commit 4b8ec5256d3d27b6cd69afeda62d645df4719ea9
author Damien George <damien.p.george@gmail.com> Fri Feb 03 00:01:37 2017 +1100
committer Damien George <damien.p.george@gmail.com> Fri Feb 03 00:01:37 2017 +1100
tree 296165401eacd81b0d9fb18ec9fd20eed340d8ff
parent 05c70fdfba7e5c0f9104c927e29822a8da8c467f

py/objfloat: Raise ZeroDivisionError for 0 to negative power.

py/objfloat.c

diff --git a/py/objfloat.c b/py/objfloat.c
index 73d07fe..9292490 100644
--- a/py/objfloat.c
+++ b/py/objfloat.c
@@ -228,7 +228,12 @@
             }
             break;
         case MP_BINARY_OP_POWER:
-        case MP_BINARY_OP_INPLACE_POWER: lhs_val = MICROPY_FLOAT_C_FUN(pow)(lhs_val, rhs_val); break;
+        case MP_BINARY_OP_INPLACE_POWER:
+            if (lhs_val == 0 && rhs_val < 0) {
+                goto zero_division_error;
+            }
+            lhs_val = MICROPY_FLOAT_C_FUN(pow)(lhs_val, rhs_val);
+            break;
         case MP_BINARY_OP_DIVMOD: {
             if (rhs_val == 0) {
                 goto zero_division_error;