commit 6b8b56f8596d3dde544a72d037e9feddd9f70938
author Damien George <damien.p.george@gmail.com> Tue Jul 04 02:15:11 2017 +1000
committer Damien George <damien.p.george@gmail.com> Tue Jul 04 02:15:11 2017 +1000
tree 2f38350492210f01e6347e3e9332f8f37e4be3b9
parent 9ed5e80eea71c8392b7c178d2e2b69e2428850d8

py/modmath: Check for zero division in log with 2 args.

py/modmath.c

diff --git a/py/modmath.c b/py/modmath.c
index 1071323..d5d135f 100644
--- a/py/modmath.c
+++ b/py/modmath.c
@@ -168,6 +168,8 @@
         mp_float_t base = mp_obj_get_float(args[1]);
         if (base <= (mp_float_t)0.0) {
             math_error();
+        } else if (base == (mp_float_t)1.0) {
+            mp_raise_msg(&mp_type_ZeroDivisionError, "division by zero");
         }
         return mp_obj_new_float(l / MICROPY_FLOAT_C_FUN(log)(base));
     }