IsInteger.hpp
1 // Distributed under the MIT License.
2 // See LICENSE.txt for details.
3 
4 #pragma once
5 
6 #include <type_traits>
7 
8 namespace tt {
9 // @{
10 /*!
11  * \ingroup TypeTraitsGroup
12  * \brief Check if `I` is an integer type (non-bool, non-character), unlike
13  * std::is_integral
14  *
15  * \details
16  * Inherits from `std::true_type` if `I` is a `short`, `unsigned short`,
17  * `int`, `unsigned int`, `long`, `unsigned long`, `long long`, or
18  * `unsigned long long`, otherwise inherits from `std::false_type`.
19  *
20  * \usage
21  * For any type `I`,
22  * \code
23  * using result = tt::is_integer<I>;
24  * \endcode
25  * \metareturns
26  * cpp17::bool_constant
27  *
28  * \example
29  * \snippet Test_IsInteger.cpp is_integer_example
30  * \see std::is_integral std::is_arithmetic std::is_floating_point
31  */
32 template <typename I>
33 struct is_integer : std::false_type {};
34 
35 /// \cond HIDDEN_SYMBOLS
36 template <>
37 struct is_integer<short> : std::true_type {};
38 
39 template <>
40 struct is_integer<unsigned short> : std::true_type {};
41 
42 template <>
43 struct is_integer<int> : std::true_type {};
44 
45 template <>
46 struct is_integer<unsigned int> : std::true_type {};
47 
48 template <>
49 struct is_integer<long> : std::true_type {};
50 
51 template <>
52 struct is_integer<unsigned long> : std::true_type {};
53 
54 template <>
55 struct is_integer<long long> : std::true_type {};
56 
57 template <>
58 struct is_integer<unsigned long long> : std::true_type {};
59 /// \endcond
60 
61 /// \see is_integer
62 template <typename T>
63 constexpr bool is_integer_v = is_integer<T>::value;
64 // @}
65 } // namespace tt
tt::is_integer_v
constexpr bool is_integer_v
Definition: IsInteger.hpp:63
tt
A collection of useful type traits.
Definition: TensorExpression.hpp:113
tt::is_integer
Check if I is an integer type (non-bool, non-character), unlike std::is_integral. ...
Definition: IsInteger.hpp:33
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