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# Example using pointers to member functions
if [ catch { load ./member_pointer[info sharedlibextension] member_pointer} err_msg ] {
puts stderr "Could not load shared object:\n$err_msg"
}
proc check {what expected actual} {
if {$expected != $actual } {
error "Failed: $what , Expected: $expected , Actual: $actual"
}
}
# Get the pointers
set area_pt [ areapt ]
set perim_pt [ perimeterpt ]
# Create some objects
set s [Square -args 10]
# Do some calculations
check "Square area " 100.0 [do_op $s $area_pt]
check "Square perim" 40.0 [do_op $s $perim_pt]
set memberPtr $areavar
set memberPtr $perimetervar
# Try the variables
check "Square area " 100.0 [do_op $s $areavar]
check "Square perim" 40.0 [do_op $s $perimetervar]
# Modify one of the variables
set areavar $perim_pt
check "Square perimeter" 40.0 [do_op $s $areavar]
# Try the constants
set memberPtr $AREAPT
set memberPtr $PERIMPT
set memberPtr $NULLPT
check "Square area " 100.0 [do_op $s $AREAPT]
check "Square perim" 40.0 [do_op $s $PERIMPT]
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