Segfault

[culler]

While investigating #112 I discovered that the following produces a segfault. Presumably setitem is corrupting something.

sage: from cypari2 import Pari
sage: pari = Pari()
sage: M = pari.matrix(10, 10, range(100))
sage: M[5] = 1000
sage: M

A segfault occurs during the printing.

[videlec]

Thanks for the report. I do not get a SEGFAULT on sage 9.7 but a "BusError" catched by cysignals. There is definitely something broken with M afterwards

sage: M[5]
1000
sage: M[5,0]
50
sage: M[5,1]
51

[culler]

The Gen __setitem__ method needs to raise an exception if passed an integer index for a matrix. That is how I fixed this in cypari.