* lisp.h (TAG_SYMPTR): Don't do arithmetic on NULL.
commit206333ee300408e24bca860287efba11326a990d
authorPaul Eggert <eggert@cs.ucla.edu>
Thu, 8 Jan 2015 07:39:56 +0000 (7 23:39 -0800)
committerPaul Eggert <eggert@cs.ucla.edu>
Thu, 8 Jan 2015 07:40:20 +0000 (7 23:40 -0800)
tree36292bc82e381944e188e43841bebaecade39a99
parentce5c361c14c3fd5c06d48aa1c4bfa05c47c249f0
* lisp.h (TAG_SYMPTR): Don't do arithmetic on NULL.

This is a followup to the "Port Qnil==0 XUNTAG to clang" patch.
Although clang doesn't need it, some other compiler might, and
it's easy enough to be safe.
src/ChangeLog
src/lisp.h