GETDTABLEHI(3C)						       GETDTABLEHI(3C)

NAME    [Toc]    [Back]

     getdtablehi - get largest open file descriptor index

SYNOPSIS    [Toc]    [Back]

     #include <unistd.h>

     int getdtablehi(void);

DESCRIPTION    [Toc]    [Back]

     getdtablehi returns the index of the largest open descriptor for the
     calling process plus one.	The 'plus one' makes getdtablehi an ideal
     replacement for getdtablesize(2) when the program wishes simply to	loop
     through and act on	all open file descriptors, rather than up to the
     system maximum.

SEE ALSO    [Toc]    [Back]

     close(2), getdtablesize(2), intro(2), open(2), select(2), setrlimit(2)
     dup(3C).


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