| 1 | // Unit test for boost::lexical_cast. |
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| 2 | // |
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| 3 | // See http://www.boost.org for most recent version, including documentation. |
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| 4 | // |
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| 5 | // Copyright Antony Polukhin, 2012-2024. |
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| 6 | // |
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| 7 | // Distributed under the Boost |
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| 8 | // Software License, Version 1.0. (See accompanying file |
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| 9 | // LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt). |
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| 10 | |
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| 11 | #include <boost/lexical_cast.hpp> |
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| 12 | |
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| 13 | #include <boost/core/lightweight_test.hpp> |
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| 14 | |
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| 15 | #if defined(BOOST_NO_STRINGSTREAM) |
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| 16 | typedef std::strstream ss_t; |
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| 17 | #else |
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| 18 | typedef std::stringstream ss_t; |
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| 19 | #endif |
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| 20 | |
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| 21 | void test_void_pointers_conversions() |
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| 22 | { |
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| 23 | void *p_to_null = NULL; |
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| 24 | const void *cp_to_data = "Some data" ; |
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| 25 | char nonconst_data[5]; |
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| 26 | void *p_to_data = nonconst_data; |
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| 27 | ss_t ss; |
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| 28 | |
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| 29 | ss << p_to_null; |
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| 30 | BOOST_TEST_EQ(boost::lexical_cast<std::string>(p_to_null), ss.str()); |
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| 31 | ss.str(s: std::string()); |
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| 32 | |
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| 33 | ss << cp_to_data; |
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| 34 | BOOST_TEST_EQ(boost::lexical_cast<std::string>(cp_to_data), ss.str()); |
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| 35 | ss.str(s: std::string()); |
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| 36 | |
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| 37 | ss << p_to_data; |
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| 38 | BOOST_TEST_EQ(boost::lexical_cast<std::string>(p_to_data), ss.str()); |
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| 39 | ss.str(s: std::string()); |
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| 40 | } |
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| 41 | |
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| 42 | struct incomplete_type; |
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| 43 | |
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| 44 | void test_incomplete_type_pointers_conversions() |
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| 45 | { |
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| 46 | incomplete_type *p_to_null = NULL; |
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| 47 | const incomplete_type *cp_to_data = NULL; |
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| 48 | char nonconst_data[5]; |
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| 49 | incomplete_type *p_to_data = reinterpret_cast<incomplete_type*>(nonconst_data); |
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| 50 | ss_t ss; |
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| 51 | |
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| 52 | ss << p_to_null; |
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| 53 | BOOST_TEST_EQ(boost::lexical_cast<std::string>(p_to_null), ss.str()); |
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| 54 | ss.str(s: std::string()); |
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| 55 | |
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| 56 | ss << cp_to_data; |
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| 57 | BOOST_TEST_EQ(boost::lexical_cast<std::string>(cp_to_data), ss.str()); |
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| 58 | ss.str(s: std::string()); |
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| 59 | |
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| 60 | ss << p_to_data; |
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| 61 | BOOST_TEST_EQ(boost::lexical_cast<std::string>(p_to_data), ss.str()); |
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| 62 | ss.str(s: std::string()); |
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| 63 | } |
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| 64 | |
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| 65 | struct ble; |
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| 66 | typedef struct ble *meh; |
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| 67 | std::ostream& operator <<(std::ostream &o, meh) { |
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| 68 | o << "yay" ; |
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| 69 | return o; |
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| 70 | } |
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| 71 | |
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| 72 | void test_inomplete_type_with_overloaded_ostream_op() { |
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| 73 | meh heh = NULL; |
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| 74 | ss_t ss; |
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| 75 | ss << heh; |
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| 76 | BOOST_TEST_EQ(boost::lexical_cast<std::string>(heh), ss.str()); |
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| 77 | } |
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| 78 | |
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| 79 | int main() |
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| 80 | { |
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| 81 | test_void_pointers_conversions(); |
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| 82 | test_incomplete_type_pointers_conversions(); |
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| 83 | test_inomplete_type_with_overloaded_ostream_op(); |
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| 84 | |
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| 85 | return boost::report_errors(); |
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| 86 | } |
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| 87 | |
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