| 1 | // Copyright 2014 Renato Tegon Forti, Antony Polukhin. |
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| 2 | // Copyright Antony Polukhin, 2015-2024. |
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| 3 | // |
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| 4 | // Distributed under the Boost Software License, Version 1.0. |
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| 5 | // (See accompanying file LICENSE_1_0.txt |
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| 6 | // or copy at http://www.boost.org/LICENSE_1_0.txt) |
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| 7 | |
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| 8 | // MinGW related workaround |
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| 9 | #define BOOST_DLL_FORCE_ALIAS_INSTANTIATION |
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| 10 | |
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| 11 | #include <boost/dll.hpp> |
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| 12 | #include <string> |
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| 13 | |
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| 14 | #ifdef BOOST_NO_CXX11_NOEXCEPT |
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| 15 | #define noexcept |
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| 16 | #endif |
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| 17 | |
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| 18 | #define API extern "C" BOOST_SYMBOL_EXPORT |
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| 19 | |
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| 20 | #ifndef BOOST_NO_CXX11_RVALUE_REFERENCES |
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| 21 | //[getting_started_exports_cpp11_function |
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| 22 | namespace some_namespace { |
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| 23 | API int i_am_a_cpp11_function(std::string&& param) noexcept; |
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| 24 | // ^-------------------- function name to use in dll::import_symbol<> |
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| 25 | } |
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| 26 | //] |
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| 27 | #endif |
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| 28 | |
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| 29 | |
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| 30 | //[getting_started_exports_cpp_variable |
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| 31 | namespace your_project_namespace { |
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| 32 | API std::string cpp_variable_name; |
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| 33 | } |
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| 34 | //] |
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| 35 | |
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| 36 | |
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| 37 | |
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| 38 | //[getting_started_exports_alias |
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| 39 | namespace some_namespace { |
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| 40 | std::string i_am_function_with_ugly_name(const std::string& param) noexcept; |
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| 41 | } |
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| 42 | |
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| 43 | // When you have no control over function sources or wish to specify another name. |
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| 44 | BOOST_DLL_ALIAS(some_namespace::i_am_function_with_ugly_name, pretty_name) |
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| 45 | //] |
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| 46 | |
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| 47 | //[getting_started_exports_c_function |
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| 48 | API int c_func_name(int); |
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| 49 | //] |
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| 50 | |
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| 51 | //[getting_started_exports_c_variable |
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| 52 | API int c_variable_name; |
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| 53 | //] |
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| 54 | |
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| 55 | int c_func_name(int i) { return ++i; } |
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| 56 | int c_variable_name = 1; |
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| 57 | std::string your_project_namespace::cpp_variable_name = "some value" ; |
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| 58 | |
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| 59 | namespace some_namespace { |
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| 60 | std::string i_am_function_with_ugly_name(const std::string& param) noexcept { |
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| 61 | return param + " Hello from lib!" ; |
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| 62 | } |
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| 63 | |
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| 64 | #ifndef BOOST_NO_CXX11_RVALUE_REFERENCES |
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| 65 | int i_am_a_cpp11_function(std::string&& param) noexcept { |
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| 66 | return static_cast<int>(param.size()); |
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| 67 | } |
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| 68 | #endif |
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| 69 | } |
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| 70 | |
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| 71 | |
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