Get float.py working

src/runtime/builtin_modules/builtins.cpp

@@ -1465,7 +1465,8 @@ Box* divmod(Box* lhs, Box* rhs) {
 
 Box* powFunc(Box* x, Box* y, Box* z) {
     Box* rtn = PyNumber_Power(x, y, z);
-    checkAndThrowCAPIException();
+    if (!rtn)
+        throwCAPIException();
     return rtn;
 }
 

src/runtime/float.cpp

@@ -1110,9 +1110,11 @@ Box* floatCoerce(BoxedFloat* _self, Box* other) {
 
     Box* self = static_cast<Box*>(_self);
     int result = float_coerce(&self, &other);
-    if (result == 0)
+    if (result == 0) {
+        AUTO_DECREF(self);
+        AUTO_DECREF(other);
         return BoxedTuple::create({ self, other });
-    else if (result == 1)
+    } else if (result == 1)
         return incref(NotImplemented);
     else
         throwCAPIException();

src/runtime/long.cpp

@@ -1458,7 +1458,9 @@ Box* longPowLong(BoxedLong* lhs, Box* _rhs, Box* _mod) {
 
     if (mpz_sgn(rhs_long->n) == -1) {
         BoxedFloat* rhs_float = static_cast<BoxedFloat*>(longToFloat(rhs_long));
+        AUTO_DECREF(rhs_float);
         BoxedFloat* lhs_float = static_cast<BoxedFloat*>(longToFloat(lhs));
+        AUTO_DECREF(lhs_float);
         return boxFloat(pow_float_float(lhs_float->d, rhs_float->d));
     }
 
@@ -1633,6 +1635,8 @@ static PyObject* long_pow(PyObject* v, PyObject* w, PyObject* x) noexcept {
     try {
         PyLongObject* a, *b;
         CONVERT_BINOP(v, w, &a, &b);
+        AUTO_DECREF((Box*)a);
+        AUTO_DECREF((Box*)b);
         return longPow((BoxedLong*)a, (BoxedLong*)b, x);
     } catch (ExcInfo e) {
         setCAPIException(e);

test/tests/float.py

-# expected: reffail
 print 123542598.12938712938192831293812983
 f = 1.0
 print f