diff options
Diffstat (limited to 'src/math/gfpmath/freestore.h')
| -rw-r--r-- | src/math/gfpmath/freestore.h | 170 |
1 files changed, 4 insertions, 166 deletions
diff --git a/src/math/gfpmath/freestore.h b/src/math/gfpmath/freestore.h index cafe69aae..f83d1e867 100644 --- a/src/math/gfpmath/freestore.h +++ b/src/math/gfpmath/freestore.h @@ -1,10 +1,7 @@ -/************************************************* - * mixin class to force that all instances * - * allocated on the free store are referenced * - * through smart pointers. * - * (C) 2007 Christoph Ludwig * - * [email protected] * - *************************************************/ +/************************************************** +* (C) 2007 Christoph Ludwig * +* [email protected] * +**************************************************/ #ifndef BOTAN_FREESTORE_H__ #define BOTAN_FREESTORE_H__ @@ -17,17 +14,6 @@ #error "Please choose a shared_ptr implementation" #endif -// Boost headers -#include <boost/preprocessor/arithmetic/inc.hpp> -#include <boost/preprocessor/repetition/enum_binary_params.hpp> -#include <boost/preprocessor/repetition/enum_params.hpp> -#include <boost/preprocessor/repetition/repeat.hpp> -#include <boost/preprocessor/stringize.hpp> - -#ifndef BOTAN_CREATE_PTR_MAX_ARITY -#define BOTAN_CREATE_PTR_MAX_ARITY 10 -#endif - namespace Botan { template<typename T> @@ -54,154 +40,6 @@ class BOTAN_DLL SharedPtrConverter SharedPtr ptr; }; -/* -* Create an object of type T on the free store by means of the -* default constructor and return an auto_ptr to this object. -*/ -template <class T> -std::auto_ptr<T> create_auto_ptr() - { - T* raw = new T(); - return std::auto_ptr<T>(raw); - } - -/* -* Create an object of type T on the free store by means of the -* default constructor and return a shared_ptr to this object. -*/ -template <class T> -std::tr1::shared_ptr<T> create_shared_ptr() - { - T* raw = new T(); - return std::tr1::shared_ptr<T>(raw); - } - -/* -* Provide overloads of create_auto_ptr and create_shared_ptr for up to -* BOTAN_CREATE_PTR_MAX_ARITY constructor parameters. -* -* The code below defines -* template<class T, typename A1> -* std::auto_ptr<T> create_auto_ptr(A1 p1); -* -* template<class T, typename A1, typename A2> -* std::auto_ptr<T> create_auto_ptr(A1 p1, A2 p2); -* -* and so on up to -* -* template<class T, typename A1, typename A2, ..., typename An> -* std::auto_ptr<T> create_auto_ptr(A1 p1, A2 p2, ..., An pn); -* -* where n = BOTAN_CREATE_PTR_MAX_ARITY. The code also defines similar -* function template overloads for create_shared_pt. -* -* The idea for the preprocessor code is taken from: -* Grenyer, Paul: "All Heap No Leak". Overload, Issue 60, ACCU, Sept. 2004. -* Available at <URL:http://www.accu.org/index.php/journals/306>. -*/ -// Doxygen cannot handle the preprocessor code -# ifndef DOXYGEN_IS_PARSING -# define BOTAN_CREATE_PTR(z, n, _) \ - template<class T, \ - BOOST_PP_ENUM_PARAMS(BOOST_PP_INC(n), typename A)> \ - std::auto_ptr<T> \ - create_auto_ptr(BOOST_PP_ENUM_BINARY_PARAMS(BOOST_PP_INC(n), A, p)) { \ - T* raw = new T(BOOST_PP_ENUM_PARAMS(BOOST_PP_INC(n), p)); \ - return std::auto_ptr<T>(raw); \ - } \ - \ - template<class T, \ - BOOST_PP_ENUM_PARAMS(BOOST_PP_INC(n), typename A)> \ - std::tr1::shared_ptr<T> \ - create_shared_ptr(BOOST_PP_ENUM_BINARY_PARAMS(BOOST_PP_INC(n), A, p)) { \ - T* raw = new T(BOOST_PP_ENUM_PARAMS(BOOST_PP_INC(n), p)); \ - return std::tr1::shared_ptr<T>(raw); \ - } \ - /**/ -BOOST_PP_REPEAT(BOTAN_CREATE_PTR_MAX_ARITY, BOTAN_CREATE_PTR, ~) -# if 0 -; // make emacs' and other editors' auto-indentation happy... -# endif -# undef BOTAN_CREATE_PTR -# else -//! Preprocessor generated factory functions that return auto_ptr<T> -template<typename T, typename P1, typename P2, typename P3, ... > -std::auto_ptr<T> create_auto_ptr(P1 p1, P2 p2, P3 p3, ...); - -//! Preprocessor generated factory functions that return shared_ptr<T> -template<typename T, typename P1, typename P2, typename P3, ... > -std::tr1::shared_ptr<T> create_shared_ptr(P1 p1, P2 p2, P3 p3, ...); - -# endif // DOXYGEN_IS_PARSING - - - -/* -* Freestore enforces that all objects (including objects of derived types) -* can no longer be allocated on the free store by means of the -* new (or new[]) operator, but only via one of the overloads -* of function template Botan::create_ptr. -*/ -class BOTAN_DLL Freestore - { - private: - static - inline - void* operator new(std::size_t size) throw (std::bad_alloc) - { - return ::operator new(size); - } - - static - inline - void* operator new[](std::size_t size) throw (std::bad_alloc) - { - return ::operator new[](size); - } - - template <class T> - friend - std::auto_ptr<T> create_auto_ptr(); - - template <class T> - friend - std::tr1::shared_ptr<T> create_shared_ptr(); - -# ifndef DOXYGEN_IS_PARSING -# define BOTAN_FREESTORE_FRIEND_CREATE_PTR(z, n, _) \ - template<class T, \ - BOOST_PP_ENUM_PARAMS(BOOST_PP_INC(n), typename A)> \ - friend \ - std::auto_ptr<T> \ - create_auto_ptr(BOOST_PP_ENUM_BINARY_PARAMS(BOOST_PP_INC(n), A, p)); \ - \ - template<class T, \ - BOOST_PP_ENUM_PARAMS(BOOST_PP_INC(n), typename A)> \ - friend \ - std::tr1::shared_ptr<T> \ - create_shared_ptr(BOOST_PP_ENUM_BINARY_PARAMS(BOOST_PP_INC(n), A, p)); \ - /**/ - BOOST_PP_REPEAT(BOTAN_CREATE_PTR_MAX_ARITY, BOTAN_FREESTORE_FRIEND_CREATE_PTR, ~) -# if 0 - ; // make emacs' auto-indentation happy... -# endif -# undef BOTAN_FREESTORE_FRIEND_CREATE_PTR -# else - template<typename T, typename P1, typename P2, typename P3, ... > - friend - std::auto_ptr<T> create_auto_ptr(P1 p1, P2 p2, P3 p3, ...); - - template<typename T, typename P1, typename P2, typename P3, ... > - friend - std::tr1::shared_ptr<T> create_shared_ptr(P1 p1, P2 p2, P3 p3, ...); -# endif // DOXYGEN_IS_PARSING - - - public: - // implicitly defined constructors and assignment operator are - // fine. - }; - } #endif |