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Language in C Interview Questions and Answers

Ques. How do I write code to get the current drive as well as set the current drive?

Ans. The function getdisk( ) returns the drive number of current drive. The drive number 0 indicates 'A' as the current drive, 1 as 'B' and so on. The Setdisk( ) function sets the current drive. This function takes one argument which is an integer indicating the drive to be set. Following program demonstrates use of both the functions.

#include <dir.h>

main( )
{
int dno, maxdr ;

dno = getdisk( ) ;
printf ( "\nThe current drive is: %c\n", 65 + dno
) ;

maxdr = setdisk ( 3 ) ;
dno = getdisk( ) ;
printf ( "\nNow the current drive is: %c\n", 65 +
dno ) ;
}
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