[Gretl-devel] strange bug with loop and submatrixes

[Stefano Balietti]

The operation of selection of submatrixes causes a seg-fault if
performed within a loop.

--

function getData ( matrix results, scalar request[0:8:0], bool verbose[0])

	matrix treat = {}

	coeff = cols(results)

	coeff

	# init values
	if request = 0
		treat = results[2,]

	# coeff
    elif request = 1
        treat = results[3,]

	# stderr
    elif request = 2
		treat = results[4,]

    # vcv
	elif request = 3
		treat = results[5:4+coeff,]		
    endif

	return matrix treat

end function

nulldata 10

matrix a = zeros(20,5)

cc = cols(a)

matrix aa = a[5:4+cc,]	

aa

aa = getData( a,3)

aa

# SEGFAULT
loop for i=0..3
	aa = getData( a, i)

	aa
end loop

--

Cheers