home *** CD-ROM | disk | FTP | other *** search
- #ifndef __RW_VALIMP__
- #define __RW_VALIMP__
- #pragma option push -b -a4 -Vx- -Ve- -w-inl -w-aus -w-sig
-
- /***************************************************************************
- *
- * valimp - Declarations for the Standard Library valarray
- *
- * $Id: valimp,v 1.1 1996/09/25 00:47:35 philippe Exp $
- *
- ***************************************************************************
- *
- * (c) Copyright 1994, 1995 Rogue Wave Software, Inc.
- * ALL RIGHTS RESERVED *
- * The software and information contained herein are proprietary to, and
- * comprise valuable trade secrets of, Rogue Wave Software, Inc., which
- * intends to preserve as trade secrets such software and information.
- * This software is furnished pursuant to a written license agreement and
- * may be used, copied, transmitted, and stored only in accordance with
- * the terms of such license and with the inclusion of the above copyright
- * notice. This software and information or any other copies thereof may
- * not be provided or otherwise made available to any other person.
- *
- * Notwithstanding any other lease or license that may pertain to, or
- * accompany the delivery of, this computer software and information, the
- * rights of the Government regarding its use, reproduction and disclosure
- * are as set forth in Section 52.227-19 of the FARS Computer
- * Software-Restricted Rights clause.
- *
- * Use, duplication, or disclosure by the Government is subject to
- * restrictions as set forth in subparagraph (c)(1)(ii) of the Rights in
- * Technical Data and Computer Software clause at DFARS 252.227-7013.
- * Contractor/Manufacturer is Rogue Wave Software, Inc.,
- * P.O. Box 2328, Corvallis, Oregon 97339.
- *
- * This computer software and information is distributed with "restricted
- * rights." Use, duplication or disclosure is subject to restrictions as
- * set forth in NASA FAR SUP 18-52.227-79 (April 1985) "Commercial
- * Computer Software-Restricted Rights (April 1985)." If the Clause at
- * 18-52.227-74 "Rights in Data General" is specified in the contract,
- * then the "Alternate III" clause applies.
- *
- **************************************************************************/
-
- #include <stdcomp.h>
-
- #ifndef _RWSTD_NO_NEW_HEADER
- #include <cstddef>
- #include <cstring>
- #else
- #include <stddef.h>
- #include <string.h>
- #endif
-
- #include <rw/math.h>
-
- //#define _RWSTD_NO_IMP_NAMESPACE 1
-
- #ifndef _RWSTD_NO_NAMESPACE
- namespace std { }
- #ifndef _RWSTD_NO_IMP_NAMESPACE
- namespace rwstd {
- #define _RW_IMP_SPACE(name) ::rwstd::name
- using namespace std;
- #else
- namespace std {
- #define _RW_IMP_SPACE(name) ::std::name
- #endif
- #else
- #define _RW_IMP_SPACE(name) name
- #endif
-
-
-
- /****************************************************************
- * IMPLEMENTATION FUNCTIONALITIES *
- * *
- * - valarray memory model *
- * - valarray optimization on copy and return *
- * *
- ****************************************************************/
-
-
- // valarray_traits class
- // allow memory optimization
- // for builtin types and user types
-
- template <class T>
- class valarray_traits_optimize
- {
- public:
-
- static bool optimize_copy() { return false; }
- };
-
-
- #ifndef _RWSTD_NO_BOOL
- _RWSTD_TEMPLATE
- class valarray_traits_optimize<bool>
- {
- public:
-
- static bool optimize_copy() { return true; }
- };
- #endif
-
- _RWSTD_TEMPLATE
- class valarray_traits_optimize<short>
- {
- public:
-
- static bool optimize_copy() { return true; }
- };
-
- _RWSTD_TEMPLATE
- class valarray_traits_optimize<unsigned short>
- {
- public:
-
- static bool optimize_copy() { return true; }
- };
-
- _RWSTD_TEMPLATE
- class valarray_traits_optimize<int>
- {
- public:
-
- static bool optimize_copy() { return true; }
- };
-
- _RWSTD_TEMPLATE
- class valarray_traits_optimize<unsigned int>
- {
- public:
-
- static bool optimize_copy() { return true; }
- };
-
- _RWSTD_TEMPLATE
- class valarray_traits_optimize<long>
- {
- public:
-
- static bool optimize_copy() { return true; }
- };
-
- _RWSTD_TEMPLATE
- class valarray_traits_optimize<unsigned long>
- {
- public:
-
- static bool optimize_copy() { return true; }
- };
-
- _RWSTD_TEMPLATE
- class valarray_traits_optimize<float>
- {
- public:
-
- static bool optimize_copy() { return true; }
- };
-
- _RWSTD_TEMPLATE
- class valarray_traits_optimize<double>
- {
- public:
-
- static bool optimize_copy() { return true; }
- };
-
- _RWSTD_TEMPLATE
- class valarray_traits_optimize<long double>
- {
- public:
-
- static bool optimize_copy() { return true; }
- };
-
- _RWSTD_TEMPLATE
- class valarray_traits_optimize<char>
- {
- public:
-
- static bool optimize_copy() { return true; }
- };
-
- _RWSTD_TEMPLATE
- class valarray_traits_optimize<unsigned char>
- {
- public:
-
- static bool optimize_copy() { return true; }
- };
-
-
- // for optimization on return of
- // valarray<T> values
-
- template <class T>
- struct _RW_temporary {
-
- T* store_adr;
- size_t length;
- };
-
-
- // Class _RW_array<T>
- // C type array storage class
- // responsible for physical representation
- // of the valarray in memory and memory operations
-
- template <class T> class _RW_array {
-
- public:
-
- _RW_array( )
- : _RW_length(0)
- , _RW_storage(0)
- { ; }
-
- ~_RW_array( )
- { if ( _RW_storage ) delete []_RW_storage; }
-
- void _initial_size(size_t size)
- {
- _RW_length = size;
- _RW_storage = new T[_RW_length];
- }
-
- void _initialize_with_value(const T&, size_t);
- void _initialize_with_array(const T*, size_t);
- void _copy_memory_array(const _RW_array<T>&);
-
- size_t _get_length() const { return _RW_length; }
-
- T operator[] (size_t ind) const
- { return _RW_storage[ind]; }
-
- T& operator[] (size_t ind)
- { return _RW_storage[ind]; }
-
- void _replace(T* tmp_adr, size_t tmp_length )
- {
- _RW_storage = tmp_adr;
- _RW_length = tmp_length;
- }
-
- T* _RW_get_storage() const { return _RW_storage; }
-
- void _RW_invalidate()
- {
- _RW_length = 0;
- _RW_storage = 0;
- }
-
- void _RW_copy( T* pointer ) const
- {
- memcpy( (void*)pointer, (void*)_RW_storage, _RW_length*sizeof(T));
- }
-
- void _RW_resize_without_copy( size_t size)
- {
- if ( _RW_storage )
- {
- delete []_RW_storage;
- _RW_storage = 0;
- }
- _RW_length = size;
- if ( size > 0 ) _RW_storage = new T[_RW_length];
- }
-
- private:
-
- size_t _RW_length;
- T* _RW_storage;
-
- };
-
-
- #ifndef _RWSTD_NO_NAMESPACE
- }
- #endif
-
-
- #ifdef _RWSTD_NO_TEMPLATE_REPOSITORY
- #include <rw/valimp.cc>
- #endif
-
- #pragma option pop
- #endif /* __RW_VALIMP__ */
-
-