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40 lines
1.5 KiB
40 lines
1.5 KiB
#pragma once
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namespace ft {
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// is_integral:
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template < class T, T val > struct integral_constant {
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typedef integral_constant< T, val > type;
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typedef T value_type;
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static const T value = val;
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operator T() const;
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};
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typedef integral_constant< bool, true > true_type;
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typedef integral_constant< bool, false > false_type;
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template < class T > struct is_integral : public false_type {};
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template < class T > struct is_integral< const T > : public false_type {};
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template <> struct is_integral< bool > : public true_type {};
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template <> struct is_integral< double > : public true_type {};
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template <> struct is_integral< char > : public true_type {};
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template <> struct is_integral< short > : public true_type {};
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template <> struct is_integral< int > : public true_type {};
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template <> struct is_integral< long > : public true_type {};
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template <> struct is_integral< long long > : public true_type {};
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template <> struct is_integral< unsigned char > : public true_type {};
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template <> struct is_integral< unsigned short > : public true_type {};
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template <> struct is_integral< unsigned int > : public true_type {};
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template <> struct is_integral< unsigned long > : public true_type {};
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template <> struct is_integral< unsigned long long > : public true_type {};
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// enable_if:
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template < bool B, class T = void > struct enable_if {};
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template < class T > struct enable_if< true, T > {
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typedef T type;
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};
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} // namespace ft
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