According to the answer to this question http://www.velocityreviews.com/forums/t713549-check-for-null-before-calling-free.html it is save since it is part of the c language spec that free(NULL) should do nothing. So also the debugging replacements Dima is worried about should give no problem.
-- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org