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55 lines
967 B
C++
55 lines
967 B
C++
// -*-mode:c++;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8-*-
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// vi: set et ft=cpp ts=4 sts=4 sw=4 fenc=utf-8 :vi
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#ifndef CTL_ADD_LVALUE_REFERENCE_H_
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#define CTL_ADD_LVALUE_REFERENCE_H_
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namespace ctl {
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template<typename T>
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struct add_lvalue_reference
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{
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typedef T& type;
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};
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template<typename T>
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struct add_lvalue_reference<T&>
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{
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typedef T& type;
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};
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template<typename T>
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struct add_lvalue_reference<T&&>
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{
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typedef T& type;
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};
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template<>
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struct add_lvalue_reference<void>
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{
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typedef void type;
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};
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template<>
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struct add_lvalue_reference<const void>
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{
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typedef const void type;
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};
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template<>
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struct add_lvalue_reference<volatile void>
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{
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typedef volatile void type;
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};
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template<>
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struct add_lvalue_reference<const volatile void>
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{
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typedef const volatile void type;
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};
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template<typename T>
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using add_lvalue_reference_t = typename add_lvalue_reference<T>::type;
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} // namespace ctl
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#endif // CTL_ADD_LVALUE_REFERENCE_H_
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