// Boost.Convert library test and usage example
// Copyright (c) 2009-2014 Vladimir Batov.
// Use, modification and distribution are subject to the Boost Software License,
// Version 1.0. See http://www.boost.org/LICENSE_1_0.txt.

#include "./test.hpp"

using std::string;

void
test::sstream_manipulators()
{
    try
    {
        boost::lexical_cast<int>("FF");
        BOOST_TEST(!"We should not be here");
    }
    catch (...)
    {
    }

    boost::cstringstream_converter ccnv; // std::stringstream-based char converter
    boost::wstringstream_converter wcnv; // std::stringstream-based wchar_t converter

    int const hex_v01 = boost::convert<int>("FF", ccnv(std::hex)).value_or(0);
    int const hex_v02 = boost::convert<int>(L"F", wcnv(std::hex)).value_or(0);
    int const hex_v03 = boost::convert<int>("FF", ccnv(std::dec)).value_or(-5);
    int const hex_v04 = boost::convert<int>(L"F", wcnv(std::dec)).value_or(-6);

    BOOST_TEST(hex_v01 == 255); // "FF"
    BOOST_TEST(hex_v02 ==  15); // L"F"
    BOOST_TEST(hex_v03 ==  -5); // Failed conversion
    BOOST_TEST(hex_v04 ==  -6); // Failed conversion

    ccnv(std::noshowbase)(std::nouppercase)(std::oct);

    BOOST_TEST(boost::convert<string>(255, ccnv).value() == "377");
    BOOST_TEST(boost::convert<string>( 15, ccnv).value() ==  "17");

    ccnv(std::showbase);

    BOOST_TEST(boost::convert<string>(255, ccnv).value() == "0377");
    BOOST_TEST(boost::convert<string>( 15, ccnv).value() ==  "017");

    ccnv(std::uppercase)(std::hex);

    BOOST_TEST(boost::convert<string>(255, ccnv).value() == "0XFF");
    BOOST_TEST(boost::convert<string>( 15, ccnv).value() ==  "0XF");

    ccnv(std::noshowbase)(std::nouppercase)(std::oct);

    BOOST_TEST(boost::convert<string>(255, ccnv).value() == "377");
    BOOST_TEST(boost::convert<string>( 15, ccnv).value() ==  "17");

    ccnv(std::showbase)(arg::uppercase = true)(arg::base = cnv::base::hex);

    BOOST_TEST(boost::convert<string>(255, ccnv).value() == "0XFF");
    BOOST_TEST(boost::convert<string>( 15, ccnv).value() ==  "0XF");
}