SeqAn3  3.0.1
The Modern C++ library for sequence analysis.
type_inspection.hpp
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1 // -----------------------------------------------------------------------------------------------------
2 // Copyright (c) 2006-2020, Knut Reinert & Freie Universität Berlin
3 // Copyright (c) 2016-2020, Knut Reinert & MPI für molekulare Genetik
4 // This file may be used, modified and/or redistributed under the terms of the 3-clause BSD-License
5 // shipped with this file and also available at: https://github.com/seqan/seqan3/blob/master/LICENSE.md
6 // -----------------------------------------------------------------------------------------------------
7 
13 #pragma once
14 
15 #if defined(__GNUC__) || defined(__clang__)
16 #include <cxxabi.h>
17 #endif // defined(__GNUC__) || defined(__clang__)
18 
19 #include <functional>
20 #include <memory>
21 #include <string>
22 #include <typeinfo>
23 
24 #include <seqan3/core/platform.hpp>
25 
26 namespace seqan3::detail
27 {
28 
43 template <typename type>
44 inline std::string const type_name_as_string = [] ()
45 {
46  std::string demangled_name{};
47 #if defined(__GNUC__) || defined(__clang__) // clang and gcc only return a mangled name.
48  using safe_ptr_t = std::unique_ptr<char, std::function<void(char *)>>;
49 
50  int status{};
51  safe_ptr_t demangled_name_ptr{abi::__cxa_demangle(typeid(type).name(), 0, 0, &status),
52  [] (char * name_ptr) { free(name_ptr); }};
53  demangled_name = std::string{std::addressof(*demangled_name_ptr)};
54 #else // e.g. MSVC
55  demangled_name = typeid(type).name();
56 #endif // defined(__GNUC__) || defined(__clang__)
57 
59  demangled_name += " const";
60  if constexpr (std::is_lvalue_reference_v<type>)
61  demangled_name += " &";
62  if constexpr (std::is_rvalue_reference_v<type>)
63  demangled_name += " &&";
64 
65  return demangled_name;
66 }();
67 
68 } // namespace seqan3::detail
std::string
functional
std::function
std::addressof
T addressof(T... args)
memory
std::experimental::filesystem::status
T status(T... args)
std::remove_reference_t
std::is_const_v
T is_const_v
platform.hpp
Provides platform and dependency checks.
std
SeqAn specific customisations in the standard namespace.
std::free
T free(T... args)
typeinfo
std::unique_ptr
string