This *might* fix the last gcc-6 error.

cdunn2001 · cdunn2001 · commit 02bc3d77de93 · 2016-02-07T11:28:50.000-06:00
See open-source-parsers#411 (comment) I was unable to produce a warning in Clang, so I am not certain. But based on a [SO answer](http://stackoverflow.com/questions/25480059/gcc-conversion-warning-when-assigning-to-a-bitfield), I think I've fixed the following: ``` /tmp/jsoncpp/src/lib_json/json_value.cpp: In copy constructor 'Json::Value::CZString::CZString(const Json::Value::CZString&)': /tmp/jsoncpp/src/lib_json/json_value.cpp:235:18: error: conversion to 'unsigned char:2' from 'unsigned int' may alter its value [-Werror=conversion] storage_.policy_ = (other.cstr_ ~~~~~~~~~~~~ ? (static_cast<DuplicationPolicy>(other.storage_.policy_) == noDuplication ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ? noDuplication : duplicate) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ : static_cast<DuplicationPolicy>(other.storage_.policy_)); ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ```
diff --git a/src/lib_json/json_value.cpp b/src/lib_json/json_value.cpp
@@ -231,7 +231,7 @@ Value::CZString::CZString(const CZString& other)
     : cstr_(other.storage_.policy_ != noDuplication && other.cstr_ != 0
                 ? duplicateStringValue(other.cstr_, other.storage_.length_)
                 : other.cstr_) {
-  storage_.policy_ = (other.cstr_
+  storage_.policy_ = static_cast<unsigned>(other.cstr_
                  ? (static_cast<DuplicationPolicy>(other.storage_.policy_) == noDuplication
                      ? noDuplication : duplicate)
                  : static_cast<DuplicationPolicy>(other.storage_.policy_));
