tree cfa06b72894bf740560b8fc47cd18f13d0e23b4b
parent 656b735af9c3b4efdad93307da92555bab36c562
author Jeremy Hylton <jeremy@alum.mit.edu> 1019592080 +0000
committer Jeremy Hylton <jeremy@alum.mit.edu> 1019592080 +0000
HG:extra convert_revision:svn%3A6015fed2-1504-0410-9fe1-9d1591cc4771/python/branches/legacy-trunk%4026609

Clarify return value of PyLong_AsLongLong().

The function is documented to return -1 on error.  If res was < 0, it
returned res.  It wasn't clear that the invariant was res < 0 iff res
== -1.