uint.cpp

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/*=============================================================================
    Copyright (c) 2001-2007 Joel de Guzman
    Copyright (c) 2001-2007 Hartmut Kaiser

    Distributed under the Boost Software License, Version 1.0. (See accompanying
    file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
=============================================================================*/
#include <climits>
#include <boost/detail/lightweight_test.hpp>
#include <boost/spirit/include/qi_numeric.hpp>
#include <boost/spirit/include/qi_char.hpp>
#include <boost/spirit/include/qi_action.hpp>
#include <boost/spirit/include/support_argument.hpp>
#include <boost/spirit/include/phoenix_core.hpp>
#include <boost/spirit/include/phoenix_operator.hpp>

#include "test.hpp"

///////////////////////////////////////////////////////////////////////////////
//
//  *** BEWARE PLATFORM DEPENDENT!!! ***
//  *** The following assumes 32 bit integers and 64 bit long longs.
//  *** Modify these constant strings when appropriate.
//
///////////////////////////////////////////////////////////////////////////////

    char const* max_unsigned = "4294967295";
    char const* unsigned_overflow = "4294967296";
    char const* max_int = "2147483647";
    char const* int_overflow = "2147483648";
    char const* min_int = "-2147483648";
    char const* int_underflow = "-2147483649";
    char const* max_binary = "11111111111111111111111111111111";
    char const* binary_overflow = "100000000000000000000000000000000";
    char const* max_octal = "37777777777";
    char const* octal_overflow = "100000000000";
    char const* max_hex = "FFFFFFFF";
    char const* hex_overflow = "100000000";

int
main()
{
    using namespace spirit_test;

    ///////////////////////////////////////////////////////////////////////////
    //  unsigned tests
    ///////////////////////////////////////////////////////////////////////////
    {
        using boost::spirit::uint;
        unsigned u;

        BOOST_TEST(test("123456", uint));
        BOOST_TEST(test_attr("123456", uint, u));
        BOOST_TEST(u == 123456);

        BOOST_TEST(test(max_unsigned, uint));
        BOOST_TEST(test_attr(max_unsigned, uint, u));
        BOOST_TEST(u == UINT_MAX);

        BOOST_TEST(!test(unsigned_overflow, uint));
        BOOST_TEST(!test_attr(unsigned_overflow, uint, u));
    }

    ///////////////////////////////////////////////////////////////////////////
    //  binary tests
    ///////////////////////////////////////////////////////////////////////////
    {
        using boost::spirit::bin;
        unsigned u;

        BOOST_TEST(test("11111110", bin));
        BOOST_TEST(test_attr("11111110", bin, u));
        BOOST_TEST(u == 0xFE);

        BOOST_TEST(test(max_binary, bin));
        BOOST_TEST(test_attr(max_binary, bin, u));
        BOOST_TEST(u == UINT_MAX);

        BOOST_TEST(!test(binary_overflow, bin));
        BOOST_TEST(!test_attr(binary_overflow, bin, u));
    }

    ///////////////////////////////////////////////////////////////////////////
    //  octal tests
    ///////////////////////////////////////////////////////////////////////////
    {
        using boost::spirit::oct;
        unsigned u;

        BOOST_TEST(test("12545674515", oct));
        BOOST_TEST(test_attr("12545674515", oct, u));
        BOOST_TEST(u == 012545674515);

        BOOST_TEST(test(max_octal, oct));
        BOOST_TEST(test_attr(max_octal, oct, u));
        BOOST_TEST(u == UINT_MAX);

        BOOST_TEST(!test(octal_overflow, oct));
        BOOST_TEST(!test_attr(octal_overflow, oct, u));
    }

    ///////////////////////////////////////////////////////////////////////////
    //  hex tests
    ///////////////////////////////////////////////////////////////////////////
    {
        using boost::spirit::hex;
        unsigned u;

        BOOST_TEST(test("95BC8DF", hex));
        BOOST_TEST(test_attr("95BC8DF", hex, u));
        BOOST_TEST(u == 0x95BC8DF);

        BOOST_TEST(test("abcdef12", hex));
        BOOST_TEST(test_attr("abcdef12", hex, u));
        BOOST_TEST(u == 0xabcdef12);

        BOOST_TEST(test(max_hex, hex));
        BOOST_TEST(test_attr(max_hex, hex, u));
        BOOST_TEST(u == UINT_MAX);

        BOOST_TEST(!test(hex_overflow, hex));
        BOOST_TEST(!test_attr(hex_overflow, hex, u));
    }

    ///////////////////////////////////////////////////////////////////////////
    //  limited fieldwidth
    ///////////////////////////////////////////////////////////////////////////
    {
        unsigned u;
        using boost::spirit::qi::uint_spec;

        uint_spec<unsigned, 10, 1, 3> uint3;
        BOOST_TEST(test("123456", uint3, false));
        BOOST_TEST(test_attr("123456", uint3, u, false));
        BOOST_TEST(u == 123);

        uint_spec<unsigned, 10, 2, 4> uint4;
        BOOST_TEST(test("123456", uint4, false));
        BOOST_TEST(test_attr("123456", uint4, u, false));
        BOOST_TEST(u == 1234);

        BOOST_TEST(!test("1", uint4));
        BOOST_TEST(!test_attr("1", uint4, u));
    }

    ///////////////////////////////////////////////////////////////////////////
    //  uint_spec<unused_type> tests
    ///////////////////////////////////////////////////////////////////////////
    {
        using boost::spirit::qi::uint_spec;
        using boost::spirit::unused_type;
        uint_spec<unused_type> any_int;

        BOOST_TEST(test("123456", any_int));
        BOOST_TEST(test("1234567890123456789", any_int));
    }

    ///////////////////////////////////////////////////////////////////////////
    //  action tests
    ///////////////////////////////////////////////////////////////////////////
    {
        using namespace boost::phoenix;
        using boost::spirit::arg_names::_1;
        using boost::spirit::ascii::space;
        using boost::spirit::uint;
        int n;

        BOOST_TEST(test("123", uint[ref(n) = _1]));
        BOOST_TEST(n == 123);
        BOOST_TEST(test("   456", uint[ref(n) = _1], space));
        BOOST_TEST(n == 456);
    }

    return boost::report_errors();
}