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-'\"
-'\" Copyright (c) 1993 The Regents of the University of California.
-'\" Copyright (c) 1994-1996 Sun Microsystems, Inc.
-'\"
-'\" See the file "license.terms" for information on usage and redistribution
-'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
-.TH tailcall n 8.6 Tcl "Tcl Built-In Commands"
-.so man.macros
-.BS
-'\" Note:  do not modify the .SH NAME line immediately below!
-.SH NAME
-tailcall \- Replace the current procedure with another command
-.SH SYNOPSIS
-\fBtailcall \fIcommand\fR ?\fIarg ...\fR?
-.BE
-.SH DESCRIPTION
-.PP
-The \fBtailcall\fR command replaces the currently executing procedure, lambda
-application, or method with another command. The \fIcommand\fR, which will
-have \fIarg ...\fR passed as arguments if they are supplied, will be looked up
-in the current namespace context, not in the caller's. Apart from that
-difference in resolution, it is equivalent to:
-.PP
-.CS
-return [uplevel 1 [list \fIcommand\fR ?\fIarg ...\fR?]]
-.CE
-.PP
-This command may not be invoked from within an \fBuplevel\fR into a procedure
-or inside a \fBcatch\fR inside a procedure or lambda.
-'\" TODO: sort out the mess with the [try] command!
-.SH EXAMPLE
-.PP
-Compute the factorial of a number.
-.PP
-.CS
-proc factorial {n {accum 1}} {
-    if {$n < 2} {
-        return $accum
-    }
-    \fBtailcall\fR factorial [expr {$n - 1}] [expr {$accum * $n}]
-}
-.CE
-.PP
-Print the elements of a list with alternating lines having different
-indentations.
-.PP
-.CS
-proc printList {theList} {
-    if {[llength $theList]} {
-        puts "> [lindex $theList 0]"
-        \fBtailcall\fR printList2 [lrange $theList 1 end]
-    }
-}
-proc printList2 {theList} {
-    if {[llength $theList]} {
-        puts "< [lindex $theList 0]"
-        \fBtailcall\fR printList [lrange $theList 1 end]
-    }
-}
-.CE
-.SH "SEE ALSO"
-apply(n), proc(n), uplevel(n)
-.SH KEYWORDS
-call, recursion, tail recursion
-'\" Local Variables:
-'\" mode: nroff
-'\" fill-column: 78
-'\" End: