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1 | [/ |
2 | Copyright 2007 John Maddock. | |
3 | Distributed under the Boost Software License, Version 1.0. | |
4 | (See accompanying file LICENSE_1_0.txt or copy at | |
5 | http://www.boost.org/LICENSE_1_0.txt). | |
6 | ] | |
7 | ||
8 | [section:is_scalar is_scalar] | |
9 | template <class T> | |
10 | struct is_scalar : public __tof {}; | |
11 | ||
12 | __inherit If T is a (possibly cv-qualified) scalar type then inherits from | |
13 | __true_type, otherwise inherits from __false_type. Scalar types include | |
14 | integral, floating point, enumeration, pointer, and pointer-to-member types. | |
15 | ||
16 | __std_ref 3.9p10. | |
17 | ||
18 | __header ` #include <boost/type_traits/is_scalar.hpp>` or ` #include <boost/type_traits.hpp>` | |
19 | ||
20 | [all_compilers] | |
21 | ||
22 | __examples | |
23 | ||
24 | [:`is_scalar<int*>` inherits from `__true_type`.] | |
25 | ||
26 | [:`is_scalar<int>::type` is the type `__true_type`.] | |
27 | ||
28 | [:`is_scalar<double>::value` is an integral constant | |
29 | expression that evaluates to /true/.] | |
30 | ||
31 | [:`is_scalar<int (*)(long)>::value` is an integral constant | |
32 | expression that evaluates to /true/.] | |
33 | ||
34 | [:`is_scalar<int (MyClass::*)(long)>::value` is an integral constant | |
35 | expression that evaluates to /true/.] | |
36 | ||
37 | [:`is_scalar<int (MyClass::*)>::value` is an integral constant | |
38 | expression that evaluates to /true/.] | |
39 | ||
40 | [:`is_scalar<T>::value_type` is the type `bool`.] | |
41 | ||
42 | [endsect] | |
43 |