--- Libc/Libc-583/stdlib/atexit.3
+++ Libc/Libc-262/stdlib/atexit.3
@@ -34,71 +34,36 @@
 .\" SUCH DAMAGE.
 .\"
 .\"     @(#)atexit.3	8.1 (Berkeley) 6/4/93
-.\" $FreeBSD: src/lib/libc/stdlib/atexit.3,v 1.10 2002/12/18 13:33:03 ru Exp $
+.\" $FreeBSD: src/lib/libc/stdlib/atexit.3,v 1.7 2001/09/07 14:46:35 asmodai Exp $
 .\"
-.Dd May 20, 2008
+.Dd June 4, 1993
 .Dt ATEXIT 3
 .Os
 .Sh NAME
 .Nm atexit
 .Nd register a function to be called on exit
+.Sh LIBRARY
+.Lb libc
 .Sh SYNOPSIS
 .In stdlib.h
 .Ft int
-.Fn atexit "void (*func)(void)"
-#ifdef UNIFDEF_BLOCKS
-.Ft int
-.Fn atexit_b "void (^block)(void)"
-#endif
+.Fn atexit "void (*function)(void)"
 .Sh DESCRIPTION
 The
 .Fn atexit
 function
-registers the function
-.Fa func
+registers the given
+.Ar function
 to be called at program exit, whether via
 .Xr exit 3
 or via return from the program's
-.Fn main .
+.Em main .
 Functions so registered are called in reverse order;
 no arguments are passed.
-#ifdef UNIFDEF_BLOCKS
-.Pp
-The
-.Fn atexit_b
-function is like
-.Fn atexit
-except the callback is a block pointer instead of a function pointer.
-.Bd -ragged -offset indent
-Note: The
-.Fn Block_copy
-function (defined in
-.In Blocks.h )
-is used by
-.Fn atexit_b
-to make a copy of the block, especially for the case when a stack-based
-block might go out of scope when the subroutine returns.
-.Ed
-#endif
-.Pp
-These callbacks must not call
-.Fn exit ;
-if it should be necessary to terminate the process while in such a
-function, the
-.Xr _exit 2
-function should be used.
-(Alternatively, the callbacks may cause abnormal
-process termination, for example by calling
-.Xr abort 3 . )
-.Pp
-At least 32 callbacks can always be registered;
-more are allowed as long as sufficient memory can be allocated.
-.\" XXX {ATEXIT_MAX} is not implemented yet
+At least 32 functions can always be registered,
+and more are allowed as long as sufficient memory can be allocated.
 .Sh RETURN VALUES
-#ifdef UNIFDEF_BLOCKS
-.ds ATEXIT_B atexit_b
-#endif
-.Rv -std atexit \*[ATEXIT_B]
+.Rv -std atexit
 .Sh ERRORS
 .Bl -tag -width Er
 .It Bq Er ENOMEM