altos/lisp: Move stack recursion check after null check
authorKeith Packard <keithp@keithp.com>
Sat, 19 Nov 2016 07:37:44 +0000 (23:37 -0800)
committerKeith Packard <keithp@keithp.com>
Sat, 19 Nov 2016 07:37:44 +0000 (23:37 -0800)
commit86f1c4b04946956f40755286bd9554828d5c8728
treebc2a2e5001a0a29babe849c2e080e9a6a61cfdf8
parent8b1d8df85170e334f4f7691017629028fc88231a
altos/lisp: Move stack recursion check after null check

Don't crash when printing null stack this way.

Signed-off-by: Keith Packard <keithp@keithp.com>
src/lisp/ao_lisp_stack.c