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Fixes #6083

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Merge from trunk

[SVN r75411]
This commit is contained in:
Antony Polukhin
2011-11-08 18:12:23 +00:00
parent 3a62368d0e
commit 1eda87448e
3 changed files with 60 additions and 1 deletions
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2
include/boost/lexical_cast.hpp
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@ -1147,7 +1147,7 @@ namespace boost
bool const result = !(stream << input).fail();
start = stringbuffer.pbase();
finish = stringbuffer.pptr();
return result;
return result && (start != finish);
}
template <class T>

1
test/Jamfile.v2
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@ -28,6 +28,7 @@ test-suite conversion
[ run lexical_cast_wchars_test.cpp ../../test/build//boost_unit_test_framework/<link>static ]
[ run lexical_cast_float_types_test.cpp ../../test/build//boost_unit_test_framework/<link>static ]
[ run lexical_cast_inf_nan_test.cpp ../../test/build//boost_unit_test_framework/<link>static ]
[ run lexical_cast_empty_input_test.cpp ../../test/build//boost_unit_test_framework/<link>static ]
;

58
test/lexical_cast_empty_input_test.cpp Executable file
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@ -0,0 +1,58 @@
// Unit test for boost::lexical_cast.
//
// See http://www.boost.org for most recent version, including documentation.
//
// Copyright Antony Polukhin, 2011.
//
// 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 <boost/config.hpp>
#if defined(__INTEL_COMPILER)
#pragma warning(disable: 193 383 488 981 1418 1419)
#elif defined(BOOST_MSVC)
#pragma warning(disable: 4097 4100 4121 4127 4146 4244 4245 4511 4512 4701 4800)
#endif
#include <boost/lexical_cast.hpp>
#include <boost/test/unit_test.hpp>
#include <boost/range/iterator_range.hpp>
using namespace boost;
void test_empty_iterator_range()
{
boost::iterator_range<const char*> v;
BOOST_CHECK_THROW(lexical_cast<int>(v), bad_lexical_cast);
BOOST_CHECK_THROW(lexical_cast<float>(v), bad_lexical_cast);
BOOST_CHECK_THROW(lexical_cast<double>(v), bad_lexical_cast);
BOOST_CHECK_THROW(lexical_cast<long double>(v), bad_lexical_cast);
BOOST_CHECK_THROW(lexical_cast<unsigned int>(v), bad_lexical_cast);
BOOST_CHECK_THROW(lexical_cast<std::string>(v), bad_lexical_cast);
BOOST_CHECK_THROW(lexical_cast<unsigned short>(v), bad_lexical_cast);
BOOST_CHECK_THROW(lexical_cast<char>(v), bad_lexical_cast);
}
void test_empty_string()
{
BOOST_CHECK_THROW(lexical_cast<int>(std::string()), bad_lexical_cast);
BOOST_CHECK_THROW(lexical_cast<float>(std::string()), bad_lexical_cast);
BOOST_CHECK_THROW(lexical_cast<double>(std::string()), bad_lexical_cast);
BOOST_CHECK_THROW(lexical_cast<long double>(std::string()), bad_lexical_cast);
BOOST_CHECK_THROW(lexical_cast<unsigned int>(std::string()), bad_lexical_cast);
BOOST_CHECK_EQUAL(lexical_cast<std::string>(std::string()), std::string());
BOOST_CHECK_THROW(lexical_cast<unsigned short>(std::string()), bad_lexical_cast);
BOOST_CHECK_THROW(lexical_cast<char>(std::string()), bad_lexical_cast);
}
unit_test::test_suite *init_unit_test_suite(int, char *[])
{
unit_test_framework::test_suite *suite =
BOOST_TEST_SUITE("lexical_cast. Empty input unit test");
suite->add(BOOST_TEST_CASE(&test_empty_iterator_range));
suite->add(BOOST_TEST_CASE(&test_empty_string));
return suite;
}