
Following is the declaration for rewind() function.
void rewind(FILE *stream)
Parameters
stream - A pointer to a FILE object which identifies a stream.
Return Value
The rewind function does not return anything.
Example
#include <stdio.h>
int main( void )
{
FILE *stream;
int data1, data2;
data1 = 1;
data2 = -37;
fopen_s( &stream, "crt_rewind.out", "w+" );
if( stream != NULL )
{
fprintf( stream, "%d %d", data1, data2 );
printf( "The values written are: %d and %d\n", data1, data2 );
rewind( stream );
fscanf_s( stream, "%d %d", &data1, &data2 );
printf( "The values read are: %d and %d\n", data1, data2 );
fclose( stream );
}
}
Output
The values written are: 1 and -37 The values read are: 1 and -37
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