// bslalg_typetraithaspointersemantics.h                              -*-C++-*-
#ifndef INCLUDED_BSLALG_TYPETRAITHASPOINTERSEMANTICS
#define INCLUDED_BSLALG_TYPETRAITHASPOINTERSEMANTICS

#include <bsls_ident.h>
BSLS_IDENT("$Id: $")

//@PURPOSE: Provide a trait to mark classes as having pointer semantics.
//
//@DEPRECATED: Use `bslmf_haspointersemantics` instead.
//
//@CLASSES:
//  bslalg::TypeTraitHasPointerSemantics: has pointer semantics
//
//@SEE_ALSO:
//
//@DESCRIPTION: This component provides a single traits class,
// `bslalg::TypeTraitHasPointerSemantics`, which allows the trait
// `bslmf::HasPointerSemantics` to be declared using the (deprecated)
// `BSLALG_DECLARE_NESTED_TRAITS` macro.  See the `bslmf_haspointersemantics`
// component for details of this trait.
//
///Usage
///-----
// No Usage example is provided since this component is deprecated.

#include <bslscm_version.h>

#include <bslmf_haspointersemantics.h>
#include <bslmf_nestedtraitdeclaration.h>

namespace BloombergLP {

namespace bslalg {

                 //====================================
                 // struct TypeTraitHasPointerSemantics
                 //====================================

/// A type with this trait is said to have "pointer semantics".  That is the
/// type behaves as if it were a fundamental pointer type.  The type must
/// define(at a minimum) `operator*` and `operator->`.  Note that simply
/// providing the above operators does not imply that a type has pointer
/// semantics.  This trait is intended for "wrapper" types that behave as
/// pointers.  Some examples of such types include `std::auto_ptr`, and
/// `bslma::ManagedPtr`.  This trait is generally used by objects that
/// invoke the wrapped type.
struct TypeTraitHasPointerSemantics {

    /// This class template ties the `bslalg::TypeTraitHasPointerSemantics`
    /// trait tag to the `bslmf::HasPointerSemantics` trait metafunction.
    template <class TYPE>
    struct NestedTraitDeclaration :
        bslmf::NestedTraitDeclaration<TYPE, bslmf::HasPointerSemantics>
    {
    };

    template <class TYPE>
    struct Metafunction : bslmf::HasPointerSemantics<TYPE>::type { };
};

}  // close package namespace

#ifndef BDE_OPENSOURCE_PUBLICATION  // BACKWARD_COMPATIBILITY
// ============================================================================
//                           BACKWARD COMPATIBILITY
// ============================================================================

/// This alias is defined for backward compatibility.
typedef bslalg::TypeTraitHasPointerSemantics
                                           bslalg_TypeTraitHasPointerSemantics;
#endif  // BDE_OPENSOURCE_PUBLICATION -- BACKWARD_COMPATIBILITY

}  // close enterprise namespace

#endif

// ----------------------------------------------------------------------------
// Copyright 2013 Bloomberg Finance L.P.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// ----------------------------- END-OF-FILE ----------------------------------
