Kayne Ruse
c830fa0537
If you have "config.next" set, the config system will load that as another config file. Higher config files have a higher precedence over subfiles when conflicting keys are encountered. * Added singleton.hpp, containing Singleton<T> * ConfigUtility now inherits from Singleton * Tweaked timer.*pp layouts
63 lines
1.6 KiB
C++
63 lines
1.6 KiB
C++
/* Copyright: (c) Kayne Ruse 2014
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*
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* This software is provided 'as-is', without any express or implied
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* warranty. In no event will the authors be held liable for any damages
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* arising from the use of this software.
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*
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* Permission is granted to anyone to use this software for any purpose,
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* including commercial applications, and to alter it and redistribute it
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* freely, subject to the following restrictions:
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*
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* 1. The origin of this software must not be misrepresented; you must not
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* claim that you wrote the original software. If you use this software
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* in a product, an acknowledgment in the product documentation would be
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* appreciated but is not required.
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*
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* 2. Altered source versions must be plainly marked as such, and must not be
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* misrepresented as being the original software.
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*
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* 3. This notice may not be removed or altered from any source
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* distribution.
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*/
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#ifndef SINGLETON_HPP_
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#define SINGLETON_HPP_
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#include <stdexcept>
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template<typename T>
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class Singleton {
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public:
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static T& GetSingleton() {
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if (!ptr) {
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throw(std::logic_error("This singleton has not been created"));
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}
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return *ptr;
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}
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static void Create() {
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if (ptr) {
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throw(std::logic_error("This singleton has already been created"));
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}
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ptr = new T();
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}
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static void Delete() {
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if (!ptr) {
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throw(std::logic_error("A non-existant singleton cannot be deleted"));
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}
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delete ptr;
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ptr = nullptr;
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}
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protected:
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Singleton() = default;
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Singleton(Singleton const&) = default;
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Singleton(Singleton&&) = default;
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~Singleton() = default;
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private:
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static T* ptr;
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};
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template<typename T>
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T* Singleton<T>::ptr = nullptr;
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#endif |