########################################################################
#                                                                      #
#               This software is part of the ast package               #
#          Copyright (c) 1982-2009 AT&T Intellectual Property          #
#                      and is licensed under the                       #
#                  Common Public License, Version 1.0                  #
#                    by AT&T Intellectual Property                     #
#                                                                      #
#                A copy of the License is available at                 #
#            http://www.opensource.org/licenses/cpl1.0.txt             #
#         (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9)         #
#                                                                      #
#              Information and Software Systems Research               #
#                            AT&T Research                             #
#                           Florham Park NJ                            #
#                                                                      #
#                  David Korn <dgk@research.att.com>                   #
#                                                                      #
########################################################################
function err_exit
{
	print -u2 -n "\t"
	print -u2 -r ${Command}[$1]: "${@:2}"
	(( Errors+=1 ))
}
alias err_exit='err_exit $LINENO'

Command=${0##*/}
integer Errors=0

typeset -T Pt_t=(
	float x=1
	float y=0
	len()
	{
		print -r $((sqrt(_.x*_.x + _.y*_.y)))
	}
)

typeset -T Rect_t=(
	Pt_t ll=(x=0 y=0)
	Pt_t ur=(x=1 y=1)
	area()
	{
		print -r $(( abs((_.ur.x-_.ll.x)*(_.ur.y-_.ll.y)) ))
	}
)

for ((i=0; i < 100; i++))
do
Rect_t r
[[ ${r.area} == 1 ]] || err_exit '${r.area} != 1'
Rect_t s=(
	Pt_t ur=(x=9 y=9)
	Pt_t ll=(x=7 y=7)
)
[[ ${s.ur.x} == 9 ]] || err_exit ' ${s.ur.x} != 9'
(( s.ur.x == 9  ))|| err_exit ' ((s.ur.x)) != 9'
[[ ${s.ll.y} == 7 ]] || err_exit '${s.ll.y} != 7'
(( s.area == 4 )) || err_exit  'area of s should be 4'
[[ ${s.area} == 4 ]] || err_exit '${s.area} != 4'
unset r s
done
Rect_t -A r
r[one]=(ur=(x=4 y=4))
(( r[one].area == 16 )) || err_exit 'area of r[one] should be 16'
[[ ${r[one].area} == 16 ]] || err_exit '${r[one].area} should be 16'
unset r
exit $Errors
