Fix enum-to-unicode conversion code in C++ mode where direct assignments from...

Fix enum-to-unicode conversion code in C++ mode where direct assignments from C int to enum are not allowed.

Cython/Utility/TypeConversion.c

@@ -698,21 +698,21 @@ static CYTHON_INLINE PyObject* {{TO_PY_FUNCTION}}({{TYPE}} value, Py_ssize_t wid
         switch (format_char) {
         case 'o':
             digit_pos = abs((int)(remaining % (8*8)));
-            remaining = remaining / (8*8);
+            remaining = ({{TYPE}}) (remaining / (8*8));
             dpos -= 2;
             *(uint16_t*)dpos = ((uint16_t*)DIGIT_PAIRS_8)[digit_pos]; /* copy 2 digits at a time */
             last_one_off = (digit_pos < 8);
             break;
         case 'd':
             digit_pos = abs((int)(remaining % (10*10)));
-            remaining = remaining / (10*10);
+            remaining = ({{TYPE}}) (remaining / (10*10));
             dpos -= 2;
             *(uint16_t*)dpos = ((uint16_t*)DIGIT_PAIRS_10)[digit_pos]; /* copy 2 digits at a time */
             last_one_off = (digit_pos < 10);
             break;
         case 'x':
             *(--dpos) = hex_digits[abs((int)(remaining % 16))];
-            remaining = remaining / 16;
+            remaining = ({{TYPE}}) (remaining / 16);
             break;
         default:
             assert(0);