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120 lines
3 KiB
C++
120 lines
3 KiB
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_IS_FUNCTION_H_
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#define CTL_IS_FUNCTION_H_
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#include "integral_constant.h"
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namespace ctl {
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// Primary template
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template<class>
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struct is_function : ctl::false_type
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{};
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// Specializations for various function types
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// Regular functions
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template<class Ret, class... Args>
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struct is_function<Ret(Args...)> : ctl::true_type
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{};
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// Functions with cv-qualifiers
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template<class Ret, class... Args>
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struct is_function<Ret(Args...) const> : ctl::true_type
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{};
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template<class Ret, class... Args>
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struct is_function<Ret(Args...) volatile> : ctl::true_type
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{};
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template<class Ret, class... Args>
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struct is_function<Ret(Args...) const volatile> : ctl::true_type
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{};
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// Functions with ref-qualifiers
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template<class Ret, class... Args>
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struct is_function<Ret(Args...)&> : ctl::true_type
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{};
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template<class Ret, class... Args>
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struct is_function<Ret(Args...) const&> : ctl::true_type
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{};
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template<class Ret, class... Args>
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struct is_function<Ret(Args...) volatile&> : ctl::true_type
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{};
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template<class Ret, class... Args>
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struct is_function<Ret(Args...) const volatile&> : ctl::true_type
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{};
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template<class Ret, class... Args>
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struct is_function<Ret(Args...) &&> : ctl::true_type
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{};
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template<class Ret, class... Args>
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struct is_function<Ret(Args...) const&&> : ctl::true_type
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{};
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template<class Ret, class... Args>
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struct is_function<Ret(Args...) volatile&&> : ctl::true_type
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{};
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template<class Ret, class... Args>
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struct is_function<Ret(Args...) const volatile&&> : ctl::true_type
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{};
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// Variadic functions
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template<class Ret, class... Args>
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struct is_function<Ret(Args..., ...)> : ctl::true_type
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{};
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// Variadic functions with cv-qualifiers
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template<class Ret, class... Args>
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struct is_function<Ret(Args..., ...) const> : ctl::true_type
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{};
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template<class Ret, class... Args>
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struct is_function<Ret(Args..., ...) volatile> : ctl::true_type
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{};
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template<class Ret, class... Args>
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struct is_function<Ret(Args..., ...) const volatile> : ctl::true_type
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{};
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// Variadic functions with ref-qualifiers
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template<class Ret, class... Args>
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struct is_function<Ret(Args..., ...)&> : ctl::true_type
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{};
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template<class Ret, class... Args>
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struct is_function<Ret(Args..., ...) const&> : ctl::true_type
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{};
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template<class Ret, class... Args>
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struct is_function<Ret(Args..., ...) volatile&> : ctl::true_type
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{};
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template<class Ret, class... Args>
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struct is_function<Ret(Args..., ...) const volatile&> : ctl::true_type
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{};
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template<class Ret, class... Args>
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struct is_function<Ret(Args..., ...) &&> : ctl::true_type
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{};
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template<class Ret, class... Args>
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struct is_function<Ret(Args..., ...) const&&> : ctl::true_type
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{};
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template<class Ret, class... Args>
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struct is_function<Ret(Args..., ...) volatile&&> : ctl::true_type
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{};
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template<class Ret, class... Args>
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struct is_function<Ret(Args..., ...) const volatile&&> : ctl::true_type
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{};
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} // namespace ctl
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#endif // CTL_IS_FUNCTION_H_
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