bump version to 12.2.2-pve1

[ceph.git] / ceph / src / boost / libs / type_traits / doc / is_scalar.qbk

[/ 
  Copyright 2007 John Maddock.
  Distributed under the Boost Software License, Version 1.0.
  (See accompanying file LICENSE_1_0.txt or copy at
  http://www.boost.org/LICENSE_1_0.txt).
]

[section:is_scalar is_scalar]
   template <class T>
   struct is_scalar : public __tof {};
  
__inherit If T is a (possibly cv-qualified) scalar type then inherits from 
__true_type, otherwise inherits from __false_type.  Scalar types include
integral, floating point, enumeration, pointer, and pointer-to-member types.

__std_ref 3.9p10.

__header ` #include <boost/type_traits/is_scalar.hpp>` or ` #include <boost/type_traits.hpp>`

[all_compilers]

__examples

[:`is_scalar<int*>` inherits from `__true_type`.]

[:`is_scalar<int>::type` is the type `__true_type`.]

[:`is_scalar<double>::value` is an integral constant 
expression that evaluates to /true/.]

[:`is_scalar<int (*)(long)>::value` is an integral constant 
expression that evaluates to /true/.]

[:`is_scalar<int (MyClass::*)(long)>::value` is an integral constant 
expression that evaluates to /true/.]

[:`is_scalar<int (MyClass::*)>::value` is an integral constant 
expression that evaluates to /true/.]

[:`is_scalar<T>::value_type` is the type `bool`.]

[endsect]