Ha! I now have a trivial python program the works interactively! momdad.py:

“””
“””

import os

print “os.listdir(os.getcwd())”
print os.listdir(os.getcwd())

for fname in os.listdir(os.getcwd()):
print fname
text=open(fname).read()
print “text.count( hi mom )”
print text.count(‘hi mom’)

A philosophic reason to sets pointers to NULL after free’ing them.

A philosophic reason to sets pointers to NULL after free’ing them.

On reflection, I think I got this one right, and I kinda like it! I have experienced other people’s double-free errors, surprisingly, but the value of crashing-on-access-via-null is persuasive to me. Making double-free happen silently and without error is a small cost for positively crashing on a rogue access through a freed pointer.