diff options
Diffstat (limited to 'smartptr.h')
| -rw-r--r-- | smartptr.h | 36 |
1 files changed, 18 insertions, 18 deletions
@@ -7,26 +7,26 @@ NAMESPACE_BEGIN(CryptoPP) -#if 0 -// This must be kept in sync with stdcpp.h because <memory> is included based on the same logic. -#if ((__cplusplus >= 201103L) || (_MSC_VER >= 1600)) && !defined(__clang__) -# include <memory> - template<typename T> - using auto_ptr = std::unique_ptr<T>; -#elif defined(__clang__) -# if (__has_include(<tr1/memory>)) -# include <tr1/memory> - using std::auto_ptr; -# endif -#elif (__cplusplus < 201103L) -# include <tr1/memory> - using std::auto_ptr; +// Hack ahead. Apple's standard library does not have C++'s unique_ptr. We can't test +// for unique_ptr directly because some of the Clangs on Apple fail the same way. +// However, modern standard libraries have <forward_list>, so we test for it instead. +// Thanks to Jonathan Wakely for devising the clever test for modern/ancient versions. + +#if (__cplusplus >= 201103L) || (_MSC_VER >= 1600) +# if defined(__clang__) && (__has_include(<forward_list>)) +# define CRYPTOPP_HAVE_UNIQUE_PTR 1 +# else +# define CRYPTOPP_HAVE_UNIQUE_PTR 1 +# endif +#endif + +#ifdef CRYPTOPP_HAVE_UNIQUE_PTR +// use unique_ptr instead of auto_ptr +template<typename T> + using std::auto_ptr = std::unique_ptr<T>; #else -# include <memory> - template<typename T> - using auto_ptr = std::unique_ptr<T>; +// do nothing; use auto_ptr #endif -#endif // 0 template <class T> class simple_ptr { |