24 lines
520 B
C++
24 lines
520 B
C++
#ifndef SINGLETON_H
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#define SINGLETON_H
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#pragma execution_character_set("utf-8")
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template<typename T>
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class Singleton
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{
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public:
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static T* getInstance() noexcept(std::is_nothrow_constructible<T>::value)
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{
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static T instance{token()};
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return &instance;
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}
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virtual ~Singleton() =default;
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Singleton(const Singleton&)=delete;
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Singleton& operator =(const Singleton&)=delete;
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protected:
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struct token {}; // helper class
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Singleton() noexcept=default;
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};
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#endif // SINGLETON_H
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