# dlib C++ Library - typeid.h

    /*
        pybind11/detail/typeid.h: Compiler-independent access to type identifiers

        Copyright (c) 2016 Wenzel Jakob <wenzel.jakob@epfl.ch>

        All rights reserved. Use of this source code is governed by a
        BSD-style license that can be found in the LICENSE file.
    */

    #pragma once

    #include <cstdio>
    #include <cstdlib>

    #if defined(__GNUG__)
    #include <cxxabi.h>
    #endif

    NAMESPACE_BEGIN(PYBIND11_NAMESPACE)
    NAMESPACE_BEGIN(detail)
    /// Erase all occurrences of a substring
    inline void erase_all(std::string &string, const std::string &search) {
        for (size_t pos = 0;;) {
            pos = string.find(search, pos);
            if (pos == std::string::npos) break;
            string.erase(pos, search.length());
        }
    }

    PYBIND11_NOINLINE inline void clean_type_id(std::string &name) {
    #if defined(__GNUG__)
        int status = 0;
        std::unique_ptr<char, void (*)(void *)> res {
            abi::__cxa_demangle(name.c_str(), nullptr, nullptr, &status), std::free };
        if (status == 0)
            name = res.get();
    #else
        detail::erase_all(name, "class ");
        detail::erase_all(name, "struct ");
        detail::erase_all(name, "enum ");
    #endif
        detail::erase_all(name, "pybind11::");
    }
    NAMESPACE_END(detail)

    /// Return a string representation of a C++ type
    template <typename T> static std::string type_id() {
        std::string name(typeid(T).name());
        detail::clean_type_id(name);
        return name;
    }

    NAMESPACE_END(PYBIND11_NAMESPACE)